Difference between revisions of "Timeline of fats"

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This is a '''timeline of {{w|fats}}'''.
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This is a '''timeline of {{w|fats}}''', attempting to describe the variety of fats, including [[w:saturated fat|saturated]], [[w:unsaturated fat|unsaturated]], {{w|trans fat}}s, and {{w|interesterified fat}}s.
  
 
== Sample questions ==
 
== Sample questions ==
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The following are some interesting questions that can be answered by reading this timeline:
 
The following are some interesting questions that can be answered by reading this timeline:
  
* Scientific development
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* What topics are mentioned in this timeline?
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** Sort the full timeline by "Key topic".
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** You will see topics often arbitrarily picked from the details, with the purpose to give an illustrative but comprehensive overview of the discussion.
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* What are some notable scientific discoveries and developments involving fats?
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** Sort the full timeline by "Event type" and look for the group of rows with value "Scientific development".
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** You will find a large number of studies, often involving discoveries or synthesis of fatty acids.
 
* What are some of the increasing regulations having been imposed across the world on the use of fats in food products?
 
* What are some of the increasing regulations having been imposed across the world on the use of fats in food products?
 
** Sort the full timeline by "Event type" and look for the group of rows with value "Policy".
 
** Sort the full timeline by "Event type" and look for the group of rows with value "Policy".
* Literature
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** You sill see a number of policies imposed by authorities, including food strandards, commercial bans, and compulsory labeling, etc.
* What are some recommendations on the use of fats expressed by competitive entities?
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* What are some notable or illustrative publications on the topic of fats?
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** Sort the full timeline by "Event type" and look for the group of rows with value "Literature".
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** You will see a number of sample publications on the topic.
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* What are some notable recommendations of fat intake issued by competent entities?
 
** Sort the full timeline by "Event type" and look for the group of rows with value "Recommendation".
 
** Sort the full timeline by "Event type" and look for the group of rows with value "Recommendation".
* Program launch
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** You will see a number of dietary guidelines and recommendations issued by competent entities.
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* What are some notable campaigns aimed at educating the population on fat consumption?
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** Sort the full timeline by "Event type" and look for the group of rows with value "Program launch".
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** You will see endeavors aimed at improving the diet of consumer-citizens, whether through educational programs or campaigns aimed at influencing policies.
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* What are some notable events describing the industrialization of fats for mass consumption?
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** Sort the full timeline by "Event type" and look for the group of rows with value "Industrial development".
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** You will see a number of notable events illustrating the evolution of new products, starting from {{w|soap}} in early history, to {{w|shortening}} in the 20th century.
  
 
==Big picture==
 
==Big picture==
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! Time period !! Development summary !! More details
 
! Time period !! Development summary !! More details
 
|-
 
|-
| 20th century || || Dietary fat is recognized as a good source of energy and fat-soluble vitamins by the first part of the century.<ref name="Spector">{{cite journal |last1=Spector |first1=Arthur A. |last2=Kim |first2=Hee-Yong |title=Discovery of essential fatty acids |journal=Journal of Lipid Research |date=January 2015 |volume=56 |issue=1 |pages=11–21 |doi=10.1194/jlr.R055095}}</ref> Proteins and carbohydrates are known to be indispensable dietary components by the first decade.<ref name="Spector"/> During the first half of the century, higher-fat milk and dairy products were more costly.<ref name="Lichtenstein"/>  Lipases and colipases are isolated and characterized.<ref name="Lichtenstein"/>
+
| Ancient times || Early history || Fatty acids are used already in very early times, specifically in the preparation of {{w|soap}}. The ancient Babylonians use soap as early as 2500 BC. By 800 AD–900 AD, the soap industry is well established in Germany and France.<ref name="Ahmad"/>
 
|-
 
|-
| 1940s || || Concern over the health impacts of trans fats first emerge around this time.<ref name="Encyclopedia Britannicav"/>
+
| 18th–19th centuries || Early scientific development || {{w|Cholesterol}} in solid form is identified in the 18th century. In the 19th century {{w|Michel Eugène Chevreul}} stands out for his prolific research on fats. In the 19th century, one of the most important discoveries is the introduction of an industrially relevant method to split fats and oils into fatty acids and {{w|glycerin}}.<ref name="Ahmad"/>
 
|-
 
|-
| 1950s || || "By the late 1950s scientists had demonstrated a clear link between the intake of saturated fat and heart disease."<ref name="Encyclopedia Britannicav"/> "It’s been known since the 1950s that eating a lot of saturated fats is associated with heart attacks and poor cardiovascular health. "<ref name="Popular Scienceww"/> "In the late ‘50s, health advocates proposed reducing saturated fats, such as in butter and beef, from our diets, which propelled the use of margarine instead, a trend that snowballed in the 1980s."<ref name="latimes.comw">{{cite web |title=Rise and fall of trans fat: A history of partially hydrogenated oil |url=https://www.latimes.com/food/dailydish/la-dd-rise-and-fall-of-trans-fat-20131107-story.html |website=latimes.com |access-date=7 October 2021}}</ref>
+
| 20th century (first half) || Recognition of fat importance || Dietary fat is recognized as a good source of energy and fat-soluble vitamins by the first part of the century.<ref name="Spector">{{cite journal |last1=Spector |first1=Arthur A. |last2=Kim |first2=Hee-Yong |title=Discovery of essential fatty acids |journal=Journal of Lipid Research |date=January 2015 |volume=56 |issue=1 |pages=11–21 |doi=10.1194/jlr.R055095}}</ref> Proteins and carbohydrates are known to be indispensable dietary components by the first decade.<ref name="Spector"/> In the 1920s, industrial hydrogenation of edible oils develops in Europe and the United States.<ref name="Bridgwater">{{cite book |title=Trans fatty acids in human nutrition |date=2009 |publisher=Oily Press |location=Bridgwater, England |isbn=0955251230 |edition=2nd}}</ref> During the first half of the century, higher-fat milk and dairy products were more costly.<ref name="Lichtenstein"/>  Lipases and colipases are isolated and characterized.<ref name="Lichtenstein"/> In the 1930s Burr and Burr demonstrate the concept that some fatty acids may be necessary for the proper growth and development of animals.<ref name="Valenzuela"/> Concern over the health impacts of trans fats first emerge in the 1940s.<ref name="Encyclopedia Britannicav"/>
 
|-
 
|-
| 1980s || || An association between high intake of saturated fat and increased risk of heart disease is firmly established.<ref name="Encyclopedia Britannicav"/>
+
| 20th century (second half) || Recognition of potential harm || Research on trans fatty acids begin in the 1950s.<ref name="Storey">{{cite journal |last1=Storey |first1=Maureen L |last2=Anderson |first2=Patricia A |title=Changes in Mean Intake of Fatty Acids and Intake of Saturated and trans Fats from Potatoes: NHANES 2005–2006, 2007–2008, and 2009–2010 |journal=Advances in Nutrition |date=1 May 2015 |volume=6 |issue=3 |pages=376S–382S |doi=10.3945/an.114.007039}}</ref> By the late 1950s, scientists establish a clear link between the intake of saturated fat and heart disease,<ref name="Encyclopedia Britannicav"/><ref name="Popular Scienceww"/> while health advocates start proposing a reduction saturated fats, such as in butter and beef, from the diets, which propells the use of {{w|margarine}} instead, a trend that would increase abruptly toward the 1980s.<ref name="latimes.comw">{{cite web |title=Rise and fall of trans fat: A history of partially hydrogenated oil |url=https://www.latimes.com/food/dailydish/la-dd-rise-and-fall-of-trans-fat-20131107-story.html |website=latimes.com |access-date=7 October 2021}}</ref> Throughout the 1950s and 1960s, saturated fat begin acquiring a bad reputation.<ref name="Belluz">{{cite web |last1=Belluz |first1=Julia |title=For years, the government told Americans to avoid fat. That was wrong. |url=https://www.vox.com/2015/11/24/9782098/dietary-fat-saturated-fat-good-or-bad |website=Vox |access-date=2 December 2021 |language=en |date=24 November 2015}}</ref> In the 1960s, essential fatty acids start being considered of importance in human nutrition.<ref name="Valenzuela"/> In the 1970s, {{w|saturated fat}} is condemned as harmful since Ancel Keys’s landmark “seven countries” study.<ref name="poiuy"/> In the 1980s, an association between high intake of saturated fat and increased risk of heart disease is firmly established,<ref name="Encyclopedia Britannicav"/> however, this era's recommendations about switching to a low-fat diet are not supported by science, with any high-quality evidence to support that advice.<ref name="Belluz"/> In the 1990s, evidence emerges indicating that trans fats carry a higher risk for heart disease than saturated fats.<ref name="Encyclopedia Britannicav"/> Several studies conducted in this decade show a connection between trans fat and increased levels of bad cholesterol.<ref name="latimes.comw"/>
 
|-
 
|-
| 1990s || || Evidence emerges indicating that trans fats carry a higher risk for heart disease than saturated fats.<ref name="Encyclopedia Britannicav"/> Several studies conducted in this decade show a connection between trans fat and increased levels of bad cholesterol.<ref name="latimes.comw"/>
+
| 21st century || Policy enforcement/change in sentiment || In the early 2000s, health agencies in various countries worldwide recognize the need to introduce regulations controlling the amount of trans fats used in manufactured foods.<ref name="Encyclopedia Britannicav"/> In recent times, there's an increasing debate over the role saturated fats play in the development of heart disease, with more experts claiming that saturated fats not only are not that harmful,<ref>{{cite web |title=Time for a rethink on saturated fat? |url=https://www.foodnavigator-usa.com/Article/2014/06/30/Time-for-a-rethink-on-saturated-fat |website=foodnavigator-usa.com |access-date=3 December 2021}}</ref> but even healthy.<ref name="Everyone W">{{cite web |title=Everyone Was Wrong: Saturated Fat Can Be Good for You |url=https://greatist.com/health/saturated-fat-healthy#1 |website=Greatist |access-date=3 December 2021 |language=en |date=21 November 2013}}</ref><ref>{{cite web |title=The Truth About Saturated Fats - Dr Sarah Brewer |url=https://drsarahbrewer.com/saturated-fats-not-linked-to-heart-attack-or-even-death?cn-reloaded=1 |website=drsarahbrewer.com |access-date=3 December 2021}}</ref> Today, a general consensus claims that trans fats are harmful, polyunsaturated and monounsaturated fats are healthy, and saturated fats are regarded somewhere in-between.<ref>{{cite web |title=The truth about fats: the good, the bad, and the in-between |url=https://www.health.harvard.edu/staying-healthy/the-truth-about-fats-bad-and-good |website=Harvard Health |access-date=3 December 2021 |language=en |date=3 February 2015}}</ref> Scientists universally accept that trans fats increase the risk of {{w|cardiovascular disease}} through inflammatory processes.<ref name="poiuy">{{cite journal |last1=Malhotra |first1=Aseem |title=Saturated fat is not the major issue |journal=BMJ |date=22 October 2013 |volume=347 |pages=f6340 |doi=10.1136/bmj.f6340 |url=https://www.bmj.com/content/347/bmj.f6340 |language=en |issn=1756-1833}}</ref>  
|-
 
| 2000s || || In the early decade, health agencies in various countries worldwide recognize the need to introduce regulations controlling the amount of trans fats used in manufactured foods.<ref name="Encyclopedia Britannicav"/>
 
 
|-
 
|-
 
|}
 
|}
  
== Numerical and visual data  ==
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==Full timeline==
 
 
=== Google Scholar ===
 
 
 
The following table summarizes per-year mentions on Google Scholar as of October 6, 2021.
 
  
 
{| class="sortable wikitable"
 
{| class="sortable wikitable"
! Year
+
! Year !! Event type !! Key topic !! Fat type (when applicable) !! Details !! Location
! "trans fat"
+
|-
! "saturated fat"
+
| 800 AD || Industrial development || {{w|Fatty acid}} || || {{w|Soap}}, which is a salt of a fatty acid, is produced in {{w|Germany}}.<ref name="Ahmad"/> || {{w|Germany}}
! "fatty acid"
+
|-
! "triglyceride"
+
| 1551 || Scientific development || {{w|Adipose tissue}} || || {{w|Adipose tissue}} – more specifically brown adipose tissue– is first identified by Swiss naturalist {{w|Conrad Gessner}}.<ref>{{cite journal |last1=Cannon |first1=Barbara |last2=Nedergaard |first2=Jan |title=Neither fat nor flesh |journal=Nature |date=August 2008 |volume=454 |issue=7207 |pages=947–948 |doi=10.1038/454947a}}</ref> ||
 +
|-
 +
| 1769 || Scientific development || {{w|Cholesterol}} || || {{w|François Poulletier de la Salle}} first identifies cholesterol in solid form in {{w|gallstone}}s. Some consider this to be the start of the story of lipids in humans.<ref name="Kuijpers">{{cite web |last1=Kuijpers' |first1='Petra M. J. C. |title=History in medicine: the story of cholesterol, lipids and cardiology |url=https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-19/history-in-medicine-the-story-of-cholesterol-lipids-and-cardiology |website=www.escardio.org |access-date=30 October 2021}}</ref> || {{w|France}}
 +
|-
 +
| 1770s || Medical development || Fish liver oil || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Reports from this time indicate that fish liver oils are used for the treatment of {{w|rickets}}, {{w|osteomalacia}}, general malnutrition, and eye conditions, thus linking, for the first time, fish liver oils and the factor termed “fat-soluble A.”<ref name="Lichtenstein"/> Today, it is known that fish body oil and fish liver oil are rich in omega-3 essential fatty acids, which can help control the immune system and fight joint inflammation.<ref>{{cite web |title=Fish oils |url=https://www.versusarthritis.org/about-arthritis/complementary-and-alternative-treatments/types-of-complementary-treatments/fish-oils/ |website=Versus Arthritis |access-date=30 October 2021 |language=en-gb}}</ref> ||
 +
|-
 +
| 1779 || Scientific development || {{w|Glycerol}} || || Swedish chemist {{w|Carl Wilhelm Scheele}} discovers that {{w|glycerol}} could be obtained from {{w|olive oil}} by heating it with {{w|litharge}} (lead monoxide).<ref name="Fat {{!}} substance">{{cite web |title=Fat {{!}} substance |url=https://www.britannica.com/topic/fat |website=Encyclopedia Britannica |access-date=16 September 2021 |language=en}}</ref> Along with {{w|fatty acid}}s, glycerol is one of the two main components of a fat molecule.<ref>{{cite web |title=Lipids {{!}} Boundless Chemistry |url=https://courses.lumenlearning.com/boundless-chemistry/chapter/lipids/#:~:text=A%20fat%20molecule%20consists%20of,three%20hydroxyl%20(OH)%20groups.&text=In%20a%20fat%20molecule%2C%20the,bond%20through%20the%20oxygen%20atom. |website=courses.lumenlearning.com |access-date=6 October 2021}}</ref> || {{w|Sweden}}
 +
|-
 +
| 1791 || Scientific development || Essential oil, greasy oil || || Swiss scientist {{w|Jean Senebier}} reports in the ''Encyclopédie méthodique, Physiologie végétale'' a classification of oils. They are separated into essential and greasy oils.<ref name="cyberlipid.gerli.com"/> || {{w|Switzerland}}
 +
|-
 +
| 1792 || Scientific development || Oil oxidation || || {{w|Jean Senebier}} observes that exposure to air causes oils to go white, lose their fluidity, and in time go rancid. Further investigation convinces him that rancidity involves oxidation.<ref name="The queen of fats"/> || {{w|Switzerland}}
 +
|-
 +
| 1813 || Scientific development || {{w|Fatty acid}} || || The concept of {{w|fatty acid}} (''acide gras'') is introduced by {{w|Michel Eugène Chevreul}},<ref>Chevreul, M. E. (1813). Sur plusieurs corps gras, et particulièrement sur leurs combinaisons avec les alcalis. ''Annales de Chimie'', t. 88, p. 225-261. [http://gallica.bnf.fr/ark:/12148/bpt6k65741176/f225.item link (Gallica)], [https://books.google.com/books?id=8-sYI8xfBGMC link (Google)].</ref><ref>Chevreul, M. E. ''Recherches sur les corps gras d'origine animale''. Levrault, Paris, 1823. [https://archive.org/details/rechercheschimi00chevgoog link].</ref> though he initially uses some variant terms: ''graisse acide'' and ''acide huileux'' ("acid fat" and "oily acid").<ref>Menten, P. ''Dictionnaire de chimie: Une approche étymologique et historique''. De Boeck, Bruxelles. [https://books.google.com/books?id=NKTKDgAAQBAJ link].</ref> || {{w|France}}
 +
|-
 +
| 1814 || Scientific development || {{w|Butyric acid}} || [[w:Saturated fat|Saturated]] || French chemist {{w|Michel-Eugène Chevreul}} first observes {{w|butyric acid}}. By 1818, he purifies it sufficiently to characterize it.<ref>Chevreul (1815) [https://books.google.com/books?id=tZU5AAAAcAAJ&pg=PA73#v=onepage&q&f=false "Lettre de M. Chevreul à MM. les rédacteurs des Annales de chimie"] (Letter from Mr. Chevreul to the editors of the Annals of Chemistry), ''Annales de chimie'', '''94''' : 73–79; in a footnote spanning pages 75–76, he mentions that he had found a substance that is responsible for the smell of butter.</ref><ref name="Ahmad"/> || {{w|France}}
 +
|-
 +
| 1814 || Scientific development || {{w|Oil body}} || || {{w|Michel-Eugène Chevreul}} shows that hog’s lard consists of two distinct oily bodies: one being a solid at room temperature and the other, a liquid.<ref name="The queen of fats"/> || {{w|France}}
 +
|-
 +
| 1815 || Scientific development || {{w|Cholesterol}} || || {{w|Michel-Eugène Chevreul}} demonstrates the chemical nature of fats and oils.<ref name="Fat {{!}} substance"/> He also names the compound "[[w:cholesterol|cholesterine]]".<ref>Chevreul (1816) "Recherches chimiques sur les corps gras, et particulièrement sur leurs combinaisons avec les alcalis. Sixième mémoire. Examen des graisses d'homme, de mouton, de boeuf, de jaguar et d'oie" (Chemical researches on fatty substances, and particularly on their combinations o filippos ine kapios with alkalis. Sixth memoir. Study of human, sheep, beef, jaguar and goose fat), ''Annales de Chimie et de Physique'', '''2''' : 339–372. From [https://books.google.com/books?id=DHCz1nhhYL8C&pg=PA346#v=onepage&q&f=false page 346] : "Je nommerai ''cholesterine'', de χολη, bile, et στερεος, solide, la substance cristallisée des calculs biliares humains, ... " (I will name ''cholesterine'' – from χολη (bile) and στερεος (solid) – the crystalized substance from human gallstones ... )</ref><ref name="Olson_1998">{{cite journal | vauthors = Olson RE | title = Discovery of the lipoproteins, their role in fat transport and their significance as risk factors | journal = The Journal of Nutrition | volume = 128 | issue = 2 Suppl | pages = 439S–443S | date = February 1998 | pmid = 9478044 | doi = 10.1093/jn/128.2.439S | doi-access = free }}</ref> || {{w|France}}
 +
|-
 +
| 1815 || Scientific development || {{w|Lipid}} || || {{w|Henri Braconnot}} classifies {{w|lipid}}s (''graisses'') in two categories, ''suifs'' (solid greases or tallow) and ''huiles'' (fluid oils).<ref name = "Braconnot_1815">{{cite journal | vauthors = Braconnot H | title = Sur la nature des corps gras. | journal = Annales de chimie | date = 31 March 1815 | volume = 2 | issue = XCIII | pages = 225–277 | url = http://gallica.bnf.fr/ark:/12148/bpt6k6568590p/f229.item }}</ref> || {{w|France}}
 +
|-
 +
| 1816 || Scientific development || {{w|Caproic acid}} || [[w:Saturated fat|Saturated]] || {{w|Michel-Eugène Chevreul}} first isolates {{w|caproic acid}} (from the Latin word ''caper'', meaning goat) from {{w|butter}}.<ref>{{cite web |title=Caproic acid: structural and chemical formula, sources |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/caproic/ |website=Tuscany Diet |access-date=29 October 2021}}</ref> A saturated medium-chain fatty acid with a 6-carbon backbone, caproic acid is found naturally in various plant and animal fats and oils.<ref>{{cite web |title=Hexanoic acid |url=https://pubchem.ncbi.nlm.nih.gov/compound/Hexanoic-acid#:~:text=Caproic%20Acid%20is%20a%20saturated,solution%20with%20an%20unpleasant%20odor. |website=pubchem.ncbi.nlm.nih.gov |access-date=29 October 2021 |language=en}}</ref> This fatty acid works as an anti-viral, as well as boots energy, and promotes weight loss.<ref>{{cite web |title=Caproic Acid Natural (Decanoic Acid) |url=https://www.vigon.com/caproic-acid-natural-decanoic-acid/ |website=Vigon |access-date=29 October 2021 |date=30 October 2019}}</ref> || {{w|France}}
 +
|-
 +
| 1819 || Scientific development || {{w|Elaidic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:Omega-9 fatty acid|ω−9]])) || French chemist Jean-Joseph-Etienne Poutet from {{w|Marseille}} first obtains {{w|elaidic acid}}<ref name="Elaidic acid">{{cite web |title=Elaidic acid: chemical structure, properties and food sources |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/elaidic/ |website=Tuscany Diet |access-date=29 October 2021}}</ref>, a monounsaturated trans fatty acid.<ref>{{cite web |title=Elaidic Acid (CAS 112-79-8) |url=https://www.caymanchem.com/product/90250/elaidic-acid |website=www.caymanchem.com |access-date=29 October 2021 |language=en}}</ref><ref>{{cite web |title=§ POUTET (Jean-Joseph-Etienne). Instruction... - Lot 495 |url=https://www.millon.com/en/lot/107433/13345701?offset=450& |website=Millon |access-date=30 October 2021 |language=fr}}</ref> || {{w|France}}
 +
|-
 +
| 1823 || Scientific development || {{w|Lipid}} classification || || French chemist {{w|Michel Eugène Chevreul}} develops a more detailed classification of {{w|lipid}}s, including oils, greases, tallow, waxes, resins, balsams and volatile oils (or essential oils).<ref name = "Chevreul_1823">{{cite book | vauthors = Chevreul ME | title = Recherches sur les corps gras d'origine animale | publisher = Levrault | location = Paris | date = 1823 | url = https://books.google.com/books?id=r46rnl27h70C }}</ref><ref name="Leray_2012">{{cite book | vauthors = Leray C | date = 2012 | title = Introduction to Lipidomics | location = Boca Raton | publisher = CRC Press | url = https://books.google.com/books?id=u710vE5IgrgC | isbn = 9781466551466 }}</ref> || {{w|France}}
 +
|-
 +
| 1823 || Scientific development || {{w|Stearic acid}} || [[w:Saturated fat|Saturated]] || {{w|Michel Eugène Chevreul}} first describes {{w|stearic acid}}, named from the Greek word stéar, meaning tallow (also known as beef fat).<ref>{{cite web |title=Stearic acid: chemical structure, properties, food sources |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/stearic/ |website=Tuscany Diet |access-date=28 October 2021}}</ref> || {{w|France}}
 +
|-
 +
| 1823 || Scientific development || {{w|Oleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:Omega-9 fatty acid|ω−9]])) || {{w|Michel Eugène Chevreul}} first recognizes {{w|oleic acid}} in pork fat.<ref name="Oleic acid">{{cite web |title=Oleic acid: structure, health benefits, and food sources |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/oleic/ |website=Tuscany Diet |access-date=29 October 2021}}</ref> Oleic acid is a fatty acid that occurs naturally in various animal and vegetable fats and oils.<ref>{{cite web |title=oleic acid (CHEBI:16196) |url=https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:16196#:~:text=Oleic%20acid%20is%20a%20fatty,18%3A1%20cis%2D9. |website=www.ebi.ac.uk |access-date=29 October 2021}}</ref>
 +
|| {{w|France}}
 +
|-
 +
| 1823 || Literature || {{w|Michel Eugène Chevreul}} || || {{w|Michel Eugène Chevreul}} publishes ''Chemistry of Fats and Oils''.<ref name="Ahmad"/> || {{w|France}}
 +
|-
 +
| 1825 || Scientific development || Fatty acids distillation || || Distillation of fatty acids is achieved.<ref name="Ahmad"/>
 +
|-
 +
| 1827 || Scientific development || Fat as nutrient || || English chemist {{w|William Prout}} recognizes fat ("oily" alimentary matters), along with protein ("albuminous") and carbohydrate ("saccharine"), as an important nutrient for humans and animals.<ref>{{cite web |title=Wayback Machine |url=https://web.archive.org/web/20171013173759/http://www.cyberlipid.org/cyberlip/home0001.htm |website=web.archive.org |access-date= |date=13 October 2017}}</ref><ref>{{cite journal | vauthors = Prout W | date = 1827 | title = On the ultimate composition of simple alimentary substances, with some preliminary remarks on the analysis of organised bodies in general. | journal = Phil. Trans. | pages = 355–388 | url = https://books.google.com/books?id=UO5FAAAAMAAJ }}</ref> || {{w|United Kingdom}}
 +
|-
 +
| 1828 || Scientific development || Fatty acid separation || || A method for separation of solid and liquid fatty acids is obtained.<ref name="Ahmad"/> ||
 +
|-
 +
| 1832 || Scientific development || {{w|Elaidic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:Omega-9 fatty acid|ω−9]])) || F. Boudet, studying accurately J.J.E. Poutet’s work, manages to isolate {{w|elaidic acid}}, and names it ''acide élaidique''.<ref name="Elaidic acid"/> ||
 +
|-
 +
| 1840 || Scientific development || {{w|Palmitic acid}} || [[w:Saturated fat|Saturated]] || French chemist {{w|Edmond Frémy}} discovers {{w|palmitic acid}} in [[w:Saponification|saponified]] palm oil.<ref>{{cite journal |first=E. |last=Frémy |title=Memoire sur les produits de la saponification de l'huile de palme |journal=Journal de Pharmacie et de Chimie |volume=XII  |year=1842 |pages=757 }}</ref> || {{w|France}}
 +
|-
 +
| 1841 || Scientific development || {{w|Myristic acid}} || [[w:Saturated fat|Saturated]] || [[w:Lyon Playfair, 1st Baron Playfair|Lyon Playfair]] first isolates {{w|myristic acid}} from {{w|nutmeg}} (''{{w|Myristica fragrans}}'').<ref name="Playfair2009">{{cite journal|last1=Playfair|first1=Lyon|title=XX. On a new fat acid in the butter of nutmegs|journal=Philosophical Magazine |series=Series 3|volume=18|issue=115|year=2009|pages=102–113|issn=1941-5966|doi=10.1080/14786444108650255|url=https://zenodo.org/record/1431027}}</ref> ||
 +
|-
 +
| 1842 || Scientific development || {{w|Lauric acid}} || [[w:Saturated fat|Saturated]] || T. Marsson discovers {{w|lauric acid}} in the seeds of ''Laurus nobilis'', from which its name.<ref>{{cite web |title=Lauric acid: chemical structure, properties, food sources |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/lauric/ |website=Tuscany Diet |access-date=27 October 2021}}</ref> ||
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|-
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| 1844 || Scientific development || {{w|Triglyceride}}, {{w|fat interesterification}} || [[W:Interesterified fat|Interesterified]] || The first synthetic {{w|triglyceride}} is reported by {{w|Théophile-Jules Pelouze}}, who manages to produce {{w|tributyrin}} by treating {{w|butyric acid}} with {{w|glycerin}} in the presence of concentrated {{w|sulfuric acid}}.<ref>{{cite journal | vauthors = Pelouze TJ, Gélis A | title = Mémoire sur l'acide butyrique | journal = Annales de Chimie et de Physique | volume = 10 | pages = 434 |date = 1844 }}</ref> This is the earliest record of enzymatic Interesterification.<ref>Chim Phys 10 (1844). Pelouze, J. Ann. Page 434.</ref> || {{w|France}}
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|-
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| 1844 || Scientific development || {{w|Linoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || {{w|Linoleic acid}} (from the Latin ''linon'', meaning flax, plus ''oleic'', meaning oil or olive oil) is isolated by F. Sacc from linseed oil.<ref name="Linoleic acid: defini">{{cite web |title=Linoleic acid: definition, structure, function, and foods |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/linoleic/ |website=Tuscany Diet |access-date=29 October 2021}}</ref> It is a polyunsaturated essential fatty acid found mostly in plant oils.<ref>{{cite web |title=Linoleic acid |url=https://pubchem.ncbi.nlm.nih.gov/compound/Linoleic-acid |website=pubchem.ncbi.nlm.nih.gov |access-date=29 October 2021 |language=en}}</ref> ||
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|-
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| 1844 || Scientific development || {{w|Propionic acid}} || [[w:Saturated fat|Saturated]] || Austrian chemist {{w|Johann Gottlieb}} first describes {{w|propionic acid}}, after finding it among the degradation products of sugar.<ref>Johann Gottlieb (1844) [https://babel.hathitrust.org/cgi/pt?id=uva.x002457921;view=1up;seq=581 "Ueber die Einwirkung von schmelzendem Kalihydrat auf Rohrzucker, Gummi, Stärkmehl und Mannit"] (On the effect of molten potassium hydroxide on raw sugar, rubber, starch powder, and mannitol), ''Annalen der Chemie und Pharmacie'', '''52''' :  121–130.  After combining raw sugar with an excess of potassium hydroxide and distilling the result, Gottlieb obtained a product that he called "Metacetonsäure" (meta-acetone acid) on p. 122:  ''"Das Destillat ist stark sauer und enthält Ameisensäure, Essigsäure und eine neue Säure, welche ich, aus unten anzuführenden Gründen, Metacetonsäure nenne."''  (The distillate is strongly acidic and contains formic acid, acetic acid, and a new acid, which for reasons to be presented below I call "meta-acetone acid".)</ref>
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|-
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| 1847 || Scientific development || {{w|Phospholipid}} || || French pharmacist {{w|Theodore Nicolas Gobley}} discovers {{w|phospholipid}}s in mammalian brain and hen egg, called by him as "{{w|lecithin}}s".<ref>{{cite journal |last1=Zeisel |first1=Steven H. |title=A Brief History of Choline |journal=Annals of Nutrition and Metabolism |date=2012 |volume=61 |issue=3 |pages=254–258 |doi=10.1159/000343120}}</ref> || {{w|France}}
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|-
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| 1848 || Scientific development || {{w|Behenic acid}} || [[w:Saturated fat|Saturated]] || {{w|Behenic acid}} is first reported by A. Voelcker.<ref>{{cite web |title=Behenic acid: chemical structure, properties, food sources |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/behenic/ |website=Tuscany Diet |access-date=9 November 2021}}</ref><ref name="Ahmad"/> ||
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|-
 +
| 1848 || Scientific development || {{w|Ricinoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-9 fatty acid|ω−9]])) || {{w|Ricinoleic acid}} is discovered.<ref name="Ahmad"/> ||
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|-
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| 1849 || Scientific development || {{w|Pancreatic juice}} || || French physiologist {{w|Claude Bernard}} reports that pancreatic juice is involved in the breakdown of fat to {{w|glycerine}} and {{w|fatty acid}}s for subsequent absorption.<ref name="Lichtenstein">{{cite journal |last1=Lichtenstein |first1=Alice H. |title=Dietary Fat: A History |journal=Nutrition Reviews |date=27 April 2009 |volume=57 |issue=1 |pages=11–14 |doi=10.1111/j.1753-4887.1999.tb01770.x}}</ref> || {{w|France}}
 +
|-
 +
| 1849 || Scientific development || {{w|Erucic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-9 fatty acid|ω−9]]))<ref>{{cite web |title=Erucic acid a possible health risk for highly exposed children {{!}} EFSA |url=https://www.efsa.europa.eu/en/press/news/161109 |website=www.efsa.europa.eu |access-date=9 November 2021 |language=en}}</ref> || {{w|Erucic acid}} is discovered.<ref name="Ahmad"/> ||
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|-
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| 1852 || Scientific development || {{w|Polymorphism}} || || Polymorphism is discovered.<ref name="Ahmad"/> Today, an important quality parameter in fat research as well as in industrial applications is the polymorphic state of edible fats.<ref>{{cite web |title=Characterisation of Fat Crystal Polymorphism in Cocoa Butter |url=https://www.mdpi.com/2304-8158/10/3/520/pdf}}</ref> ||
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|-
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| 1853 || Scientific development || {{w|Gylceride}} || || The term {{w|gylceride}} is first used.<ref name="Ahmad"/> ||
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|-
 +
| 1854 || Scientific development || {{w|Triglyceride}} ({{w|triacetin}}) || || {{w|Triacetin}} is first prepared by French chemist {{w|Marcellin Berthelot}}.<ref>{{cite journal|last1=Berthelot|first1=Marcellin |title=Sur les combinaisons de le glycérine avec les acides et sur la synthèse des principes immédiats des graisses des animaux|journal=Annales de Chimie et de Physique|date=1854|volume=41|pages=216–319|url=https://babel.hathitrust.org/cgi/pt?id=hvd.hx3dyk;view=1up;seq=290|series=3rd series|trans-title=On the compounds of glycerin with acids and on the synthesis of immediate principles of animal fats|language=French}} ; see "Triacétine", pp. 282–283.</ref> || {{w|France}}
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|-
 +
| 1854 || Scientific development || {{w|Palmitoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-7 fatty acid|ω−7]])) || P.G. Hofstädter first notices {{w|palmitoleic acid}} in sperm whale oil and names physetoleic acid.<ref name="Tuscany Dietve">{{cite web |title=Palmitoleic acid: structure, synthesis, sources, lipokines |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/palmitoleic/ |website=Tuscany Diet |access-date=29 October 2021}}</ref>  ||
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|-
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| 1855 || Scientific development || {{w|Glycerol}} || || The correct structure of glycerol is determined.<ref name="Ahmad"/> ||
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|-
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| 1856 || Scientific development || {{w|Lipid}} || || German {{w|pathologist}} {{w|Rudolf Virchow}} first describes {{w|lipid}} accumulation in arterial walls.<ref name="Virchow">{{cite book|last=Virchow|first=Rudolf|title=Vierteljahrschrift für die praktische Heilkunde|publisher=Staatsdruckerei Frankfurt|year=1856|location=Germany|at=Phlogose und Thrombose im Gefäßsystem|chapter=Gesammelte Abhandlungen zur wissenschaftlichen Medizin|chapter-url=https://books.google.com/books?id=rsRXAAAAMAAJ&q=%22Phlogose%22&pg=RA5-PA47}}</ref> || {{w|Germany}}
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|-
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| 1869 || Scientific development || {{w|Margarine}} || [[w:Unsaturated fat|Unsaturated]] || French chemist {{w|Hippolyte Mège-Mouriès}} invents the {{w|margarine}}. In the same year, he wins a prize offered by {{w|Napoleon III}} for a satisfactory {{w|butter}} substitute.<ref name="Fat {{!}} substance"/><ref>{{cite book |last1=Preedy |first1=Victor R. |last2=Srirajaskanthan |first2=Rajaventhan |last3=Patel |first3=Vinood B. |title=Handbook of Food Fortification and Health: From Concepts to Public Health Applications Volume 1 |date=4 July 2013 |publisher=Springer Science & Business Media |isbn=978-1-4614-7076-2 |url=https://books.google.com.ar/books?id=0YJDAAAAQBAJ&pg=PA160&dq=Hippolyte+M%C3%A8ge-Mouri%C3%A8s+%22in+1860..1869%22&hl=en&sa=X&ved=2ahUKEwjTqvHZkbzzAhUbpJUCHdr8CT8Q6AF6BAgDEAI#v=onepage&q=Hippolyte%20M%C3%A8ge-Mouri%C3%A8s%20%22in%201860..1869%22&f=false |language=en}}</ref> Margarine is made from vegetable oils, so it contains polyunsaturated and monounsaturated fats. These types of fats help reduce low-density lipoprotein (LDL).<ref>{{cite web |title=Butter vs. margarine: Which is better for my heart? |url=https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/expert-answers/butter-vs-margarine/faq-20058152 |website=Mayo Clinic |access-date=28 October 2021 |language=en}}</ref> || {{w|France}}
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|-
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| 1876 || Scientific development || {{w|Cholesterol}} || || German chemist {{w|Adolf Windaus}} reports that [[w:Atheroma|plaques]] in {{w|aorta}}s from {{w|atherosclerosis}} patients contain 20 times more cholesterol than normal aortas.<ref name="Kuijpers"/> || {{w|Germany}}
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|-
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| 1879 || Scientific development || {{w|Lipid}} || || The {{w|Soxhlet extractor}} is invented by German chemist {{w|Franz von Soxhlet}}. It is originally designed for the extraction of a lipid from a solid material.<ref name="Ahmad"/> ||
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|-
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| 1881 || Scientific development || Hydroxy myristic acid || || Hydroxy myristic acid is discovered.<ref name="Ahmad"/> ||
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|-
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| 1886 || Scientific development || {{w|Brassidic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]]) || {{w|Brassidic acid}} is first prepared from erucic acid by W. Reimer. It is an unsaturated fatty acid, member of the sub-group called very long chain fatty acids.<ref>{{cite web |title=Brassidic acid: chemical structure, properties |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/brassidic/ |website=Tuscany Diet |access-date=29 October 2021}}</ref> ||
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|-
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| 1886 || Scientific development || {{w|Linoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || The {{w|diene}} structure of linoleic acid is determined.<ref name="Ahmad"/> ||
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|-
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| 1887 || Scientific development || {{w|alpha-Linolenic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || {{w|alpha-Linolenic acid}} is isolated by K. Hazura and Monatsh.<ref name="alpha-Lino">{{cite web |title=alpha-Linolenic acid: structure, metabolism, food sources |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/alpha-linolenic/ |website=Tuscany Diet |access-date=29 October 2021}}</ref> First found in {{w|hempseed oil}}, it is a type of omega-3 fatty acid found in plants.<ref name="Mount Sinai He">{{cite web |title=Alpha-linolenic acid Information {{!}} Mount Sinai - New York |url=https://www.mountsinai.org/health-library/supplement/alpha-linolenic-acid#:~:text=Alpha%2Dlinolenic%20acid%20is%20a,and%20docosahexaenoic%20acid%20(DHA). |website=Mount Sinai Health System |access-date=29 October 2021}}</ref><ref name="The queen of fats"/> ||
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|-
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| 1887 || Scientific development || Triene acid || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]]) || Triene acid in {{w|hempseed oil}} is determined.<ref name="Ahmad"/> ||
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|-
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| 1888 || Scientific development || {{w|Cholesterol}} || || Friedrich Reinitzer describes the molecular structure of {{w|cholesterol}}.<ref name="Kuijpers"/> ||
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|-
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| 1890 || Scientific development || Fats, proteins, carbohydrates || || It is written that “fat stands between the two great nutrients, proteids ({{w|protein}}s) on the one hand and {{w|carbohydrate}}s on the other, and we find that we can indulge in considerable latitude as to its use. When we wish to get our food in a more condensed form, we can use fats freely.”<ref name="Lichtenstein"/> ||
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|-
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| 1892 || Scientific development || Acetylenic acid || || The first acetylenic acid is reported.<ref name="Ahmad"/> ||
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|-
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| 1894 || Scientific development || {{w|Ricinoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-9 fatty acid|ω−9]])) || The correct structure of ricinoleic acid is determined.<ref name="Ahmad"/> ||
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|-
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| 1895 || Literature || Fat chemistry || || The first book on the chemistry of fats and oils is published.<ref name="Ahmad"/> ||
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|-
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| 1897 || Scientific development || {{w|Hydrogenation}} || || French chemist {{w|Paul Sabatier}} describes the hydrogenation of organic compounds in the presence of finely disintegrated metals. Catalytic hydrogenation is considered a major advance in fatty acid chemistry. Sabatier would be later awarded the {{w|Nobel Prize in chemistry}}.<ref name="Ahmad"/><ref name="The queen of fats"/> || {{w|France}}
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|-
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| 1898 || Scientific development || Fat-splitting || || United States chemist Ernst Twitchell patents a catalytic method for fat-splitting. Later known as the Twitchell process, it consists in acid catalyst being prepared by the reaction of oleic acid with sulfuric acid and naphthalene.<ref name="Ahmadvvddvd">{{cite book |last1=Ahmad |first1=Moghis U. |title=Fatty Acids: Chemistry, Synthesis, and Applications |date=21 July 2017 |publisher=Elsevier |isbn=978-0-12-809544-7 |url=https://books.google.com.ar/books/about/Fatty_Acids.html?id=QioUDgAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> || {{w|United States}}
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|-
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| 1898 || Scientific development || {{w|Chromatography}} || || Liquid chromatography is reported as a purification method of fatty acids.<ref name="Ahmad"/> ||
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|-
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| 1898 || Scientific development || {{w|Oleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-9 fatty acid|ω−9]])) || The structure of {{w|oleic acid}} is elucidated by the works of J. Baruch and F.G. Edmed.<ref name="Oleic acid"/> It is a mono-unsaturated omega-9 fatty acid.<ref>{{cite web |title=Omega-9 Fatty Acid - an overview {{!}} ScienceDirect Topics |url=https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/omega-9-fatty-acid#:~:text=Oleic%20acid%20is%20a%20mono,solubilizing%20agent%20in%20aerosol%20products. |website=www.sciencedirect.com |access-date=29 October 2021}}</ref><ref name="Ahmad"/> ||
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|-
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| 1900 || Scientific development || Benzenestearosulphonic acid || || Ernst Twitchell reports that treatment of oleic acid and benzene with concentrated sulfuric acid yields benzene stearosulphonic acid useful as a fat-splitting reagent.<ref name="Ahmad"/> ||
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|-
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| 1900 || Industrial development || Oil extraction || || The first continuous screw press for extracting oil from oil seeds is manufactured V. D. Anderson in Cleveland, Ohio. Called the "expeller", it is much more efficient than earlier hydraulic presses, but it still leaves much of the oil in the meal and much room, therefore, for improvement.<ref name="The queen of fats"/> || {{w|United States}}
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|-
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| 1901 || Scientific development || {{w|Hydrogenation}} || || German chemist {{w|Wilhelm Normann}} experiments with hydrogenation catalysts and successfully induces the hydrogenation of liquid fat, producing semisolid fat, which came to be known as trans fat.<ref name="Encyclopedia Britannicav">{{cite web |title=Trans fat {{!}} food product |url=https://www.britannica.com/science/trans-fat |website=Encyclopedia Britannica |access-date=5 October 2021 |language=en}}</ref> || {{w|Germany}}
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|-
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| 1902 || Scientific development || Fat deposition || || Rosenfeld shows that a high-carbohydrate, low protein diet results in fat deposition.<ref name="Taubes"/> ||
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|-
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| 1903 || Scientific development || {{w|Hydrogenation}} || || German chemist {{w|Wilhelm Normann}} patents the hydrogenation of liquid oils,<ref name="Encyclopedia Britannicav"/> which "converts unsaturated fatty acids into saturated compounds".<ref name="The queen of fats"/> || {{w|Germany}}
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|-
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| 1904 || Scientific development || Cyclopentyl acid || || The first cyclopentyl acid is discovered.<ref name="Ahmad"/> ||
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|-
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| 1905 || Scientific development || Purified fat || || Pekelharing observes that mice could not grow optimally while consuming only a mixture of purified fat, {{w|carbohydrate}}, and {{w|protein}}.<ref name="Lichtenstein"/> ||
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|-
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| 1906 || Scientific development || {{w|Palmitoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-7 fatty acid|ω−7]])) || H. Bull discovers the molecular composition of {{w|palmitoleic acid}}, at the time when Lewkowitsch gives the present name.<ref name="Tuscany Dietve"/> ||
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|-
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| 1906 || Scientific development || {{w|Gadoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-11 fatty acid|ω−11]])) || H. Bull discovers {{w|gadoleic acid}} in {{w|cod liver oil}}.<ref name="Gadoleic acid">{{cite web |title=Gadoleic acid: chemical structure, properties, and food sources |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/gadoleic/ |website=Tuscany Diet |access-date=6 November 2021}}</ref>
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| 1906 || Industrial development || {{w|Hydrogenation}} || || Joseph Crosfields & Sons in {{w|Warrington}}, {{w|England}}, begin industrial hydrogenation in {{w|Europe}}.<ref name="Blackwell Pub"/> || {{w|United Kingdom}}
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| 1908 || Scientific development || {{w|Penta-2,3-dienedioic acid}} || || {{w|Penta-2,3-dienedioic acid}} is isolated from the leaf resin of European alder ''Alnus glutinosa'' (Betulaceae).<ref name="Ahmadvvddvd"/> ||
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| 1909 || Scientific development || {{w|Cholesterol}}, {{w|atherosclerosis}}|| || Alexander I. Ignatowski describes the relationship between a diet rich in {{w|cholesterol}} and {{w|atherosclerosis}}.<ref name="Demeester"/><ref>{{cite journal |last1=Konstantinov |first1=IE |last2=Jankovic |first2=GM |title=Alexander I. Ignatowski: a pioneer in the study of atherosclerosis. |journal=Texas Heart Institute journal |date=2013 |volume=40 |issue=3 |pages=246-9 |pmid=23914012 |pmc=}}</ref> ||
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| 1909 || Scientific development || {{w|alpha-Linolenic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || The exact structure of {{w|alpha-Linolenic acid}} is clarified by E. Erdmann et al.<ref name="alpha-Lino"/> This fatty acid is popular for preventing and treating diseases of the heart and blood vessels.<ref>{{cite web |title=Alpha-linolenic Acid: Health Benefits, Side Effects, Uses, Dose & Precautions |url=https://www.rxlist.com/alpha-linolenic_acid/supplements.htm |website=RxList |access-date=29 October 2021 |language=en}}</ref> ||
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| 1909 || Scientific development || {{w|Petroselinic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-11 fatty acid|ω−11]]))<ref>{{cite web |last1=Team |first1=EBI Web |title=petroselinic acid (CHEBI:28194) |url=https://www.ebi.ac.uk/chebi/searchId.do?chebiId=28194 |website=www.ebi.ac.uk |access-date=6 November 2021 |language=en}}</ref> || {{w|Petroselinic acid}} is first isolated from parsley seed oil.<ref>{{cite journal |last1=Vongerichten |first1=E. |last2=Köhler |first2=A. |title=Über Petroselinsäure, eine neue Ölsäure |journal=Berichte der deutschen chemischen Gesellschaft |date=April 1909 |volume=42 |issue=2 |pages=1638–1639 |doi=10.1002/cber.19090420232}}</ref>
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| 1910 || Scientific development || {{w|Cholesterol}}, {{w|atherosclerosis}} || || Windaus demonstrates that {{w|atherosclerotic}} lesions contain six times more free {{w|cholesterol}} and 20 times more esterified cholesterol compared with the healthy arterial wall.<ref name="Demeester"/> ||
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| 1911 || Industrial development || {{w|Shortening}} || {{w|Trans fat}} || After acquiring the US rights to Normann’s patent<ref name="Bridgwater"/>, {{w|Procter & Gamble}} introduces {{w|Crisco}} (short for crystallized cotton oil), the first food product that contains {{w|trans fat}}.<ref name="Encyclopedia Britannicav"/> It is a solid vegetable fat made by hydrogenating cottonseed oil, thus providing a low-cost, vegetable-derived alternative to butter and lard.<ref name="The queen of fats"/> This is the first all-vegetable household shortening with {{w|cottonseed oil}}.<ref name="O'Brien"/> || {{w|United States}}
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| 1911 || Industrial development || {{w|Soybean oil}} || || The first commercial quantities of {{w|soybean}}s are imported into the {{w|United States}} from {{w|Manchuria}} and are crushed for oil.<ref name="The queen of fats"/> || {{w|United States}}
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| 1912 || Scientific development || {{w|Lipid}} || || Jacob Rosenbloom and William J. Gies propose the substitution of "lipoid" by "lipin".<ref>{{cite journal | vauthors = Rosenbloom J, Gies WJ | title = Suggestion to teachers of biochemistry. I. A proposed chemical classification of lipins, with a note on the intimate relation between cholesterols and bile salts. | journal = Biochem. Bull. | date = 1911 | volume = 1 | pages = 51–6 | url = https://www.biodiversitylibrary.org/item/27005#page/87/mode/1up }}</ref> ||
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| 1912 || Scientific development || Fat-soluble {{w|vitamin A}} || || American biochemist {{w|Elmer McCollum}} at the University of Wisconsin begins using rats instead of humans in his experiments rather than cows and sheep. He finds the first fat-soluble vitamin, {{w|Vitamin A}}, and discovers that rats are healthier when they are fed {{w|butter}} rather than {{w|lard}}, as butter contains more Vitamin A.<ref name="Natural Healers">{{cite web |title=Read How Nutrition Careers Have Evolved Over Time |url=https://www.naturalhealers.com/blog/nutrition-history/ |website=Natural Healers |access-date=14 September 2021 |date=7 October 2016}}</ref>|| {{w|United States}}
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| 1912 || Industrial development || Hydrogenated fat || || Hydrogenated fats appear on the market. Today, they still remain the most important raw material in margarine and shortening.<ref name="Hamiltonvv">{{cite book |last1=Hamilton |first1=R. J. |title=Recent Advances in Chemistry and Technology of Fats and Oils |date=6 December 2012 |publisher=Springer Science & Business Media |isbn=978-94-011-7471-8 |url=https://books.google.com.ar/books/about/Recent_Advances_in_Chemistry_and_Technol.html?id=ixYrBgAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
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| 1913 || Scientific development || Cholesterol || || Anitschkow shows that it is possible to establish {{w|atherosclerosis}} in rabbits by feeding {{w|cholesterol}}. Since then virtually all research on atherosclerosis would be centered on both circulating cholesterol and dietary cholesterol.<ref name="Academic Pre">{{cite book |title=Guide to Nutritional Supplements |date=2 September 2009 |publisher=Academic Press |isbn=978-0-12-375661-9 |url=https://books.google.com.ar/books/about/Guide_to_Nutritional_Supplements.html?id=_VjxiHvdlOQC&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
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| 1913 || Scientific development || {{w|Arachidonic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || Dyerberg and Bang identify very small amounts of an unsaturated fatty acid contained in {{w|Eskimo}}s’ blood. They name it {{w|arachidonic acid}} because it is the same length as arachidic acid, a saturated fat found in peanuts, but has multiple double bonds.<ref name="The queen of fats"/> ||
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| 1913 || Scientific development || Fat-soluble {{w|vitamin A}} || || A “fat-soluble A” factor necessary to support life is identified. This factor is thought to cure {{w|xerophthalmia}} and {{w|rickets}}.<ref name="Lichtenstein"/> ||
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| 1913 || Scientific development || {{w|Cholesterol}}, {{w|atherosclerosis}} || || Russian pathologist {{w|Nikolay Anichkov}} demonstrates that cholesterol and fat gives rise to atherosclerotic changes in the vessel walls of rabbits, and atherosclerosis occurs by direct deposition of fat in the vascular wall.<ref name="Demeester"/><ref>{{cite journal |last1=Konstantinov |first1=IE |last2=Mejevoi |first2=N |last3=Anichkov |first3=NM |title=Nikolai N. Anichkov and his theory of atherosclerosis. |journal=Texas Heart Institute journal |date=2006 |volume=33 |issue=4 |pages=417-23 |pmid=17215962}}</ref> || {{w|Russia}}
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|-
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| 1918 || Scientific development || Fat as nutrient || || German physician Hans Aron in {{w|Breslau}} is arguably the first to suggest that fats have nutritional functions other than provision of food energy,<ref name="CRC Press">{{cite book |last1=Lees |first1=Robert S. |title=Omega-3 Fatty Acids in Health and Disease |date=24 July 2020 |publisher=CRC Press |isbn=978-1-000-14759-9 |url=https://books.google.com.ar/books?id=KC_wDwAAQBAJ&pg=PT93&lpg=PT93&dq=Omega-3+fatty+acid+%22in+1900..1950%22&source=bl&ots=FW5KE67oP2&sig=ACfU3U1nnFDYRh-Fki27f8UinWwQBz4EZQ&hl=en&sa=X&ved=2ahUKEwio_-3N5-rzAhU9pZUCHaU0BAoQ6AF6BAgWEAM#v=onepage&q=Omega-3%20fatty%20acid%20%22in%201900..1950%22&f=false |language=en}}</ref><ref name="Valenzuela">{{cite journal |last1=Uauy |first1=Ricardo |last2=Valenzuela |first2=Alfonso |title=Marine oils: the health benefits of n-3 fatty acids |journal=Nutrition |date=July 2000 |volume=16 |issue=7-8 |pages=680–684 |doi=10.1016/s0899-9007(00)00326-9}}</ref><ref>Aron H. Uber den nahrwert. Biochem Z 1918</ref> proposing that butter has a nutrient value that cannot be provided by other dietary components.<ref name="CRC Pr"/> This is the first evidence of the existence of fatty acids.<ref name="Essential fatty a">{{cite web |title=Essential fatty acids: definition, functions, and foods |url=https://www.tuscany-diet.net/2012/08/16/essential-fatty-acids/ |website=Tuscany Diet |access-date=29 October 2021 |date=16 August 2012}}</ref><ref name="Spectorv">{{cite journal |last1=Spector |first1=Arthur A. |last2=Kim |first2=Hee-Yong |title=Discovery of essential fatty acids |journal=Journal of Lipid Research |date=January 2015 |volume=56 |issue=1 |pages=11–21 |doi=10.1194/jlr.R055095}}</ref> || {{w|Germany}}
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|-
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| 1918 || Scientific development || Continuous centrifuge || || Continuous centrifuge is patented as a method to separate both solids and immiscible liquids.<ref name="Ahmad"/> ||
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|-
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| 1919 || Scientific development || Essential fatty acid || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] || Von Groer reports on two infants who were on skim milk diets for 9 months and had retarded growth, poor appetite, and possible respiratory infections. After their diets were supplemented with essential fatty acid for several months, these infants are found to be healthy, with a normal growth rate and weight gain.<ref name="CRC Press"/> ||
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|-
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| 1920 || Scientific development || {{w|Linoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || Meyerhof finds that {{w|linoleic acid}} and sulphur-rich proteins work together to help fatigued muscle recover rapidly from exercise and exertion.<ref name="Taubes"/> ||
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|-
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| 1920 || Scientific development || {{w|Fat interesterification}} || [[W:Interesterified fat|Interesterified]] || Wilhelm Norman, who also patented the catalytic hydrogenation of fatty acids, is granted a {{w|patent}} for the chemical interesterification of edible lipids.<ref>{{patent|DE|417,215|Norman|1920.}}</ref> ||
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|-
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| 1920 || Scientific development || {{w|Dimer acid}} || || {{w|Dimer acid}}s are discovered.<ref name="Ahmad"/> ||
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|-
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| 1920 || Scientific development || {{w|Lipid}} || || Bloor introduces a new classification for "lipoids": simple lipoids (greases and waxes), compound lipoids (phospholipoids and glycolipoids), and the derived lipoids (fatty acids, alcohols, sterols).<ref>{{cite journal |last1=Bloor |first1=W. R. |title=Outline of a classification of the lipoids |journal=Experimental Biology and Medicine |date=1 March 1920 |volume=17 |issue=6 |pages=138–140 |doi=10.3181/00379727-17-75}}</ref><ref>{{cite book | vauthors = Christie WW, Han X | date = 2010 | title = Lipid Analysis: Isolation, Separation, Identification and Lipidomic Analysis | publisher = The Oily Press | location = Bridgwater, England | url = https://books.google.com/books?id=XaggBQAAQBAJ | isbn = 9780857097866 }}</ref> ||
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|-
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| 1921 || Scientific development || Fatty acid (solid and liquid) || || The separation of solid and liquid fatty acids is first obtained.<ref name="Ahmad"/> ||
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|-
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| 1923 || Scientific development || {{w|Lipid}} || || The word ''{{w|lipid}}e'', which stems etymologically from Greek λίπος, ''lipos'' 'fat', is introduced by French pharmacologist {{w|Gabriel Bertrand}}.<ref>{{cite journal | vauthors = Bertrand G | year = 1923 | title = Projet de reforme de la nomenclature de Chimie biologique | url =https://books.google.com/books?id=qO0tAQAAIAAJ&pg=PA104 | journal = Bulletin de la Société de Chimie Biologique | volume = 5 | pages = 96–109 }}</ref> ||
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|-
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| 1923 || Scientific development || Continuous refining || || Continuous refining of fats is patented.<ref name="Ahmad"/> ||
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|-
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| 1924 || Scientific development || {{w|Lipid}} ({{w|chylomicron}}) || || Simon Henry Gage and Pierre Augustine Fish show that after a fatty meal human blood contains tiny particles (1 µm) called {{w|chylomicron}}s.<ref name="Kuijpers"/> ||
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|-
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| 1924 || Scientific development || {{w|Fat interesterification}} || || Industrial {{w|fat interesterification}} is patented.<ref name="Ahmad"/> ||
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|-
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| 1924 || Scientific development || {{w|Linoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || {{w|Albert Szent-Györgyi}} discovers that the system of sulphur-rich protein and {{w|linoleic acid}} takes up oxygen. However, he lacks the biochemical techniques to prove the identity of the components of this system conclusively.<ref name="Taubes"/> ||
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|-
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| 1925 || Scientific development || {{w|Palmitoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-7 fatty acid|ω−7]])) || E.F. Armstrong et al. establish the structure of {{w|palmitoleic acid}} as an unsaturated fatty acid.<ref name="Tuscany Dietve"/> ||
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|-
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| 1926 || Scientific development || Fatty acid oxidation || || German physiologist {{w|Otto Heinrich Warburg}} shows that a fatty substance is required to restart oxidation when it is low, as is the case in cancer and other degenerative conditions.<ref name="Taubes"/> ||
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|-
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| 1927 || Scientific development || Fat deficiency || || American scientists {{w|Herbert McLean Evans}} and George Oswald Burr demonstrate that, despite the addition of vitamins A, D, and E to the diet, a deficiency of fat severely affects both growth and reproduction of experimental animals.<ref name="Essential fatty a"/> || {{w|United States}}
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|-
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| 1927 || Scientific development || Fat classification || || A method for classifying fats is introduced.<ref name="Ahmad"/> ||
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|-
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| 1927 || Scientific development || {{w|Nervonic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-9 fatty acid|ω−9]]))<ref>{{cite web |title=Nervonic acid |url=https://pubchem.ncbi.nlm.nih.gov/compound/Nervonic-acid |website=pubchem.ncbi.nlm.nih.gov |access-date=7 November 2021 |language=en}}</ref> || M. Tsujimoto discovers {{w|nervonic acid}} in fats of {{w|Elasmobranchii}}, a subclass of {{w|chondrichthyes}} including fishes with fusiform (selachii like sharks from with its first name selacholeic acid) or flatten (batoidea like ray) bodies.<ref>{{cite web |title=Nervonic acid: structure, function, synthesis, sources |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/nervonic/ |website=Tuscany Diet |access-date=7 November 2021}}</ref>
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|-
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| 1928 || Scientfic development || {{w|Vaccenic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-7 fatty acid|ω−7]])) || Vaccenic acid is discovered in {{w|animal fat}}s and {{w|butter}}. Mammals convert it into {{w|rumenic acid}}, a {{w|conjugated linoleic acid}},<ref name=Bauman>{{Cite web |url=http://www.ansci.cornell.edu/bauman/human_health/index.htm |title=cis-9, trans-11 CLA - A Potent Anticarcinogen Found in Milk Fat |last=Bauman, Dale |archive-url=https://web.archive.org/web/20060907102559/http://www.ansci.cornell.edu/bauman/human_health/index.htm <!-- Bot retrieved archive --> |archive-date=2006-09-07 |access-date=2007-01-15}}</ref><ref>{{cite journal |last1=Banni |first1=Sebastiano |last2=Angioni |first2=Elisabetta |last3=Murru |first3=Elisabetta |last4=Carta |first4=Gianfranca |last5=Paola Melis |first5=Maria |last6=Bauman |first6=Dale |last7=Dong |first7=Yan |last8=Ip |first8=Clement |title=Vaccenic Acid Feeding Increases Tissue Levels of Conjugated Linoleic Acid and Suppresses Development of Premalignant Lesions in Rat Mammary Gland |journal=Nutrition and Cancer |date=September 2001 |volume=41 |issue=1-2 |pages=91–97 |doi=10.1080/01635581.2001.9680617}}</ref>
 +
where it shows anticarcinogenic properties.<ref name="lock">{{Cite journal |vauthors=Lock AL, Corl BA, Barbano DM, Bauman DE, Ip C |date=October 1, 2004 |title=The anticarcinogenic effect of trans-11 18:1 is dependent on its conversion to cis-9, trans-11 CLA by delta9-desaturase in rats |url=http://jn.nutrition.org/cgi/content/abstract/134/10/2698 |journal=J Nutr |volume=134 |issue=10 |pages=2698–704 |doi=10.1093/jn/134.10.2698 |pmid=15465769 |access-date=2007-01-15|doi-access=free }}</ref>
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|-
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| 1929 || Scientific development || Dietary fatty acid  || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]]) || George and Mildred Burr report that dietary fatty acid is required to prevent a deficiency disease that occurs in rats fed a fat-free diet. They conclude that fatty acids are essential nutrients and show that linoleic acid prevents the disease and is an essential fatty acid. The Burrs surmise that other unsaturated fatty acids are essential and subsequently demonstrate that {{w|linolenic acid}}, the {{w|omega-3 fatty acid}} analog of {{w|linoleic acid}}, is also an essential fatty acid.<ref name="Spector"/><ref name="Linus Paulin">{{cite journal |title=Essential Fatty Acids and Skin Health |journal=Linus Pauling Institute |date=7 November 2016 |url=https://lpi.oregonstate.edu/mic/health-disease/skin-health/essential-fatty-acids |language=en}}</ref><ref name="The queen of fats"/><ref name="CRC Pr"/> || {{w|United States}}
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|-
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| 1929 || Scientific development || {{w|Isomerization}} || || {{w|Isomerization}} during hydrogenation is reported.<ref name="Ahmad"/> ||
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|-
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| 1930 || Industrial development || {{w|Margarine}} || || The votator is patented. It is used for the continuous manufacture of {{w|margarine}}.<ref name="Ahmad"/> ||
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|-
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| 1930 || Scientific development || {{w|Prostaglandin}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || Gynecologists working with artificial insemination report that extracts of seminal fluid cause uterine tissue to contract. This observation leads to the discovery of the important cell messengers called ''prostaglandins'',<ref name="The queen of fats"/> which are first isolated from the prostate gland of sheep, from which they are given the name.<ref name="Taubes"/> ||
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|-
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| 1931 || Scientific development || {{w|X-ray crystallography}} || || X-ray diffraction is first used for fatty acids.<ref name="Ahmad"/> ||
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|-
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| 1931 || Industrial development || Fat-splitting || || Continuous fat-splitting is patented.<ref name="Ahmad"/> ||
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|-
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| 1931 || Industrial development || Edible oil || || {{w|Henry Ford}} plants 500 acres of {{w|soybean}}s in {{w|Dearborn, Michigan}}. After the {{w|Second World War}}, and after soybean production takes off, the United States would be able to export edible oils.<ref name="The queen of fats"/> || {{w|United States}}
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|-
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| 1932 || Industrial development || Spry vegetable shortening || || Spry vegetable shortening is introduced by {{w|Lever Brothers}}.<ref name="Ahmad"/> ||
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|-
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| 1933 || Scientific development || {{w|Gadoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-11 fatty acid|ω−11]])) || M.Takano clarifies the structure of {{w|gadoleic acid}}.<ref name="Gadoleic acid"/>
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|-
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| 1933 || Industrial development || Fatty acid distillation || || Distillation of fatty acids is patented.<ref name="Ahmad"/> ||
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|-
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| 1933 || Industrial development || {{w|Shortening}} || || {{w|Procter & Gamble}} implements a significant change for shortenings, adding mono- and diglycerides, which dramatically improves the performance of baking shortenings. This improvement is tempered somewhat for household shortenings because of the required all-purpose performance.<ref name="O'Brien"/> ||
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|-
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| 1933 || Industrial development || {{w|Shortening}} || || Superglycerinated high-ratio shortenings are introduced. This would bring significant changes for the baker and the shortening industry. These shortenings contain mono- and diglycerides, which contribute to a finer dispersion of fat particles in cake batters, causing a greater number of smaller-sized fat globules that strengthen the batters.<ref name="O'Brien">{{cite book |last1=O'Brien |first1=Richard D. |title=Fats and Oils: Formulating and Processing for Applications, Third Edition |date=5 December 2008 |publisher=CRC Press |isbn=978-1-4200-6167-3 |url=https://books.google.com.ar/books/about/Fats_and_Oils.html?id=3wpHj3mvra8C&source=kp_book_description&redir_esc=y |language=en}}</ref><ref name="Ahmad"/> ||
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|-
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| 1934 || Scientific development || {{w|Oleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-9 fatty acid|ω−9]])) || {{w|Oleic acid}} is synthesized for the first time by C.R. Noller et al.<ref name="Oleic acid"/> Today, studies suggest that oleic acid reduces inflammation and may even have beneficial effects on genes linked to {{w|cancer}}.<ref>{{cite web |title=11 Proven Benefits of Olive Oil |url=https://www.healthline.com/nutrition/11-proven-benefits-of-olive-oil |website=Healthline |access-date=29 October 2021 |language=en |date=14 September 2018}}</ref> ||
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|-
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| 1934 || Industrial development || Oil seed–crushing || || The first continuous countercurrent solvent extraction plant in the United States is opened by Archer Daniels Midland Company. The plant uses hexane as the solvent and a 100-tons-per-day Hildebrandt extractor from Germany. By the late 1940s, much of the oil seed–crushing industry would evolove from screw presses to far more efficient solvent extraction.<ref name="The queen of fats"/> || {{w|United States}}
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|-
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| 1934 || Scientific development || Centrifugal refining || || Centrifugal refining is introduced.<ref name="Ahmad"/> ||
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|-
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| 1936 || Industrial development || Fatty acid distillation || || Distillation of fatty acids is patented.<ref name="Ahmad"/> ||
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|-
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| 1936 || Industrial development || {{w|Shortening}} || || Primex shortening is marketed.<ref name="Ahmad"/> An all-purpose shortening with a neutral flavor and buttery appearance, it is used for donut frying, pie doughs, cookies, and other bakery applications.<ref>{{cite web |title=Primex All Purpose Vegetable Shortening - For Frying |url=https://www.bakersauthority.com/products/stratas-primex-finest-all-purpose-vegetable-shortening-for-frying-50-lb-box |website=bakersauthority.com |access-date=30 November 2021}}</ref> ||
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|-
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| 1937 || Scientific development || {{w|Linoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || Conjugation of linoleic acid by alkali is obtained.<ref name="Ahmad"/> ||
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|-
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| 1938 || Scientific development || {{w|Linoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || George and Mildred Burr are unable to prove that linoleic acid is essential for humans. This question would remain unresolved until the 1960s.<ref name="The queen of fats"/> ||
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|-
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| 1938 || Scientific development || {{w|Monoglyceride}}, {{w|diglyceride}} || || The first U.S. patents for mono- and diglycerides is granted.<ref name="Demeester">{{cite book |last1=Watson |first1=Ronald Ross |last2=Demeester |first2=Fabien |title=Handbook of Lipids in Human Function: Fatty Acids |date=9 December 2015 |publisher=Elsevier |isbn=978-1-63067-035-1 |url=https://books.google.com.ar/books/about/Handbook_of_Lipids_in_Human_Function.html?id=jdM4CgAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> || {{w|United States}}
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|-
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| 1938 || Scientific development || Santalbic acid || || Santalbic acid is first discovered in the seeds of ''{{w|Santalum album}}''.<ref name="Ahmadvvddvd"/><ref>{{cite journal |last1=Aitzetmüller |first1=Kurt |title=Santalbic acid in the plant kingdom |journal=Plant Systematics and Evolution |date=November 2012 |volume=298 |issue=9 |pages=1609–1617 |doi=10.1007/s00606-012-0678-5}}</ref> ||
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|-
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| 1939 || Scientific development || {{w|Linoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || The exact structure of {{w|linoleic acid}} is clarified by English chemist {{w|Thomas Percy Hilditch}} et al.<ref name="Linoleic acid: defini"/> || {{w|United Kingdom}}
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|-
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| 1940 || Industrial development || Fatty acid || || M.F. Bengen first describes the technique of formation of crystalline urea fatty acid complexes, which today is a well-known technique to fractionate fatty acids and is used to separate straight chain compounds found in milk.<ref name="Ahmadvvddvd"/><ref>{{cite journal |last1=Bengen |first1=M. F. |title=Mein Weg zu den neuen Harnstoff-Einschluß-Verbindungen |journal=Angewandte Chemie |date=7 May 1951 |volume=63 |issue=9 |pages=207–208 |doi=10.1002/ange.19510630903}}</ref> || {{w|Germany}}
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|-
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| 1940 || Industrial development || Fatty amines/nitriles || || Fatty amines/nitriles are patented.<ref name="Ahmad"/> ||
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|-
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| 1940 || Literature || Oil (chemical analysis) || || {{w|Thomas Percy Hilditch}} publishes ''The Chemical Composition of Natural Oils'', which would be considered a seminal and influential contribution to chemical analysis of oils.<ref name="Ahmad"/> ||
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|-
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| 1945 || Literature || Oil || || American chemist {{w|Alton E. Bailey}} publishes ''Industrial Oil and Fat Products''.<ref name="Ahmad"/> || {{w|United States}}
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|-
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| 1945 || Scientific development || Fatty acid displacement analysis || || Displacement analysis for fatty acids is reported.<ref name="Ahmad"/> ||
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|-
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| 1945 || Scientific development || Fatty acid oxidation || || Relative rates of fatty acid oxidation is reported.<ref name="Ahmad"/> ||
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|-
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| 1947 || Literature || Natural fat || || {{w|Thomas Percy Hilditch}} publishes ''The chemical constitution  of natural fats'', which would become famous. Hilditch claims that “unanimity has not yet been reached in the terminology to be adopted in classifying the various types of naturally occurring compounds in which fatty acids are present … even a collective title for the whole group is not completely settled“.<ref name="cyberlipid.gerli.com">{{cite web |title=Description of various lipids {{!}} Cyberlipid |url=http://cyberlipid.gerli.com/description/ |website=cyberlipid.gerli.com |access-date=16 October 2021}}</ref> || {{w|United Kingdom}}
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|-
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| 1947 || Industrial development || {{w|Shortening}} || || Swiftning shortening is marketed.<ref name="Ahmad"/> ||
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|-
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| 1948 || Industrial development || {{w|Fat interesterification}} || || Directed interesterification is reported.<ref name="Ahmad"/> This process would be put into successful factory use on {{w|lard}} shortenings. Directed interesterification increases the fraction of high melting solids (trisaturated glycerides) and decreases the fraction of intermediate melting glycerides (disaturated glycerides) in lard.<ref>{{cite journal |last1=Hawley |first1=H. K. |last2=Holman |first2=G. W. |title=Directed interesterification as a new processing tool for lard |journal=Journal of the American Oil Chemists Society |date=1 January 1956 |volume=33 |issue=1 |pages=29–35 |doi=10.1007/BF02638347 |url=https://link.springer.com/article/10.1007/BF02638347 |language=en |issn=1558-9331}}</ref> ||
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|-
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| 1950 || Market trend || {{w|Western pattern diet}} || || A broad dietary shift from animal fats begins, favoring liquid oil products. U.S. consumers become increasingly aware of the role of fats and oils in {{w|coronary disease}}, and start replacing solid shortenings with liquid oils.<ref name="O'Brien"/> || {{w|United States}}
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|-
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| 1950 || Scientific development || {{w|Obesity}} || || Genetically obese mice are first described.<ref name="Pond">{{cite book |last1=Pond |first1=Caroline M. |title=The Fats of Life |date=13 August 1998 |publisher=Cambridge University Press |isbn=978-0-521-63577-6 |url=https://books.google.com.ar/books/about/The_Fats_of_Life.html?id=Usto_MdMXYMC&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
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|-
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| 1950 || Scientific development || Fat melting/solidification || || Bailey publishes melting and solidification of fats.<ref name="Ahmad"/> ||
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|-
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| 1950 || Scientific development || {{w|Linoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || American biochemist {{w|Ralph Holman}} and a graduate student discover that {{w|linoleic acid}} is the precursor of {{w|arachidonic acid}} and that {{w|alpha-Linolenic acid}} is the precursor of {{w|docosahexaenoic acid}} and {{w|eicosapentaenoic acid}}.<ref name="The queen of fats"/> || {{w|United States}}
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|-
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| 1950 || Scientific development || {{w|Mycolic acid}} || || Asselineau and Lederer describe the first structure of mycolic acids as α-branched, β-hydroxylated long-chain fatty acids, a feature that confers to the molecule the property to be cleaved at high temperature into a "mero"aldehyde main chain, also called "meromycolic" chain, and a "fatty acid", a reaction similar to a reverse Claisen type condensation.<ref name="Biogenesis of">{{cite book |title=Biogenesis of fatty acids, lipids and membranes |date=2018 |location=Cham |isbn=9783319436760}}</ref><ref>{{cite journal |last1=Asselineau |first1=J. |last2=Lederer |first2=E. |title=Structure of the Mycolic Acids of Mycobacteria |journal=Nature |date=November 1950 |volume=166 |issue=4227 |pages=782–783 |doi=10.1038/166782a0 |url=https://www.nature.com/articles/166782a0 |language=en |issn=1476-4687}}</ref> ||
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|-
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| 1950 || Scientific development || {{w|Linoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || {{w|Linoleic acid}} is synthesized by British chemist {{w|Ralph Raphael}} and German-born British chemist {{w|Franz Sondheimer}}.<ref name="Linoleic acid: defini"/> || {{w|United Kingdom}}
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|-
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| 1950–1970 || Market trend || Edible vegetable oils || || In 1950, the food fat marketed in the United States is split approximately equally between animal fats (lard, tallow and butter) and edible vegetable oils. By 1970, edible vegetable oils would account for three-fourths of the total and animal fats only one-fourth.<ref>{{cite web |title=What are fatty acids and their derivatives? |url=https://www.tdx.cat/bitstream/handle/10803/8595/10.pdf?sequence=13 |website=tdx.cat}}</ref> || {{w|United States}}
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|-
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| 1951 || Scientific development || {{w|Chromatography}} || || English scientists {{w|Archer Martin}} and A. J. James perfect the first gas-liquid chromatograph, a powerful analytical and purification tool that enables scientists to separate the many different fatty acids in tissues and foods. For this work, they are later awarded the {{w|Nobel Prize in Chemistry}} in 1952.<ref name="The queen of fats"/><ref name="Ahmad"/> || {{w|United Kingdom}}
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|-
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| 1951 || Scientific development || {{w|Linolenic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Herbert Dutton proves that {{w|linolenic acid}} is the cause of the off flavors and odors in {{w|soybean oil}}. This would lead to the expanded use of partial or selective hydrogenation to eliminate this fat.<ref name="The queen of fats"/> ||
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|-
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| 1952 || Scientific development || {{w|Eicosapentaenoic acid}}, {{w|docosahexaenoic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || An early epidemiological study conducted in Norway finds a lower incidence of {{w|multiple sclerosis}} in coastal communities with a high consumption of fish (high {{w|eicosapentaenoic acid}} and {{w|docosahexaenoic acid}} intakes) compared to communities with a high consumption of animal fat.<ref name="Demeester"/> || {{w|Norway}}
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|-
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| 1953 || Scientific development || {{w|Sterol}} || || The plasma cholesterol-lowering properties of plant {{w|sterol}}s are described by Pollak.<ref name="Phytosterol este"/> ||
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|-
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| 1953 || Scientific development || {{w|Cardiovascular disease}} || || Ancel Keys publishes a chart which directly correlates the incidence of heart disease with the total fat intake of a population.<ref name="The queen of fats"/> ||
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|-
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| 1955 || Scientific development || {{w|Triglyceride}} || || Synthesis of mixed acid triglyceride is introduced.<ref name="Ahmad"/> ||
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|-
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| 1955 || Scientific development || {{w|Trans fat}} source || {{w|Trans fat}} || {{w|Trans fat}}ty acids are found to be naturally present in {{w|ruminant}}s but not nonruminants.<ref name="The queen of fats"/> ||
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|-
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| 1955 || Industrial development || {{w|Shortening}} || || Golden Fluffo shortening is marketed.<ref name="Ahmad"/> ||
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|-
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| 1956 || Scientific development || Fat distribution || || French physician Jean Vague becomes the first to show the importance of fat distribution in relation to various diseases, describing what he terms ‘android’ and ‘gynoid’ types of obesity.<ref>{{cite journal |last1=Ross |first1=Robert |last2=Neeland |first2=Ian J. |last3=Yamashita |first3=Shizuya |last4=Shai |first4=Iris |last5=Seidell |first5=Jaap |last6=Magni |first6=Paolo |last7=Santos |first7=Raul D. |last8=Arsenault |first8=Benoit |last9=Cuevas |first9=Ada |last10=Hu |first10=Frank B. |last11=Griffin |first11=Bruce A. |last12=Zambon |first12=Alberto |last13=Barter |first13=Philip |last14=Fruchart |first14=Jean-Charles |last15=Eckel |first15=Robert H. |last16=Matsuzawa |first16=Yuji |last17=Després |first17=Jean-Pierre |title=Waist circumference as a vital sign in clinical practice: a Consensus Statement from the IAS and ICCR Working Group on Visceral Obesity |journal=Nature Reviews Endocrinology |date=March 2020 |volume=16 |issue=3 |pages=177–189 |doi=10.1038/s41574-019-0310-7 |url=https://www.nature.com/articles/s41574-019-0310-7 |language=en |issn=1759-5037}}</ref> || {{w|France}}
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|-
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| 1956 || Scientific development || {{w|Chromatography}} || || Stahl advances thin-layer chromatography.<ref name="Ahmad"/> ||
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|-
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| 1956 || Scientific development || {{w|alpha-Linolenic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || {{w|alpha-Linolenic acid}} is synthesized by Nigama and Weedon.<ref name="alpha-Lino"/> This fatty acid has an antithrombotic effect. It has a role as a micronutrient, a nutraceutical and a mouse metabolite.<ref>{{cite web |title=Linolenic acid |url=https://pubchem.ncbi.nlm.nih.gov/compound/Linolenic-acid |website=pubchem.ncbi.nlm.nih.gov |access-date=29 October 2021 |language=en}}</ref> ||
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|-
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| 1957 || Scientific development || {{w|Lipid}} || || Kummerow and colleagues<ref>{{cite journal |last1=Conner |first1=Robert L. |title=Interaction of Stigmasterol and 2,4-Dinitrophenol in the Growth of Tetrahymena piriformis |journal=Science |date=11 October 1957 |volume=126 |issue=3276 |pages=698–698 |doi=10.1126/science.126.3276.698-a}}</ref> find that lipid extracts of tissue specimens from 24 human subjects who died of heart disease contain ≤12.2% trans fatty acids in their adipose tissue, 14.4% in the liver, 9.3% in heart tissue, 8.8% in aortic tissue, and 8.8% in atheroma.<ref name="Kersten">{{cite journal |last1=Oteng |first1=Antwi-Boasiako |last2=Kersten |first2=Sander |title=Mechanisms of Action of trans Fatty Acids |journal=Advances in Nutrition |date=1 May 2020 |volume=11 |issue=3 |pages=697–708 |doi=10.1093/advances/nmz125}}</ref> ||
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|-
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| 1957 || Scientific development || {{w|Prostaglandin}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || {{w|Sune Bergström}} isolates the first {{w|prostaglandin}}s.<ref name="The queen of fats"/> These are lipid autacoids derived from {{w|arachidonic acid}}.<ref>{{cite journal |last1=Ricciotti |first1=Emanuela |last2=FitzGerald |first2=Garret A. |title=Prostaglandins and Inflammation |journal=Arteriosclerosis, Thrombosis, and Vascular Biology |date=May 2011 |volume=31 |issue=5 |pages=986–1000 |doi=10.1161/ATVBAHA.110.207449}}</ref>  ||
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|-
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| 1957 || Industrial development || {{w|Extrusion}} || || Extrusion is developed and patented as a method for microencapsulation of {{w|polyunsaturated fatty acid}}-rich oil emulsions. Extrusion process is found to produce less porous material compared to spray drying; however, it increases production cost as compared to spray drying and use of screw extruders at high pressure are highly detrimental to omega-3 fatty acids.<ref name="Zanwar"/> ||
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|-
 +
| 1958 || Scientific development || Essential fatty acid deficiency || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] || Essential fatty acid deficiency in humans is first described by Arild Hansen et al., in infants fed a milk-based formula lacking them.<ref name="Essential fatty a"/> ||
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|-
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| 1959 || Scientific development || {{w|Mead acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-9 fatty acid|ω−9]]))<ref>{{cite web |title=Mead acid |url=https://pubchem.ncbi.nlm.nih.gov/compound/5312531#:~:text=Mead%20Acid%20is%20a%20polyunsaturated,bonds%20in%20the%20cis%2D%20configuration.&text=It%20is%20a%20conjugate%20acid,%2C8Z%2C11Z)%2Dicosatrienoate. |website=pubchem.ncbi.nlm.nih.gov |access-date=7 November 2021 |language=en}}</ref> || James F. Mead at {{w|UCLA}} first identifies what would be named mead acid.<ref>{{cite web |title=Mead acid: chemical structure, synthesis, and metabolism |url=https://www.tuscany-diet.net/lipids/list-of-fatty-acids/mead/ |website=Tuscany Diet |access-date=29 October 2021}}</ref> || {{w|United States}}
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|-
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| 1959 || Scientific development || {{w|Microemulsion}} || || Microemulsion is first prepared by Hoar and Schulman, by dispersing oil in an aqueous solution of surfactant where alcohol is used as cosurfactant. This forms stable, transparent oil-in-water formulation. The term "microemulsion" is coined by Schulman et al. in this year.<ref name="Zanwar"/> ||
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|-
 +
| 1960 || Scientific development || {{w|Glyceride}} || || A theory of glyceride structures is proposed.<ref name="Ahmad"/> ||
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|-
 +
| 1960 || Scientific development || Trienoic/tetraenoic acid ratio || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]]) || {{w|Ralph Holman}} introduces the concept of the trienoic/tetraenoic acid ratio as an indicator of the severity of essential fatty acid deficiency in rats. He later demonstrates its applicability to other species. A ratio of 0.4 or greater is considered indicaive of EFA deficiency. Later in 1970, Holman would suggest that the upper limit of normality is a ratio of 0.2 for humans.<ref name="CRC Press"/><ref name="The queen of fats"/> ||
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|-
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| 1961 || Industrial development || {{w|Hydrogenation}} || || Hydrogenated winterized {{w|soybean oil}} is marketed.<ref name="Ahmad"/> ||
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|-
 +
| 1963 || Scientific development || Essential fatty acid || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]]) || Arild Hansen and colleagues demonstrate for the first time that humans require the dietary intake of certain polyunsaturated fatty acids (PUFAs) that the body is unable to synthesize. These PUFAs are therefore referred to as essential fatty acids.<ref name="Gómez Candela">{{cite journal |last1=Gómez Candela |first1=C. |last2=Bermejo López |first2=L. M. ª |last3=Loria Kohen |first3=V. |title=Importancia del equilibrio del índice omega-6/omega-3 en el mantenimiento de un buen estado de salud: Recomendaciones nutricionales |journal=Nutrición Hospitalaria |date=April 2011 |volume=26 |issue=2 |pages=323–329 |url=https://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S0212-16112011000200013 |issn=0212-1611}}</ref> ||
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|-
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| 1963 || Policy || {{w|Fatty acid}} || || The Codex Alimentarius Commission (Codex) is created to develop food standards, guidelines and related texts such as codes of practice under the Joint Food and Agriculture Organization/World Health Organisation Food Standards Programme. Under the Guidelines for Nutrition Labelling of Codex, trans fatty acids must be declared where the amount and/or type of fatty acids or the amount of cholesterol is declared on a label.<ref name="Bridgwater"/> ||
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|-
 +
| 1964 || Scientific development || {{w|Fatty acid}} || || {{w|Konrad Bloch}} and {{w|Feodor Lynen}} share the {{w|Nobel Prize in Physiology or Medicine}} for their discoveries concerning some of the mechanisms and methods of regulation of cholesterol and {{w|fatty acid metabolism}}.<ref>{{Cite web|url=https://www.nobelprize.org/nobel_prizes/medicine/laureates/1964/|title=The Nobel Prize in Physiology or Medicine, 1964|publisher==Nobel Prize, Nobel Media }}</ref> ||
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|-
 +
| 1964 || Literature || Fatty acid (chemistry) || || Klare Markley publishes ''Fatty acids'', an extensive five volume set on the chemistry of fatty acids.<ref name="Ahmad">{{cite book |last1=Ahmad |first1=Moghis U. |title=Fatty Acids: Chemistry, Synthesis, and Applications |date=21 July 2017 |publisher=Elsevier |isbn=978-0-12-809544-7 |url=https://books.google.com.ar/books/about/Fatty_Acids.html?id=QioUDgAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
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|-
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| 1964 || Scientific development || {{w|Prostaglandin}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || Swedish biochemist {{w|Sune Bergström}} and Dutch chemist {{w|David Adriaan van Dorp}} demonstrate that prostaglandins are made from twenty-carbon fatty acids, such as [[w:Arachidonic acid|arachidonic]] and {{w|eicosapentaenoic acid}}.<ref name="The queen of fats"/> Thanks to these scientists, fatty acids are found to be the precursors for the synthesis of {{w|prostaglandin}}s.<ref name="Essential fatty a"/> ||
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|-
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| 1964 || Scientific development || Fat classification || [[w:unsaturated fat|Unsaturated]] || {{w|Ralph Holman}} proposes a new system for naming the different families of unsaturated fatty acids, the omega system, and hypothesizes that the different families compete for the same elongation and desaturation enzymes.<ref name="The queen of fats"/> ||
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|-
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| 1965 || Scientific development || {{w|Cholesterol}} || ||  Keys et al. and Hegsted et al. independently develop formulae for predicting changes in cholesterol levels based on changes in the diet. Their formulae are based upon changes in quantity of saturated and unsaturated fat and in dietary cholesterol.<ref name="Academic Pre"/> ||
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|-
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| 1965 || Recommendation || {{w|Hydrogenated fat}} || || The {{w|American Heart Association}} deletes the recommendation to decrease the intake of hydrogenated fats and removes a negative reference to the trans fatty acids. The revised statement encourages the consumption of partially hydrogenated fats.<ref name="Enig"/> || {{w|United States}}
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|-
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| 1965 || Scientific development || {{w|Saturated fat}}, {{w|cholesterol}} || [[w:Saturated fat|Saturated]] || An early study published on the ''American Journal of Clinical Nutrition'' explains the link between saturated fat in the diet and the concentration of cholesterol in the blood.<ref>{{cite journal |last1=Hegsted |first1=D. M. |last2=Mcgandy |first2=R. B. |last3=Myers |first3=M. L. |last4=Stare |first4=F. J. |title=Quantitative Effects of Dietary Fat on Serum Cholesterol in Man |journal=The American Journal of Clinical Nutrition |date=1 November 1965 |volume=17 |issue=5 |pages=281–295 |doi=10.1093/ajcn/17.5.281}}</ref><ref name="Belluz"/> || {{w|United States}}
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|-
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| 1966 || Scientific development || {{w|Monoglyceride}} || || Larsson first describes the crystal structure of pure, racemic 1-monoglycerides, which would be later reviewed by Small in 1986 and Larsson in 1994.<ref name="sdgsdgrdgre">{{cite book |last1=Garti |first1=Nissim |last2=Sato |first2=Kiyotaka |title=Crystallization Processes in Fats and Lipid Systems |date=20 July 2001 |publisher=CRC Press |isbn=978-1-4822-7088-4 |url=https://books.google.com.ar/books/about/Crystallization_Processes_in_Fats_and_Li.html?id=QWK1DwAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
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|-
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| 1967 || Scientific development || Omega-3 fatty acid source || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || {{w|Trout}} are the first animal to be recognized as requiring omega-3 fatty acids, as those raised with corn oil as the only fat in their diet develop a shock syndrome and suffer a high mortality.<ref name="The queen of fats"/> ||
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| 1967 || Scientific development || Fatty acid || || Gunstone claims that over 300 fatty acids are known in nature at this time.<ref name="Blackwell Pub">{{cite book |title=Trans fatty acids |date=2008 |publisher=Blackwell Pub |location=Oxford |isbn=1405156910}}</ref> ||
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| 1968 || Scientific development || Saturated fat source || || Michael Crawford shows that the fats of domestic animals are much more saturated than the fats of wild animals.<ref name="The queen of fats"/> ||
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|-
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| 1968 || Scientific development || Saturated monoglyceride || || Krog and Larsson first publish binary phase diagrams of distilled saturated monoglycerides based on hydrogenated lard.<ref name="sdgsdgrdgre"/> ||
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| 1969 || Industrial development || {{w|Margarine}} || || Trans-free margarine is patented, mentioning Fondu and Willems as its inventors. It describes a hardstock that is obtained by interesterifying palm stearin with a {{w|lauric oil}}. However, neither of these components is hydrogenated, and consequently, the interesterification product contains quite a large proportion of {{w|triglyceride}}s that do not contribute to blend consistency but nevertheless introduce saturated fatty acids.<ref name="Blackwell Pub"/> ||
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| 1970 || Scientific development || {{w|Cardiovascular disease}} || [[w:Saturated fat|Saturated]] || A study analizing populations in seven countries associates diets high in saturated fat intake with cholesterol, and cardiovascular disease.<ref name="Belluz"/><ref>{{cite journal |title=Coronary heart disease in seven countries. Summary |journal=Circulation |date=April 1970 |volume=41 |issue=4 Suppl |pages=I186–195 |url=https://pubmed.ncbi.nlm.nih.gov/5442782/ |issn=0009-7322}}</ref> This study would be later considered deeply flawed, with more recent consensus favoring saturated fats.<ref name="Everyone W"/> ||
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| 1972 || Scientific development || {{w|Docosahexaenoic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Michael Crawford shows that {{w|docosahexaenoic acid}} is important to brain function.<ref name="The queen of fats"/> ||
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| 1972 || Scientific development || Methyl oleate || || Self-metathesis of methyl oleate is first reported. It gives dimethyl octadec-9-ene-1,18-dioate and octadec-9-ene as products.<ref>{{cite journal |last1=Dam |first1=P. B. van |last2=Mittelmeijer |first2=M. C. |last3=Boelhouwer |first3=C. |title=Metathesis of unsaturated fatty acid esters by a homogeneous tungsten hexachloride–tetramethyltin catalyst |journal=Journal of the Chemical Society, Chemical Communications |date=1 January 1972 |issue=22 |pages=1221–1222 |doi=10.1039/C39720001221 |url=https://pubs.rsc.org/en/content/articlelanding/1972/c3/c39720001221 |language=en |issn=0022-4936}}</ref><ref name="Ahmadvvddvd"/> ||
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| 1972 || Scientific development || {{w|Fish oil}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Hans Olaf Bang and Jørn Dyerberg report that compared to Danes, [[w:Greenlandic Inuit|Greenland Eskimos]] have lower levels of heart disease —and of serum cholesterol and triglycerides, despite a diet rich in fat and blubber. This is associated with polyunsaturated fatty acid in {{w|fish oil}}.<ref name="The queen of fats"/> ||
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| 1973 || Scientific development || {{w|Prostaglandin}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || American nutritional biochemist {{w|William E.M. Lands}} reports that {{w|prostaglandin}}s made from omega-3 fatty acids are much less inflammatory than those made from omega-6 fatty acids, a finding that would lead to the use of fish oil in treating patients with arthritis, ulcerative colitis, Crohn’s disease, dysmenorrhea, and other inflammatory disorders.<ref name="The queen of fats"/> || {{w|United States}}
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| 1973 || Policy || {{w|Whaling}} || || Commercial whaling is banned in the United States. As a result, jojoba oil (a long-chain wax ester) is brought to commercialization as a result of research done at the {{w|National Center for Agricultural Utilization Research}}.<ref name="Ahmadvvddvd"/> || {{w|United States}}
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| 1974 || Scientific development || Metathesis || || Van Dam et al. conduct the first successful application of metathesis chemistry to lipids.<ref name="Ahmad"/><ref>{{cite journal |last1=Van Dam |first1=P. B. |last2=Mittelmeijer |first2=M. C. |last3=Boelhouwer |first3=C. |title=Homogeneous catalytic metathesis of unsaturated fatty esters: New synthetic method for preparation of unsaturated mono-and dicarboxylic acids |journal=Journal of the American Oil Chemists Society |date=1 September 1974 |volume=51 |issue=9 |pages=389–392 |doi=10.1007/BF02635013 |url=https://link.springer.com/article/10.1007/BF02635013 |language=en |issn=1558-9331}}</ref> ||
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| 1975 || Policy || {{w|Saturated fat}}, polyunsaturated fatty acid, {{w|cholesterol}} || [[w:Saturated fat|Saturated]], [[w:Unsaturated fat|Unsaturated]] || Guidelines for voluntary nutrition labeling start taking effect in the {{w|United States}}. Foods are labeled on the basis of total, saturated (lauric, myristic, palmitic, and stearic acids), and polyunsaturated fatty acids and cholesterol content. These standards are established based on the observed association between saturated fat intake and risk of {{w|cardiovascular disease}}.<ref name="Lichtenstein"/> || {{w|United States}}
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| 1975 || Market trend || Fat, oil || || The world market for edible fats and oils surpasses 41 million tons in this year, with products sold for almost 29 billion dollars.<ref name="Taubes">{{cite book |last1=Taubes |first1=Gary |title=Good Calories, Bad Calories: Fats, Carbs, and the Controversial Science of Diet and Health |date=2008 |publisher=Anchor Books |isbn=978-1-4000-3346-1 |url=https://books.google.com.ar/books/about/Good_Calories_Bad_Calories.html?id=Xdm40JUD9HwC&redir_esc=y |language=en}}</ref> || Worldwide
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| 1975 || Scientific development || {{w|Docosahexaenoic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Robert Anderson identifies {{w|docosahexaenoic acid}} as a key part of the eye’s photoreceptor.<ref name="The queen of fats"/> ||
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| 1976 || Scientific development || {{w|Cardiovascular disease}} || [[w:saturated fat|Saturated]], {{w|trans fat}} || The {{w|Nurses' Health Study}} is incepted as a {{w|cohort study}} following 120,000 female nurses. The researchers would analyze data from 900 coronary events from the study's [[w:statistical population|population]] during 14 years of followup, and would determine that a nurse's {{w|coronary artery disease}} (CAD) risk roughly doubled ({{w|relative risk}} of 1.93, {{w|confidence interval}}: 1.43 to 2.61) for each 2% increase in trans fat calories consumed (instead of carbohydrate calories). By contrast, for each 5% increase in saturated fat calories (instead of carbohydrate calories) there was a 17% increase in risk ({{w|relative risk}} of 1.17, [[w:confidence interval|CI]]: 0.97 to 1.41). The replacement of saturated fat or trans unsaturated fat by cis (unhydrogenated) unsaturated fats is associated with larger reductions in risk than an isocaloric replacement by carbohydrates.<ref name=hu1997/> The researchers would also report on the benefits of reducing trans fat consumption. Replacing 2% of {{w|food energy}} from trans fat with non-trans {{w|unsaturated fat}}s more than halves the risk of CAD (53%). By comparison, replacing a larger 5% of food energy from saturated fat with non-trans unsaturated fats reduces the risk of CAD by 43%. This study provides the major evidence for the effect of trans fat on {{w|coronary artery disease}}.<ref name=hu1997>{{cite journal | vauthors = Hu FB, Stampfer MJ, Manson JE, Rimm E, Colditz GA, Rosner BA, Hennekens CH, Willett WC | display-authors = 6 | title = Dietary fat intake and the risk of coronary heart disease in women | journal = The New England Journal of Medicine | volume = 337 | issue = 21 | pages = 1491–9 | date = November 1997 | pmid = 9366580 | doi = 10.1056/NEJM199711203372102 }}</ref> || {{w|United States}}   
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| 1976 || Scientific development || {{w|Lipid hypothesis}} || || A summary of the {{w|lipid hypothesis}} describes it as: "measures used to lower the plasma lipids in patients with {{w|hyperlipidemia}} will lead to reductions in new events of {{w|coronary heart disease}}".<ref>{{cite journal | author = Ahrens EH Jr | date = Jul 1976 | title = The management of hyperlipidemia: whether, rather than how | journal = Ann Intern Med | volume = 85 | issue = 1| pages = 87–93 | pmid = 779574 | doi=10.7326/0003-4819-85-1-87}}</ref> ||
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| 1977 || Recommendation || {{w|Baby Formula}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:Omega-3 fatty acid|ω-3]], [[w:Omega-6 fatty acid|ω-6]])) || The {{w|World Health Organization}} issues a repport concluding that infant formulas should match the milk from well-nourished mothers with respect both to parent and long-chain fatty acids and to the balance of the omega-6 and omega-3 families.<ref name="The queen of fats"/> ||
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| 1977 || Recommendation || Dietary guideline || || The first edition of The Dietary Goals for the United States is published in attempts to reduce incidence of diet-related diseases such as {{w|cardiovascular disease}} and {{w|diabetes}}. The report suggests Americans should eat less high-fat red meat, eggs, and dairy and more plants and other {{w|carbohydrate}}s.<ref name="Belluz"/><ref>{{cite web |title=How the U.S. Low-Fat Diet Recommendations of 1977 Contributed to the Declining Health of Americans |url=https://opencommons.uconn.edu/cgi/viewcontent.cgi?article=1482&context=srhonors_theses#:~:text=In%201977%2C%20the%20first%20edition,as%20the%20most%20instrumental%20factor. |website=opencommons.uconn.edu |access-date=2 December 2021}}</ref> || {{w|United States}}
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| 1977 || Industrial development || {{w|Linoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:omega-6 fatty acid|ω−6]])) || United States {{w|FDA}} approves of Intralipid, a linoleic acid-rich lipid emulsion made with soybean oil, phospholipids, and glycerol. This marks the beginning of parenteral use of fats in the United States.<ref name="CRC Pr"/> || {{w|United States}}
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| 1977 || Industrial development || Enzymatic interesterification || || Enzymatic interesterification is patented. However, its early use is very limited until later when immobilized enzymes become affordable for large-scale industrial use. Today, enzymatic interesterification is widely used for the production of low-TFA plastic fats for numerous applications.<ref name="Bridgwater"/> ||
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| 1978 || Scientific development || Eicosapentaenoic acid || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || J.Dyerberg et al. suggest that eicosapentaenoic acid, an omega-3 fat, plays a role in the prevention of {{w|thrombosis}} and {{w|atherosclerosis}}.<ref name="The queen of fats"/><ref>{{cite journal |last1=Dyerberg |first1=J |title=EICOSAPENTAENOIC ACID AND PREVENTION OF THROMBOSIS AND ATHEROSCLEROSIS? |journal=The Lancet |date=July 1978 |volume=312 |issue=8081 |pages=117–119 |doi=10.1016/s0140-6736(78)91505-2}}</ref> ||
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| 1979 || Literature || Fatty Acid || || Everett Pryde publishes ''Fatty Acids'', which covers the fatty acid literature up to date.<ref name="Ahmad"/> ||
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| 1980 || Recommendation || Dietary guideline || [[w:Saturated fat|Saturated]] || The {{w|United States Department of Agriculture}} and the {{w|United States Department of Health and Human Services}} jointly release the first Dietary Guidelines for Americans. These reports emphasize a leading harmful role of saturated fats.<ref name="www.aocs.org">{{cite web |title=Big fat controversy: changing opinions about saturated fats |url=https://www.aocs.org/stay-informed/inform-magazine/featured-articles/big-fat-controversy-changing-opinions-about-saturated-fats-june-2015?SSO=True |website=www.aocs.org |access-date=22 October 2021 |language=en}}</ref> || {{w|United States}}
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| 1983 || Scientific development || Ischemic heart disease || || Researchers show that the concentration of trans 18:1 and 16:1 fatty acids is 6.8% higher in the {{w|adipose tissue}} of individuals who died of ischemic heart disease compared with individuals who died of other causes.<ref>{{cite journal |last1=Thomas |first1=L H |last2=Winter |first2=J A |last3=Scott |first3=R G |title=Concentration of 18:1 and 16:1 transunsaturated fatty acids in the adipose body tissue of decedents dying of ischaemic heart disease compared with controls: analysis by gas liquid chromatography. |journal=Journal of Epidemiology & Community Health |date=1 March 1983 |volume=37 |issue=1 |pages=16–21 |doi=10.1136/jech.37.1.16}}</ref><ref>{{cite journal |last1=Thomas |first1=L H |last2=Winter |first2=J A |last3=Scott |first3=R G |title=Concentration of transunsaturated fatty acids in the adipose body tissue of decedents dying of ischaemic heart disease compared with controls. |journal=Journal of Epidemiology & Community Health |date=1 March 1983 |volume=37 |issue=1 |pages=22–24 |doi=10.1136/jech.37.1.22}}</ref><ref name="Kersten"/> ||
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| 1984 || Recommendation || {{w|Fat}} || || The United Kingdom issues dietary guidelines similar to the Dietary Guidelines for Americans issued in 1980. Both guidelines recommend reducing overall fat consumption to 30% of total calories, and saturated fat to no more than 10% of calories. These values would remain essentially unchanged in subsequent iterations.<ref name="www.aocs.org"/> || {{w|United Kingdom}}
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| 1984 || Scientific development || {{w|Low-density lipoprotein}} || [[w:Saturated fat|Saturated]] || An article published on ''[[w:Time (magazine)|Time]]'' reports that saturated fat is bad and can lead to high cholesterol and fatal heart attacks, as it tends to raise {{w|low-density lipoprotein}} (bad cholesterol) levels.<ref name="Belluz"/> ||
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| 1984 || Industrial development || {{w|Oleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:Omega-9 fatty acid|ω−9]])) || High-oleic seed is grown commercially in the United States for the first time in {{w|North Dakota}}, {{w|California}}, and {{w|Texas}}.<ref name="CRC Pr"/> || {{w|United States}}
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| 1984–1986 || General intake || {{w|Western pattern diet}} || {{w|Trans fat}} || Hunter and Applewhite report an estimate of trans fatty acids available for consumption in the U.S. diet for 1984 of 7.6 g/person/day. A similar value, 8.3 g/person/day, is obtained independently by a Federation of American Societies for Experimental Biology (FASEB) Review Panel on Trans Fatty Acids.<ref name="CRC Pr"/> ||
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| 1985 || Recommendation || {{w|Cholesterol}} || || Health organizations begin recommending diet modifications to lower serum cholesterol levels.<ref name="O'Brien"/> ||
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|-
 +
| 1985 || Program launch || {{w|Cholesterol}} || || The National Institutes of Health establishes the National Cholesterol Education Program.<ref name="Safeer">{{cite journal |last1=Safeer |first1=Richard S. |last2=Ugalat |first2=Prabha S. |title=Cholesterol Treatment Guidelines Update |journal=American Family Physician |date=1 March 2002 |volume=65 |issue=5 |pages=871 |url=https://www.aafp.org/afp/2002/0301/p871.html |issn=0002-838X}}</ref> || {{w|United States}}
 +
|-
 +
| 1985 || Scientific development || {{w|Cholesterol}} || || American researchers {{w|Michael Stuart Brown}} and {{w|Joseph L. Goldstein}} receive the Nobel Prize in Physiology or Medicine for their work on genetic causes for high levels of cholesterol in the blood that can lead to heart disease at a young age.<ref name="Pond"/> || {{w|United States}}     
 +
|-
 +
| 1985 || General intake || {{w|Western pattern diet}} || || In this year, Americans consume approximately 36%–37% of their calories as fat, which is comprised of 13.2% saturated, 13.8% monounsaturated, and 7.0% polyunsaturated {{w|fatty acid}}s.<ref name="CRC Pr"/> || {{w|United States}}
 +
|-
 +
| 1985 || Scientific development || {{w|Western pattern diet}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:Omega-3 fatty acid|ω-3]], [[w:Omega-6 fatty acid|ω-6]])) || Scientists begin linking an imbalance of [[w:Omega-6 fatty acid|omega-6]] and {{w|omega-3 fatty acid}}s to numerous diseases, raising questions about the food supply of Western countries.<ref name="The queen of fats"/> ||
 +
|-
 +
| 1985 || Industrial development || {{w|Canola oil}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || {{w|Canola oil}} is granted the status of Generally Recognized as Safe (GRAS) by the United States {{w|FDA}}, and starts being commercialized in the country.<ref name="CRC Pr">{{cite book |title=Fatty acids in foods and their health implications |date=2008 |publisher=CRC Press |isbn=0849372615}}</ref> Being high in {{w|alpha-Linolenic acid}}, the parent omega-3, canola oil is associated with good health as would be responsible for a small increase in the omega-3 content in modern western diet in the following decades.<ref name="The queen of fats">{{cite book |last1=Allport |first1=Susan |title=The queen of fats : why omega-3s were removed from the Western diet and what we can do to replace them |date=2006 |publisher=University of California Press |location=Berkeley |isbn=9780520242821}}</ref> || {{w|United States}}
 +
|-
 +
| 1985 || Industrial development || Microbial oil || || Microbial oils are introduced into the marketplace. Since then, these would gradually become of increasing importance and value in the niche market of high-value nutraceuticals.<ref name="Ahmad"/> ||
 +
|-
 +
| 1985 || Industrial development || {{w|Linolenic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || The first single cell oil is launched. This microbial oil is rich in gamma-linolenic acid and is produced using the fungus ''{{w|Mucor circinelloides}}''. This would prompt the appreciation that, with being a novel product, it would have to undergo stringent trials before it could be sold to the general public.<ref name="Ahmadvvddvd"/> ||
 +
|-
 +
| 1986 || Industrial development || Partially hydrogenated oil || [[w:Saturated fat|Saturated]] || {{w|McDonald's}} replaces the saturated fats in some of its products with partially hydrogenated oils, the major source of trans fats.<ref name="Penders">{{cite book |last1=Penders |first1=Bart |last2=Vermeulen |first2=Niki |last3=Parker |first3=John |title=Collaboration across Health Research and Medical Care: Healthy Collaboration |date=3 March 2016 |publisher=Routledge |isbn=978-1-317-16450-0 |url=https://books.google.com.ar/books?id=RxKrCwAAQBAJ&pg=PA82&lpg=PA82&dq=%22research%22+%22fats%22+%22in+1984..1986%22&source=bl&ots=4kd6xQolP1&sig=ACfU3U3S1ZGan7ZhBBNZYMP3gP3KzY6M9A&hl=en&sa=X&ved=2ahUKEwjw4OfOit_zAhUSqJUCHVv_CPkQ6AF6BAgOEAM#v=onepage&q=%22research%22%20%22fats%22%20%22in%201984..1986%22&f=false |language=en}}</ref> ||
 +
|-
 +
| 1986 || Scientific development || {{w|Docosahexaenoic acid}} || || {{w|Docosahexaenoic acid}} is discovered in bacteria.<ref name="Valentinevvvv">{{cite book |last1=Valentine |first1=Raymond C. |last2=Valentine |first2=David L. |title=Omega-3 Fatty Acids and the DHA Principle |date=3 December 2009 |publisher=CRC Press |isbn=978-1-4398-1300-3 |url=https://books.google.com.ar/books/about/Omega_3_Fatty_Acids_and_the_DHA_Principl.html?id=UQ7MBQAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
 +
|-
 +
| 1986 || Scientific development || Omega‐3 fatty acid sources || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || American endocrinologist {{w|Artemis Simopoulos}} reports that there are more omega-3 fatty acids in leaves than in seeds—and in the leaves of wild plants like purslane than in cultivated plants.<ref name="The queen of fats"/> || {{w|United States}}
 +
|-
 +
| 1987 || Recommendation || {{w|Cholesterol}} || || The report of {{w|National Cholesterol Education Program}}, Adult Treatment Panels suggests the total blood cholesterol level should be: < 200 mg/dL normal blood cholesterol, 200–239 mg/dL borderline-high, > 240 mg/dL high cholesterol.<ref name="pmid3422148">{{cite journal | title = Report of the National Cholesterol Education Program Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults. The Expert Panel | journal = Archives of Internal Medicine | volume = 148 | issue = 1 | pages = 36–69 | date = January 1988 | pmid = 3422148 | doi = 10.1001/archinte.148.1.36 }}</ref> ||
 +
|-
 +
| 1987 || Scientific development || {{w|Fish oil}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Leonard Storlien from {{w|University of Sydney}} finds that {{w|fish oil}} prevents insulin resistance and obesity in rats.<ref name="The queen of fats"/> ||
 +
|-
 +
| 1987 || Medical development || {{w|Cholesterol}} || || {{w|Lovastatin}} (sold under the brand name Mevacor among others) is approved for medical use.<ref>{{cite book |last1=Fischer |first1=Jnos |last2=Ganellin |first2=C. Robin |title=Analogue-based Drug Discovery |date=2006 |publisher=John Wiley & Sons |isbn=9783527607495 |page=472 |url=https://books.google.com/books?id=FjKfqkaKkAAC&pg=PA472 }}</ref> It is used for treating high blood cholesterol and reduceing the risk of {{w|cardiovascular disease}}.<ref>{{cite web |title=Lovastatin / Cholesterol Topical Cream Compounded |url=https://www.cfspharmacy.pharmacy/lovastatin-cholesterol |website=www.cfspharmacy.pharmacy |access-date=30 October 2021 |language=en}}</ref> ||
 +
|-
 +
| 1987 || Policy ||  {{w|Fish oil}} ({{w|menhaden}}) || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Federal approval for the use of partially hydrogenated {{w|menhaden}} oil in food products is granted in the United States.<ref name="CRC Pr"/> || {{w|United States}}
 +
|-
 +
| 1988 || Publication || {{w|Lipid}} || || The National Cholesterol Education Program, Adult Treatment Panel I (NCEP–ATP I) develops its first set of guidelines, establishing clear goals for patients with lipid abnormalities.<ref name="Safeer"/> || {{w|United States}}
 +
|-
 +
| 1988 || Scientific development || Trans fatty acid || || The first hypotheses are formulated concerning the effect of eating trans fatty acids on risk of coronary diseases.<ref name="Bridgwater"/> ||
 +
|-
 +
| 1989 || Scientific development || Fish || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || A number of trials reveal the benefits of omega-3 fatty acids in preventing death from {{w|myocardial infarction}}. Similar findings report that fish consumption as low as 35 grams per day, or about one serving a week, significantly reduces the risk of myocardial infarction.<ref name="The queen of fats"/> ||
 +
|-
 +
| 1989 || Scientific development || {{w|Baby formula}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Dennis Hoffman first finds significant differences in the visual and mental acuity of infants raised on formulas with and without omega-3 fatty acids.<ref name="The queen of fats"/> ||
 +
|-
 +
| 1989 || Medical development || {{w|Lipid}} || || {{w|Pravastatin}} (sold under the brand name Pravachol) is approved for medical use.<ref>{{cite book |title=Analogue-based drug discovery |date=2006 |publisher=Wiley-VCH |location=Weinheim |isbn=9783527607495}}</ref> It is used for treatment of blood lipids.<ref>{{cite journal |last1=Keech |first1=A. |last2=Colquhoun |first2=D. |last3=Best |first3=J. |last4=Kirby |first4=A. |last5=Simes |first5=R. J. |last6=Hunt |first6=D. |last7=Hague |first7=W. |last8=Beller |first8=E. |last9=Arulchelvam |first9=M. |last10=Baker |first10=J. |last11=Tonkin |first11=A. |title=Secondary Prevention of Cardiovascular Events With Long-Term Pravastatin in Patients With Diabetes or Impaired Fasting Glucose: Results from the LIPID trial |journal=Diabetes Care |date=1 October 2003 |volume=26 |issue=10 |pages=2713–2721 |doi=10.2337/diacare.26.10.2713}}</ref> ||
 +
|-
 +
| 1990 || Policy || {{w|Fat}} || || The {{w|Nutrition Labeling and Education Act of 1990}} becomes effective in the {{w|United States}}. It focuses on saturated fat (redefined as all saturated fatty acids) and calls for it to be labeled based on grams per serving and percentage of total energy. The labeling of monounsaturated and polyunsaturated fatty acids is deemed optional. These standards are based on the association between saturated fat intake and risk of cardiovascular disease, but also on observed associations with certain forms of cancer, diabetes, and other diseases.<ref name="Lichtenstein"/> || {{w|United States}}
 +
|-
 +
| 1990 || Scientific development || {{w|Cholesterol}} || || Mensink and Katan demonstrate the plasma cholesterol-raising effect of industrially produced trans-octadecenoic acids in human volunteers.<ref>{{cite journal |last1=Mensink |first1=Ronald P. |last2=Katan |first2=Martijn B. |title=Effect of Dietary trans Fatty Acids on High-Density and Low-Density Lipoprotein Cholesterol Levels in Healthy Subjects |journal=New England Journal of Medicine |date=16 August 1990 |volume=323 |issue=7 |pages=439–445 |doi=10.1056/NEJM199008163230703}}</ref> ||
 +
|-
 +
| 1990 || Scientific development || {{w|Cardiovascular disease}} || {{w|Trans fat}} || A large, well-controlled study published in the New England Journal of Medicine shows Conclusively that trans-fatty acids increase total cholesterol and "bad" low-density lipoprotein (LDL), both of which are correlated with increased cardiovascular disease, disproving manufacturers’ advertising which claims that suggest that {{w|margarine}}s can be good for the health of the heart.<ref name="Taubes"/> ||
 +
|-
 +
| 1990 || Scientific development || {{w|Trans fat}}, cholesterol || {{w|Trans fat}} || A Dutch study reports that the trans fatty acids do have an adverse effect on serum cholesterol.<ref name="Enig"/> || {{w|Netherlands}}
 +
|-
 +
| 1990 || Scientific development || {{w|Trans fat}} || {{w|Trans fat}} || An {{w|Institute of Medicine}} report determines that trans fats have "no deleterious effects" on human health.<ref name="Penders"/> || {{w|United States}}
 +
|-
 +
| 1990–2020 || Statistics || {{w|Western pattern diet}} || || In this period in the United States, the amount of calories from consumed fat falls from 40 percent to 30 percent, while obesity doubles and heart disease remains the leading cause of death in the country. These results would prompt a more favorable consensus toward the role of fats in health.<ref name="Everyone W"/> || {{w|United States}}
 +
|-
 +
| 1991 || General intake || {{w|Western pattern diet}} || {{w|Trans fat}} || Hunter and Applewhite update their estimate of trans fatty acid availability in the U.S. diet for 1989 to be 8.1 g/person/day.<ref name="CRC Pr"/> || {{w|United States}}
 +
|-
 +
| 1991 || Recommendation || {{w|Trans fat}} || {{w|Trans fat}} || The British Committee on Medical Aspects of Health (COMA) recommends that trans fatty acids be limited to 2% of the caloric (energy) intake.<ref name="Enig">{{cite book |last1=Enig |first1=Mary G. |title=Know Your Fats: The Complete Primer for Understanding the Nutrition of Fats, Oils and Cholesterol |date=1 January 2000 |publisher=Bethesda Press |isbn=978-0-9678126-0-1 |url=https://books.google.com.ar/books/about/Know_Your_Fats.html?id=2YKkAAAACAAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> || {{w|United Kingdom}}
 +
|-
 +
| 1991 || Organization || Fatty acids, lipids || || The International Society for the Study of Fatty Acids and Lipids (ISSFAL) is founded. With more than 500 members from more than 40 countries, it is the foremost International Scientific Society dealing exclusively with the health impact of dietary lipids.<ref>{{cite web |last1=Research |first1=F. A. B. |title=FAB: International Society for the Study of Fatty Acids and Lipids |url=https://www.fabresearch.org/viewItem.php?id=6990 |website=www.fabresearch.org |access-date=20 November 2021 |language=En}}</ref>
 +
|-
 +
| 1992 || Medical development || {{w|Lipid}} || || {{w|Simvastatin}} (sold under the brand name Zocor) is approved for medical use.<ref>{{cite book |title=Plant Bioactives and Drug Discovery : Principles, Practice, and Perspectives |date=2012 |publisher=John Wiley & Sons |location=Hoboken, N.J. |isbn=9780470582268}}</ref> It is a {{w|lipid-lowering medication}}.<ref>{{cite journal |title=Simvastatin Monograph for Professionals - Drugs.com |journal=web.archive.org |date=10 January 2015 |url=https://web.archive.org/web/20150110101755/http://www.drugs.com/monograph/simvastatin.html |access-date=30 October 2021}}</ref> ||
 +
|-
 +
| 1992 || Reccomendation || {{w|Western pattern diet}} || || In an effort to combat fats, the {{w|United States Department of Agriculture}} recommends up to 11 servings a day of grains, compared with just two to three servings of meat, eggs, nuts, beans and fish combined. Around this time, school districts across the country ban whole milk, yet sweetened chocolate milk remains on the menu as long as it’s low-fat.<ref name="Ending the"/> || {{w|United States}}
 +
|-
 +
| 1993 || Recommendation || Partially hydrogenated oil || || Health advocacy groups start calling for fast food chains to stop frying with partially hydrogenated oil.<ref name="latimes.comw"/> ||
 +
|-
 +
| 1993 || Scientific development || {{w|Lipoprotein}} || || Additional evidence for age, gender, and high-density lipoprotein importance emerges, reinforcing the need to address these factors.<ref name="Safeer"/> ||
 +
|-
 +
| 1993 || Policy || {{w|Saturated fat}}, {{w|cholesterol}} || [[w:Saturated fat|Saturated]] || The United States {{w|FDA}} requires that saturated fat and cholesterol be listed on food labels.<ref name="latimes.comw"/> || {{w|United States}}
 +
|-
 +
| 1994 || Statistics || {{w|Cardiovascular disease}} || {{w|Trans fat}} || A study estimates that over 30,000 cardiac deaths per year in the United States are attributable to the consumption of trans fats.<ref>{{cite journal |last1=Willett |first1=W C |last2=Ascherio |first2=A |title=Trans fatty acids: are the effects only marginal? |journal=American Journal of Public Health |date=May 1994 |volume=84 |issue=5 |pages=722–724 |doi=10.2105/AJPH.84.5.722}}</ref> ||
 +
|-
 +
| 1994 || Medical development || {{w|Cholesterol}} || || {{w|Fluvastatin}} is introduced for medical use.<ref>{{cite book |title=Analogue-based drug discovery |date=2006 |publisher=Wiley-VCH |location=Weinheim |isbn=9783527607495}}</ref> This drug lowers the total and low density lipoprotein cholesterol levels in {{w|hypercholesterolemia}}.<ref>{{cite journal |last1=Haramaki |first1=Nobuya |last2=Ikeda |first2=Hisao |last3=Takenaka |first3=Katsuhiko |last4=Katoh |first4=Atsushi |last5=Sugano |first5=Ryo |last6=Yamagishi |first6=Sho-ichi |last7=Matsuoka |first7=Hidehiro |last8=Imaizumi |first8=Tsutomu |title=Fluvastatin Alters Platelet Aggregability in Patients With Hypercholesterolemia: Possible Improvement of Intraplatelet Redox Imbalance via HMG-CoA Reductase |journal=Arteriosclerosis, Thrombosis, and Vascular Biology |date=June 2007 |volume=27 |issue=6 |pages=1471–1477 |doi=10.1161/atvbaha.106.128793}}</ref> ||
 +
|-
 +
| Mid–1990s || Industrial development || Hydrogenation || || By this time, approximately 25 million tons of fats, oils and fatty acids are hydrogenated every year for the food, cosmetics and lubricant industries.<ref name="Bridgwater"/> ||
 +
|-
 +
| 1995 || Scientific development || {{w|Cardiovascular disease}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || American physician {{w|Alexander Leaf}} reports that omega-3 fatty acids also prevent arrhythmia and sudden cardiac death.<ref name="The queen of fats"/> ||
 +
|-
 +
| 1995 || General intake || {{w|Western pattern diet}} || || Americans report an average of 25% of daily calories from fats added in food or meal preparation and at the table. As total calories from fat averaged 33% of daily calories, most fats consumed are added at the discretion of food processors, consumers, or preparers rather than naturally occurring.<ref name="CRC Pr"/> || {{w|United States}}
 +
|-
 +
| 1995–1996 || General intake || {{w|Western pattern diet}} || || The European multicentre TRANSFAIR Study is conducted. In it, samples of foods contributing to 95% total fat intake in 14 countries are analyzed centrally for trans-fatty acid content. Among the hydrogenated products, oils and fats are the main contributors (35%) followed by biscuits and cakes (16.5%). As for the biohydrogenated products, dairy products provide 18.8% of the total trans-fatty acids, while meat and meat products contribute 10.3% and butter another 5.9%. Overall, approximately, two-thirds of TFA in European diets are from foods with PHVO, while the remaining one-third is from natural food sources. Thus, in general, Europeans consume a lower proportion of TFA from partially hydrogenated vegetable oils compared with North Americans (∼80%).<ref name="Blackwell Pub"/> ||
 +
|-
 +
| 1996 || Literature || {{w|Lipid}}, {{w|fatty acid}} || || F. D Gunstone publishes ''Fatty acid and lipid chemistry''.<ref>{{cite book |last1=Gunstone |first1=F. D. |title=Fatty Acid and Lipid Chemistry |date=30 June 1996 |publisher=Springer |isbn=978-0-8342-1342-5 |url=https://books.google.com.ar/books/about/Fatty_Acid_and_Lipid_Chemistry.html?id=Kjkh9oNTVKUC&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
 +
|-
 +
| 1996 || Scientific development || {{w|Fatty acid}} || || Gunstone estimates the existence of over 1000 fatty acids at this time, compared to 300 in 1967.<ref name="Blackwell Pub"/> ||
 
|-
 
|-
| 1900 || 1 || 2 || 52 || 19
+
| 1996 || Medical development || {{w|Triglyceride}}, {{w|cholesterol}} || || {{w|Atorvastatin}} (sold under the brand name Lipitor) is approved for medical use in the {{w|United States}}. This drug reduces levels of {{w|triglyceride}}s and harmful {{w|low-density lipoprotein}} {{w|cholesterol}} in the blood and increases levels of beneficial {{w|high-density lipoprotein}} cholesterol.<ref>{{cite web |title=Lipitor: How does this statin affect cholesterol levels? |url=https://www.medicalnewstoday.com/articles/248136 |website=www.medicalnewstoday.com |access-date=30 October 2021 |language=en |date=25 February 2019}}</ref> || {{w|United States}}
 
|-
 
|-
| 1910 || 0 || 4 || 123 || 9
+
| 1996 || Scientific development || {{w|Sterol}} || || Mellanen et al. suggest that plant {{w|sterol}}s may be oestrogenic.<ref name="Phytosterol este"/><ref>{{cite journal |last1=Mellanen |first1=Pirkko |last2=Petänen |first2=Tiina |last3=Lehtimäki |first3=Jyrki |last4=Mäkelä |first4=Sari |last5=Bylund |first5=Göran |last6=Holmbom |first6=Bjarne |last7=Mannila |first7=Erkki |last8=Oikari |first8=Aimo |last9=Santti |first9=Risto |title=Wood-Derived Estrogens: Studiesin Vitrowith Breast Cancer Cell Lines andin Vivoin Trout |journal=Toxicology and Applied Pharmacology |date=February 1996 |volume=136 |issue=2 |pages=381–388 |doi=10.1006/taap.1996.0046}}</ref> || {{w|Finland}} ({{w|University of Turku}})
 
|-
 
|-
| 1920 || 0 || 1 || 171 || 13
+
| 1997 || Industrial development || Omega-3 eggs || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Commercial omega-3 eggs are first introduced to the public.<ref name="Zanwar">{{cite book |last1=Hegde |first1=Mahabaleshwar V. |last2=Zanwar |first2=Anand Arvind |last3=Adekar |first3=Sharad P. |title=Omega-3 Fatty Acids: Keys to Nutritional Health |date=15 September 2016 |publisher=Humana Press |location=[Cham] |isbn=978-3-319-40458-5 |url=https://books.google.com.ar/books/about/Omega_3_Fatty_Acids.html?id=lEgWDQAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
 
|-
 
|-
| 1930 || 1 || 6 || 261 || 21
+
| 1997 || Statistics || {{w|Fat}} || || The {{w|United States Department of Agriculture}} (USDA) reports that fat consumption by humans in the United States can exceed 100 g/day.<ref name="Driskell">{{cite book |last1=Driskell |first1=Judy A. |title=Sports Nutrition: Fats and Proteins |date=19 April 2007 |publisher=CRC Press |isbn=978-1-4200-0850-0 |url=https://books.google.com.pr/books?id=ppt5u8XsFeYC |language=en}}</ref> || {{w|United States}}
 
|-
 
|-
| 1940 || 1 || 14 || 399 || 41
+
| 1998 || Literature || {{w|Fat}} || || Caroline M. Pond publishes ''The Fats of Life''.<ref>{{cite book |last1=Pond |first1=Caroline M. |title=The Fats of Life |date=13 August 1998 |publisher=Cambridge University Press |isbn=978-0-521-63577-6 |url=https://books.google.com.ar/books/about/The_Fats_of_Life.html?id=Usto_MdMXYMC&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
 
|-
 
|-
| 1950 || 0 || 14 || 811 || 80
+
| 1999 || Scientific development || Mental health || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Joe Hibbeln and Andrew Stoll independently report an inverse correlation between {{w|omega-3 fatty acid}} consumption and the incidence of depression and that fish oil reduces episodes of {{w|mania}} and {{w|depression}} in patients with {{w|bipolar disorder}}.<ref name="The queen of fats"/> || {{w|United States}}
 
|-
 
|-
| 1960 || 2 || 72 || 2,060 || 376
+
| 1999 || Recommendation || {{w|Cholesterol}}, {{w|saturated fat}} || [[w:Saturated fat|Saturated]] || An article published on ''[[w:Time (magazine)|Time]]'', intolerant towards saturated fats, suggests that {{w|cholesterol}} is "okay", but saturated fat is dangerous. The article reads as follows: "Eat eggs. But beware saturated fat: it may be a bigger threat to the heart and blood vessels than cholesterol."<ref name="Belluz"/> ||  
 
|-
 
|-
| 1970 || 1 || 157 || 5,520 || 1,980
+
| 1999 || Scientific development || {{w|Metabolism}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:Omega-3 fatty acid|ω-3]], [[w:Omega-6 fatty acid|ω-6]])) || Tony Hulbert and Paul Else publish data indicating that the degree of unsaturation of an animal’s membranes, a function, in part, of the dietary intake of {{w|omega-3}}s and {{w|omega-6}}s, is the pacemaker of that animal’s metabolism. This discovery creates a new way of looking at the role that greens and seeds play in human health and a framework on which to hang all the other findings about omega-3s.<ref name="The queen of fats"/> || 
 
|-
 
|-
| 1980 || 6 || 537 || 9,440 || 3,440
+
| 1999 || Recommendation || {{w|Docosahexaenoic acid}} || || An expert panel including the International Society for the Study of Fatty Acids and Lipids (ISSFAL), the U.S. National Institute on Alcohol Abuse and Alcoholism, the U.S. Office of Dietary Supplements at the National Institutes of Health, and the Center for Genetics, Nutrition, and Health, is convened to formulate recommendations for dietary intakes of omega-3 and omega-6 fatty acids. The recommendation for {{w|docosahexaenoic acid}} during pregnancy put forward by the expert panel is 200 mg/day<ref>{{cite journal |last1=Koletzko |first1=Berthold |last2=Lien |first2=Eric |last3=Agostoni |first3=Carlo |last4=Böhles |first4=Hansjosef |last5=Campoy |first5=Cristina |last6=Cetin |first6=Irene |last7=Decsi |first7=Tamas |last8=Dudenhausen |first8=Joachim W. |last9=Dupont |first9=Cristophe |last10=Forsyth |first10=Stewart |last11=Hoesli |first11=Irene |last12=Holzgreve |first12=Wolfgang |last13=Lapillonne |first13=Alexandre |last14=Putet |first14=Guy |last15=Secher |first15=Niels J. |last16=Symonds |first16=Mike |last17=Szajewska |first17=Hania |last18=Willatts |first18=Peter |last19=Uauy |first19=Ricardo |title=The roles of long-chain polyunsaturated fatty acids in pregnancy, lactation and infancy: review of current knowledge and consensus recommendations |journal=Journal of Perinatal Medicine |date=1 January 2008 |volume=36 |issue=1 |doi=10.1515/JPM.2008.001}}</ref>. In addition, the panel recommends 2.22 g/day of {{w|linolenic acid}} for all adults, and an upper limit was established for {{w|linoleic acid}} of 6.67 g/day.<ref name="Watsonvv">{{cite book |last1=Watson |first1=Ronald Ross |title=Omega-3 Fatty Acids in Brain and Neurological Health |date=25 June 2014 |publisher=Elsevier |isbn=978-0-12-410547-8 |url=https://books.google.com.ar/books/about/Omega_3_Fatty_Acids_in_Brain_and_Neurolo.html?id=HFgXAwAAQBAJ&redir_esc=y |language=en}}</ref>
 
|-
 
|-
| 1990 || 17 || 1,240 || 16,700 || 5,380 
+
| 2000 || Statistics || Oils, {{w|fat}}s || || The global consumption of oils and fats ia 116.4 million tons. The largest volumes are for soybean oil (26.4 mt), palm oil (22.8 mt), rape seed oil (14.5 mt) and sunflower oil (9.4 mt).<ref>{{cite book |title=Industry as a Partner for Sustainable Development: Food and Drink |date=2002 |publisher=UNEP/Earthprint |isbn=978-92-807-2185-0 |url=https://books.google.com.ar/books?id=OB1IWopGUUkC&pg=PA24&lpg=PA24&dq=%22research%22+%22fats%22+%22in+1999..2000%22&source=bl&ots=9Ln2VUSQHP&sig=ACfU3U16zMOkSMa_DlMHvfBMtNN0Wlqquw&hl=en&sa=X&ved=2ahUKEwjo_dCPl9_zAhVeqZUCHWc7BV8Q6AF6BAgTEAM#v=onepage&q=%22research%22%20%22fats%22%20%22in%201999..2000%22&f=false |language=en}}</ref> || Worldwide
 
|-
 
|-
| 2000 || 83 || 2,570 || 35,300 || 11,000
+
| 2001 || Scientific development || {{w|Diabetes}} || {{w|Trans fat}} || One study finds that risk of {{w|diabetes}} is higher for those in the highest {{w|quartile}} of trans fat consumption.<ref name=hu2001zf>{{cite journal | vauthors = Hu FB, van Dam RM, Liu S | title = Diet and risk of Type II diabetes: the role of types of fat and carbohydrate | journal = Diabetologia | volume = 44 | issue = 7 | pages = 805–17 | date = July 2001 | pmid = 11508264 | doi = 10.1007/s001250100547}}</ref> ||
 
|-
 
|-
| 2010 || 1,460 || 6,330 || 116,000 || 30,100 
+
| 2001 || Scientific development || {{w|Docosahexaenoic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Jeffrey et al.<ref>{{cite journal |last1=Jeffrey |first1=Brett G. |last2=Weisinger |first2=Harrison S. |last3=Neuringer |first3=Martha |last4=Mitchell |first4=Drake C. |title=The role of docosahexaenoic acid in retinal function |journal=Lipids |date=2001 |volume=36 |issue=9 |pages=859–871 |doi=10.1007/s11745-001-0796-3}}</ref> (later Hoffman et al. in 2009<ref>{{cite journal |last1=Hoffman |first1=Dennis R. |last2=Boettcher |first2=Julia A. |last3=Diersen-Schade |first3=Deborah A. |title=Toward optimizing vision and cognition in term infants by dietary docosahexaenoic and arachidonic acid supplementation: A review of randomized controlled trials |journal=Prostaglandins, Leukotrienes and Essential Fatty Acids |date=1 August 2009 |volume=81 |issue=2 |pages=151–158 |doi=10.1016/j.plefa.2009.05.003}}</ref>) report on {{w|docosahexaenoic acid}} as exerting several roles in the visual system from photoreceptor differentiation to synaptic plasticity in a series of events leading to a direct influence on visual acuity.<ref name="Watsonvv"/>
 
|-
 
|-
| 2020 || 2,360 || 9,960 || 68,700 || 32,200
+
| 2002 || Scientific development || Mental health || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || Ki Shuk Shim and G. Lubec postulate several mechanisms for the possible protective role of omega-3 fatty acids in {{w|dementia}}.<ref>{{cite journal |last1=Shim |first1=Ki Shuk |last2=Lubec |first2=Gert |title=Drebrin, a dendritic spine protein, is manifold decreased in brains of patients with Alzheimer's disease and Down syndrome |journal=Neuroscience Letters |date=May 2002 |volume=324 |issue=3 |pages=209–212 |doi=10.1016/s0304-3940(02)00210-0}}</ref> The brain is particularly rich in fatty acids.<ref name="Watsonvv"/> ||
 
|-
 
|-
|}
+
| 2002 || Scientific development || α-linolenic acid || || Burdge et al. attempt to disprove the essentiality of α-linolenic acid by showing that 33% of a labeled dose given to a human was exhaled as CO2 in the first 24 h.<ref name="CRC Pr"/> ||
 
 
[[File:Fat gsch.png|thumb|center|600px]]
 
 
 
=== Google Trends ===
 
 
 
The chart below shows {{w|Google Trends}} data for Fat (food), from January 2004 to October 2021, when the screenshot was taken. Interest is also ranked by country and displayed on world map.<ref>{{cite web |title=Fat |url=https://trends.google.com/trends/explore?date=all&q=%2Fm%2F02zks |website=Google Trends |access-date=6 October 2021}}</ref>
 
 
 
[[File:Fat gt.png|thumb|center|600px]]
 
 
 
=== Google Ngram Viewer ===
 
 
 
The comparative chart below shows {{w|Google Ngram Viewer}} data for trans fat, saturated fat, fatty acid and triglyceride from 1800 to 2019.<ref>{{cite web |title=trans fat, saturated fat, fatty acid, triglyceride |url=https://books.google.com/ngrams/graph?content=trans+fat%2Csaturated+fat%2Cfatty+acid%2Ctriglyceride&year_start=1800&year_end=2019&corpus=26&smoothing=3&direct_url=t1%3B%2Ctrans%20fat%3B%2Cc0%3B.t1%3B%2Csaturated%20fat%3B%2Cc0%3B.t1%3B%2Cfatty%20acid%3B%2Cc0%3B.t1%3B%2Ctriglyceride%3B%2Cc0#t1%3B%2Ctrans%20fat%3B%2Cc0%3B.t1%3B%2Csaturated%20fat%3B%2Cc0%3B.t1%3B%2Cfatty%20acid%3B%2Cc0%3B.t1%3B%2Ctriglyceride%3B%2Cc0 |website=books.google.com |access-date=6 October 2021 |language=en}}</ref>
 
 
 
[[File:Fat ngram.png|thumb|center|700px]]
 
 
 
=== Wikipedia Views ===
 
 
 
The chart below shows pageviews of the English Wikipedia article {{w|Fat}}, from July 2015 to September 2021.<ref>{{cite web |title=Fat |url=https://wikipediaviews.org/displayviewsformultiplemonths.php?page=Fat&allmonths=allmonths-api&language=en&drilldown=all |website=wikipediaviews.org |access-date=6 October 2021}}</ref>
 
 
 
 
 
[[File:Fat wv.png|thumb|center|450px]]
 
 
 
==Full timeline==
 
 
 
{| class="sortable wikitable"
 
! Year !! Event type !! Details !! Location
 
 
|-
 
|-
| 1551 || Scientific development || {{w|Adipose tissue}} – more specifically brown adipose tissue– is first identified by Swiss naturalist {{w|Conrad Gessner}}.<ref>{{cite journal |last1=Cannon |first1=Barbara |last2=Nedergaard |first2=Jan |title=Neither fat nor flesh |journal=Nature |date=August 2008 |volume=454 |issue=7207 |pages=947–948 |doi=10.1038/454947a}}</ref> ||
+
| 2002 || Recommendation || {{w|Monounsaturated fat}}, {{w|Polyunsaturated fat}} || || The Institute of Medicine of the [[w:National Academies of Sciences, Engineering, and Medicine|National Academies]] releases the 'Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein and Amino Acids'. The report brief indicates that "monounsaturated and polyunsaturated fatty acids reduce blood cholesterol concentration and help lower the risk of heart disease when they replace saturated fatty acids in the diet".<ref>{{cite web |last1=Canada |first1=Health |title=Summary of Health Canada's Assessment of a Health Claim about the Replacement of Saturated Fat with Mono- and Polyunsaturated Fat and Blood Cholesterol Lowering |url=https://www.canada.ca/en/health-canada/services/food-nutrition/food-labelling/health-claims/assessments/about-replacement-saturated-mono-polyunsaturated-blood-cholesterol-lowering.html |website=www.canada.ca |access-date=27 October 2021 |date=26 March 2012}}</ref> It also recommends that the consumption of trans fatty acids be as low as possible.<ref name="Storey"/> || {{w|United States}}
 
|-
 
|-
| 1769 || Scientific development || {{w|François Poulletier de la Salle}} first identifies cholesterol in solid form in {{w|gallstone}}s.
+
| 2003 || Recommendation || Saturated fatty acid || [[w:Saturated fat|Saturated]] || A report by the World Health Organization and the {{w|Food and Agriculture Organization}} (FAO) recommends limiting the saturated fatty acids to less than 10% of daily energy intake and less than 7% for high-risk groups.<ref name=who2003s>{{cite book |url= http://apps.who.int/iris/bitstream/10665/42665/1/WHO_TRS_916.pdf |title= Diet, Nutrition and the Prevention of Chronic Diseases (WHO technical report series 916) |publisher= World Health Organization |author = Joint WHO/FAO Expert Consultation |year= 2003 |pages=81–94 |isbn= 978-92-4-120916-8}}</ref> ||
 
|-
 
|-
| 1770s || || Reports from this time indicate that fish liver oils are used for the treatment of {{w|rickets}}, {{w|osteomalacia}}, general malnutrition, and eye conditions, thus linking, for the first time, fish liver oils and the factor termed “fat-soluble A.<ref name="Lichtenstein"/> ||
+
| 2003 || Scientific development || {{w|Breast cancer}} || [[w:Saturated fat|Saturated]] || A meta-analysis finds a significant positive relationship between saturated fat and {{w|breast cancer}}.<ref name=boyd2003>{{cite journal |vauthors=Boyd NF, Stone J, Vogt KN, Connelly BS, Martin LJ, Minkin S | title = Dietary fat and breast cancer risk revisited: a meta-analysis of the published literature | journal = British Journal of Cancer | volume =  89| issue = 9 | pages = 1672–1685 | date = November 2003 | pmid = 14583769 | pmc = 2394401 | doi = 10.1038/sj.bjc.6601314 }}</ref> ||
 
|-
 
|-
| 1779 || Scientific development || Swedish chemist {{w|Carl Wilhelm Scheele}} discovers that {{w|glycerol}} could be obtained from {{w|olive oil}} by heating it with {{w|litharge}} (lead monoxide).<ref name="Fat {{!}} substance">{{cite web |title=Fat {{!}} substance |url=https://www.britannica.com/topic/fat |website=Encyclopedia Britannica |access-date=16 September 2021 |language=en}}</ref> Along with {{w|fatty acid}}s, glycerol is one of the two main components of a fat molecule.<ref>{{cite web |title=Lipids {{!}} Boundless Chemistry |url=https://courses.lumenlearning.com/boundless-chemistry/chapter/lipids/#:~:text=A%20fat%20molecule%20consists%20of,three%20hydroxyl%20(OH)%20groups.&text=In%20a%20fat%20molecule%2C%20the,bond%20through%20the%20oxygen%20atom. |website=courses.lumenlearning.com |access-date=6 October 2021}}</ref> || {{w|Sweden}}
+
| 2003 || Scientific development || {{w|Cholesteryl ester}} || {{w|Trans fat}} || A randomized {{w|crossover study}} comparing the effect [[w:postprandial|of eating a meal]] on blood lipids of (relatively) cis and trans-fat-rich meals shows that {{w|cholesteryl ester}} transfer (CET) is 28% higher after the trans meal than after the cis meal and that lipoprotein concentrations are enriched in {{w|apolipoprotein}}(a) after the trans meals.<ref name=gatto2003>{{cite journal | vauthors = Gatto LM, Sullivan DR, Samman S | title = Postprandial effects of dietary trans fatty acids on apolipoprotein(a) and cholesteryl ester transfer | journal = The American Journal of Clinical Nutrition | volume = 77 | issue = 5 | pages = 1119–24 | date = May 2003 | pmid = 12716661 | doi = 10.1093/ajcn/77.5.1119}}</ref> ||
 
|-
 
|-
| 1791 || Scientific development || Swiss scientist {{w|Jean Senebier}} reports in the ''Encyclopédie méthodique, Physiologie végétale'' a classification of oils. They are separated into essential and greasy oils.<ref name="cyberlipid.gerli.com"/> || {{w|Switzerland}}
+
| 2003 || Scientific development || {{w|Alzheimer disease}} || [[w:Saturated fat|Saturated]], {{w|trans fat}} || A study published in {{w|Archives of Neurology}} suggests that the intake of both trans fats and saturated fats promotes the development of {{w|Alzheimer disease}}.<ref name=morr2003>{{cite journal | vauthors = Morris MC, Evans DA, Bienias JL, Tangney CC, Bennett DA, Aggarwal N, Schneider J, Wilson RS | display-authors = 6 | title = Dietary fats and the risk of incident Alzheimer disease | journal = Archives of Neurology | volume = 60 | issue = 2 | pages = 194–200 | date = February 2003 | pmid = 12580703 | doi = 10.1001/archneur.60.2.194}}</ref> ||
 
|-
 
|-
| 1813 || Scientific development || The concept of {{w|fatty acid}} (''acide gras'') is introduced by {{w|Michel Eugène Chevreul}},<ref>Chevreul, M. E. (1813). Sur plusieurs corps gras, et particulièrement sur leurs combinaisons avec les alcalis. ''Annales de Chimie'', t. 88, p. 225-261. [http://gallica.bnf.fr/ark:/12148/bpt6k65741176/f225.item link (Gallica)], [https://books.google.com/books?id=8-sYI8xfBGMC link (Google)].</ref><ref>Chevreul, M. E. ''Recherches sur les corps gras d'origine animale''. Levrault, Paris, 1823. [https://archive.org/details/rechercheschimi00chevgoog link].</ref> though he initially uses some variant terms: ''graisse acide'' and ''acide huileux'' ("acid fat" and "oily acid").<ref>Menten, P. ''Dictionnaire de chimie: Une approche étymologique et historique''. De Boeck, Bruxelles. [https://books.google.com/books?id=NKTKDgAAQBAJ link].</ref> ||
+
| 2003 || General intake || {{w|Western pattern diet}} || || In the United States, 81.3% of total edible fats and oils consumed comprise vegetable oils, an increase from 56.7% in 1965.<ref name="Blackwell Pub"/> || {{w|United States}}
 
|-
 
|-
| 1815 || Scientific development || French chemist {{w|Michel-Eugène Chevreul}} demonstrates the chemical nature of fats and oils.<ref name="Fat {{!}} substance"/> He also names the compound "[[w:cholesterol|cholesterine]]".<ref>Chevreul (1816) "Recherches chimiques sur les corps gras, et particulièrement sur leurs combinaisons avec les alcalis. Sixième mémoire. Examen des graisses d'homme, de mouton, de boeuf, de jaguar et d'oie" (Chemical researches on fatty substances, and particularly on their combinations o filippos ine kapios with alkalis. Sixth memoir. Study of human, sheep, beef, jaguar and goose fat), ''Annales de Chimie et de Physique'', '''2''' : 339–372. From [https://books.google.com/books?id=DHCz1nhhYL8C&pg=PA346#v=onepage&q&f=false page 346] : "Je nommerai ''cholesterine'', de χολη, bile, et στερεος, solide, la substance cristallisée des calculs biliares humains, ... " (I will name ''cholesterine'' – from χολη (bile) and στερεος (solid) – the crystalized substance from human gallstones ... )</ref><ref name="Olson_1998">{{cite journal | vauthors = Olson RE | title = Discovery of the lipoproteins, their role in fat transport and their significance as risk factors | journal = The Journal of Nutrition | volume = 128 | issue = 2 Suppl | pages = 439S–443S | date = February 1998 | pmid = 9478044 | doi = 10.1093/jn/128.2.439S | doi-access = free }}</ref> || {{w|France}}
+
| 2003 || Policy || {{w|Trans fat}} (industrially-produced) || {{w|Trans fat}} || Denmark pioneers the banning of industrially-produced trans fats in food.<ref>{{cite web |title=Denmark, trans fat ban pioneer: lessons for other countries |url=https://www.who.int/news-room/feature-stories/detail/denmark-trans-fat-ban-pioneer-lessons-for-other-countries |website=www.who.int |access-date=5 October 2021 |language=en}}</ref> The food regulatory agency of that country bans the use of all hydrogenated fats from food products, but at the same time made an explicit exception allowing the use of animal fats containing natural trans fatty acids as these were viewed as chemically different.<ref name="Bridgwater"/> || {{w|Denmark}}
 
|-
 
|-
| 1815 || Scientific development || {{w|Henri Braconnot}} classifies {{w|lipid}}s (''graisses'') in two categories, ''suifs'' (solid greases or tallow) and ''huiles'' (fluid oils).<ref name = "Braconnot_1815">{{cite journal | vauthors = Braconnot H | title = Sur la nature des corps gras. | journal = Annales de chimie | date = 31 March 1815 | volume = 2 | issue = XCIII | pages = 225–277 | url = http://gallica.bnf.fr/ark:/12148/bpt6k6568590p/f229.item }}</ref> ||
+
| 2003 || Medical development || {{w|Cholesterol}}, {{w|triglyceride}} || || {{w|Pitavastatin}} is approved for medical use.<ref>{{cite book |title=Analogue-based drug discovery |date=2006 |publisher=Wiley-VCH |location=Weinheim |isbn=9783527607495}}</ref> It is used for lowing blood total cholesterol, {{w|low-density lipoprotein}} cholesterol and {{w|triglyceride}}s.<ref>{{cite journal |last1=Adams |first1=Stephen P |last2=Alaeiilkhchi |first2=Nima |last3=Wright |first3=James M |title=Pitavastatin for lowering lipids |journal=Cochrane Database of Systematic Reviews |date=19 June 2020 |volume=2020 |issue=7 |doi=10.1002/14651858.CD012735.pub2}}</ref> ||  
 
|-
 
|-
| 1823 || Scientific development || French chemist {{w|Michel Eugène Chevreul}} develops a more detailed classification of {{w|lipid}}s, including oils, greases, tallow, waxes, resins, balsams and volatile oils (or essential oils).<ref name = "Chevreul_1823">{{cite book | vauthors = Chevreul ME | title = Recherches sur les corps gras d'origine animale | publisher = Levrault | location = Paris | date = 1823 | url = https://books.google.com/books?id=r46rnl27h70C }}</ref><ref name="Leray_2012">{{cite book | vauthors = Leray C | date = 2012 | title = Introduction to Lipidomics | location = Boca Raton | publisher = CRC Press | url = https://books.google.com/books?id=u710vE5IgrgC | isbn = 9781466551466 }}</ref> || {{w|France}}
+
| 2003 || Medical development || {{w|Triglyceride}}, {{w|cholesterol}} || || {{w|Lipitor}} becomes the best-selling {{w|pharmaceutical}} in history.<ref>{{cite journal |last1=Simons |first1=J |title=The $10 billion pill. |journal=Fortune |date=20 January 2003 |volume=147 |issue=1 |pages=58-62, 66, 68 |pmid=12602122}}</ref> ||
 
|-
 
|-
| 1827 || Scientific development || {{w|William Prout}} recognizes fat ("oily" alimentary matters), along with protein ("albuminous") and carbohydrate ("saccharine"), as an important nutrient for humans and animals.<ref>{{cite web |title=Wayback Machine |url=https://web.archive.org/web/20171013173759/http://www.cyberlipid.org/cyberlip/home0001.htm |website=web.archive.org |access-date= |date=13 October 2017}}</ref><ref>{{cite journal | vauthors = Prout W | date = 1827 | title = On the ultimate composition of simple alimentary substances, with some preliminary remarks on the analysis of organised bodies in general. | journal = Phil. Trans. | pages = 355–388 | url = https://books.google.com/books?id=UO5FAAAAMAAJ }}</ref> ||
+
| 2003 || Policy || Trans-fat || || United States {{w|FDA}} rules that the amount of trans-fat in a food item must be stated on the label after January 1, 2006. Food items could be labeled 0% trans if they contain less than 0.5 g per serving.<ref name="Ahmadvvddvd"/> || {{w|United States}}
 
|-
 
|-
| 1844 || Scientific development || The first synthetic {{w|triglyceride}} is reported by {{w|Théophile-Jules Pelouze}}, who manages to produce {{w|tributyrin}} by treating {{w|butyric acid}} with {{w|glycerin}} in the presence of concentrated {{w|sulfuric acid}}.<ref>{{cite journal | vauthors = Pelouze TJ, Gélis A | title = Mémoire sur l'acide butyrique | journal = Annales de Chimie et de Physique | volume = 10 | pages = 434 |date = 1844 }}</ref> ||
+
| 2004 || Scientific development || {{w|Saturated fat}} || [[w:Saturated fat|Saturated]] || A review concludes that "no lower safe limit of specific saturated fatty acid intakes has been identified" and recommends that the influence of varying saturated fatty acid intakes against a background of different individual lifestyles and genetic backgrounds should be the focus in future studies.<ref name=germ2004>{{cite journal |vauthors=German JB, Dillard CJ | title = Saturated fats: what dietary intake? | journal = American Journal of Clinical Nutrition | volume = 80 | issue = 3 | pages = 550–559 | date = September 2004 | pmid = 15321792 | doi = 10.1093/ajcn/80.3.550 | doi-access = free }}</ref> ||
 
|-
 
|-
| 1847 || Scientific development || {{w|Theodore Nicolas Gobley}} discovers {{w|phospholipid}}s in mammalian brain and hen egg, called by him as "{{w|lecithin}}s".<ref>{{cite journal |last1=Zeisel |first1=Steven H. |title=A Brief History of Choline |journal=Annals of Nutrition and Metabolism |date=2012 |volume=61 |issue=3 |pages=254–258 |doi=10.1159/000343120}}</ref> ||  
+
| 2004 || Recommendation || {{w|Cardiovascular disease}} || {{w|Trans fat}} || The {{w|European Food Safety Authority}} produces a scientific opinion on trans fatty acids, surmising that "higher intakes of TFA may increase risk for {{w|coronary heart disease}}.<ref>{{cite web |title=Opinion of the Scientific Panel on Dietetic products, nutrition and allergies [NDA] related to the presence of trans fatty acids in foods and the effect on human health of the consumption of trans fatty acids {{!}} EFSA |url=https://www.efsa.europa.eu/en/efsajournal/pub/81 |website=www.efsa.europa.eu |access-date=12 October 2021 |language=en}}</ref> ||
 
|-
 
|-
| 1849 || Scientific development || French physiologist {{w|Claude Bernard}} reports that pancreatic juice is involved in the breakdown of fat to {{w|glycerine}} and {{w|fatty acid}}s for subsequent absorption.<ref name="Lichtenstein">{{cite journal |last1=Lichtenstein |first1=Alice H. |title=Dietary Fat: A History |journal=Nutrition Reviews |date=27 April 2009 |volume=57 |issue=1 |pages=11–14 |doi=10.1111/j.1753-4887.1999.tb01770.x}}</ref> || {{w|France}}
+
| 2004 || Literature || Oil, fat || || F. D. Gunstone publishes ''The Chemistry of Oils and Fats: Sources, Composition, Properties, and Uses''.<ref>{{cite book |last1=Gunstone |first1=F. D. |title=The Chemistry of Oils and Fats: Sources, Composition, Properties, and Uses |date=2004 |publisher=Blackwell Pub. |isbn=978-0-8493-2373-7 |url=https://books.google.com.ar/books?id=le_nFrWy_WoC&source=gbs_similarbooks |language=en}}</ref> ||
 
|-
 
|-
| 1854 || Scientific development || {{w|Triacetin}} is first prepared by French chemist {{w|Marcellin Berthelot}}.<ref>{{cite journal|last1=Berthelot|first1=Marcellin |title=Sur les combinaisons de le glycérine avec les acides et sur la synthèse des principes immédiats des graisses des animaux|journal=Annales de Chimie et de Physique|date=1854|volume=41|pages=216–319|url=https://babel.hathitrust.org/cgi/pt?id=hvd.hx3dyk;view=1up;seq=290|series=3rd series|trans-title=On the compounds of glycerin with acids and on the synthesis of immediate principles of animal fats|language=French}} ; see "Triacétine", pp. 282–283.</ref> ||
+
| 2004 || Policy || {{w|Phytosterol}}, {{w|phytostanol}} || || The European Union Commission publishes Regulation 608/2004/EC concerning the labelling of foods and food ingredients with added phytosterols, phytosterol esters, phytostanols and/or phytostanol esters, requiring such products to be labelled with additional information including the words “with added plant sterols/plant stanols”.<ref name="Phytosterol este"/> ||
 
|-
 
|-
| 1856 || Scientific development || German {{w|pathologist}} {{w|Rudolf Virchow}} first describes {{w|lipid}} accumulation in arterial walls.<ref name="Virchow">{{cite book|last=Virchow|first=Rudolf|title=Vierteljahrschrift für die praktische Heilkunde|publisher=Staatsdruckerei Frankfurt|year=1856|location=Germany|at=Phlogose und Thrombose im Gefäßsystem|chapter=Gesammelte Abhandlungen zur wissenschaftlichen Medizin|chapter-url=https://books.google.com/books?id=rsRXAAAAMAAJ&q=%22Phlogose%22&pg=RA5-PA47}}</ref> || {{w|Germany}}
+
| 2004–2005 || Industrial development || Fat and oil production || || World production of fats and oil is about 137 million metric tons in this period. At the same time, the consumption of oil is forecast to be 138 MMTs. {{w|Palm oil}} overtakes {{w|soybean oil}} for the first time in worldwide production.<ref name="CRC Pr"/> || Worldwide
 
|-
 
|-
| 1869 || Scientific development || French chemist {{w|Hippolyte Mège-Mouriès}} invents the {{w|margarine}}. In the same year, he wins a prize offered by {{w|Napoleon III}} for a satisfactory {{w|butter}} substitute.<ref name="Fat {{!}} substance"/><ref>{{cite book |last1=Preedy |first1=Victor R. |last2=Srirajaskanthan |first2=Rajaventhan |last3=Patel |first3=Vinood B. |title=Handbook of Food Fortification and Health: From Concepts to Public Health Applications Volume 1 |date=4 July 2013 |publisher=Springer Science & Business Media |isbn=978-1-4614-7076-2 |url=https://books.google.com.ar/books?id=0YJDAAAAQBAJ&pg=PA160&dq=Hippolyte+M%C3%A8ge-Mouri%C3%A8s+%22in+1860..1869%22&hl=en&sa=X&ved=2ahUKEwjTqvHZkbzzAhUbpJUCHdr8CT8Q6AF6BAgDEAI#v=onepage&q=Hippolyte%20M%C3%A8ge-Mouri%C3%A8s%20%22in%201860..1869%22&f=false |language=en}}</ref> || {{w|France}}
+
| 2004–2005 || Scientific development || {{w|Western pattern diet}} || {{w|Trans fat}} || An analysis of samples of {{w|McDonald's}} French fries collected finds that fries served in New York City contain twice as much trans fat as in {{w|Hungary}}, and 28 times as much as in {{w|Denmark}}, where trans fats are restricted. For {{w|Kentucky Fried Chicken}} products, the pattern is reversed: the Hungarian product containing twice the trans fat of the New York product. Even within the United States, there is variation, with fries in New York containing 30% more trans fat than those from {{w|Atlanta}}.<ref name=nbc2006ym>{{cite news | title=What's in that french fry? Fat varies by city | work={{w|NBC News}} | date=12 April 2006 | url=https://www.nbcnews.com/id/12287818 | access-date=7 January 2007}} AP story concerning {{cite journal | pmid = 16611965 | doi=10.1056/NEJMc052959 | volume=354 | title=High levels of industrially produced trans fat in popular fast foods | date=April 2006 | journal=N. Engl. J. Med. | pages=1650–2 | last1 = Stender | first1 = S | last2 = Dyerberg | first2 = J | last3 = Astrup | first3 = A| issue=15 }}</ref> ||
 
|-
 
|-
| 1869 || Scientific development || The word ''{{w|carbohydrate}}'' is first used.<ref name="cyberlipid.gerli.com"/> ||
+
| 2005 || Scientific development || {{w|Bone density}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:Omega-3 fatty acid|ω-3]], [[w:Omega-6 fatty acid|ω-6]])) || The influence of the [[w:Omega-6 fatty acid|ω-6]]/[[w:Omega-3 fatty acid|ω-3]] ratio upon bone mineral density in elderly adults is assessed by Weiss et al. An increase in the ratio is seen to be significantly and independently correlated with increased bone mineral density of the hip in all participating women, and of the spine in women receiving hormone therapy. Similar results would be obtained in other studies.<ref name="Gómez Candela"/><ref>{{cite journal |last1=Högström |first1=Magnus |last2=Nordström |first2=Peter |last3=Nordström |first3=Anna |title=n−3 Fatty acids are positively associated with peak bone mineral density and bone accrual in healthy men: the NO2 Study |journal=The American Journal of Clinical Nutrition |date=1 March 2007 |volume=85 |issue=3 |pages=803–807 |doi=10.1093/ajcn/85.3.803}}</ref><ref>{{cite journal |last1=Weiss |first1=Lauren A |last2=Barrett-Connor |first2=Elizabeth |last3=von Mühlen |first3=Denise |title=Ratio of n–6 to n–3 fatty acids and bone mineral density in older adults: the Rancho Bernardo Study |journal=The American Journal of Clinical Nutrition |date=1 April 2005 |volume=81 |issue=4 |pages=934–938 |doi=10.1093/ajcn/81.4.934}}</ref> ||
 
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| 1890 || Scientific development || It is written that “fat stands between the two great nutrients, proteids [proteins] on the one hand and carbohydrates on the other, and we find that we can indulge in considerable latitude as to its use. When we wish to get our food in a more condensed form, we can use fats freely.<ref name="Lichtenstein"/> ||
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| 2005 || Scientific development || Metathesis || || {{w|Yves Chauvin}}, {{w|Robert H. Grubbs}}, and Richard R. Schrock are awarded the {{w|Nobel Prize in Chemistry}} for their pioneering work in metathesis catalyst development (Grubbs and Schrock) and elucidation of the reaction mechanism (Chauvin).<ref name="Ahmadvvddvd"/> ||
 
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| 1901 || Scientific development || German chemist {{w|Wilhelm Normann}} experiments with hydrogenation catalysts and successfully induces the hydrogenation of liquid fat, producing semisolid fat, which came to be known as trans fat.<ref name="Encyclopedia Britannicav">{{cite web |title=Trans fat {{!}} food product |url=https://www.britannica.com/science/trans-fat |website=Encyclopedia Britannica |access-date=5 October 2021 |language=en}}</ref> || {{w|Germany}}
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| 2006 (January 1) || Policy || {{w|Label|Labeling}} || {{w|Trans fat}} || The first direct regulation of {{w|trans fat}} by the United States {{w|FDA}} is a requirement that it be labeled in amounts above 0.5g per serving, which takes effect on January 1.<ref>{{cite web |title=301. Mono- and diglycerides (WHO Food Additives Series 5) |url=http://www.inchem.org/documents/jecfa/jecmono/v05je44.htm |website=inchem.org |access-date=13 October 2021}}</ref> || {{w|United States}}
 
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| 1903 || Scientific development || German chemist {{w|Wilhelm Normann}} patents the hydrogenation of liquid oils.<ref name="Encyclopedia Britannicav"/> || {{w|Germany}}
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| 2006 || Research || {{w|Bone density}} || [[w:Saturated fat|Saturated]] || A study indicates that the intake of saturated fat has a negative effect on the [[w:osteoporosis|mineral density of bones]]. The study suggests that men may be particularly vulnerable.<ref>{{cite journal |last1=Corwin |first1=Rebecca L. |last2=Hartman |first2=Terryl J. |last3=Maczuga |first3=Steven A. |last4=Graubard |first4=Barry I. |title=Dietary Saturated Fat Intake Is Inversely Associated with Bone Density in Humans: Analysis of NHANES III1 |journal=The Journal of Nutrition |date=1 January 2006 |volume=136 |issue=1 |pages=159–165 |doi=10.1093/jn/136.1.159}}</ref> ||
 
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| 1905 || Scientific development || Pekelharing observes that mice could not grow optimally while consuming only a mixture of purified fat, {{w|carbohydrate}}, and {{w|protein}}.<ref name="Lichtenstein"/> ||
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| 2006 || Policy || {{w|Trans fat}} (artificial) || {{w|Trans fat}} || {{w|New York City}} passes a law banning artificial trans fats in all restaurant foods.<ref name="Popular Scienceww">{{cite web |title=New York City's trans fat ban really did keep people out of the hospital |url=https://www.popsci.com/new-york-trans-fat-ban/ |website=Popular Science |access-date=5 October 2021 |date=18 March 2019}}</ref> || {{w|United States}}
 
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| 1911 || Fat consumption || The first food product developed that contains {{w|trans fat}} is Crisco vegetable shortening, introduced by {{w|Procter & Gamble}}.<ref name="Encyclopedia Britannicav"/> || {{w|United States}}
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| 2006 || Policy || {{w|Trans fat}} || {{w|Trans fat}} || Argentina starts requiring trans fat content labeling.<ref>{{cite web |title=A.N.M.A.T. |url=http://www.anmat.gov.ar/resultados.asp?cx=018082787451070703178%3Arx-vbt5pdfu&cof=FORID%3A10&ie=UTF-8&q=Capitulo_V.pdf |website=www.anmat.gov.ar |access-date=12 October 2021}}</ref> || {{w|Argentina}}
 
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| 1912 || Scientific development || Jacob Rosenbloom and William J. Gies propose the substitution of "lipoid" by "lipin".<ref>{{cite journal | vauthors = Rosenbloom J, Gies WJ | title = Suggestion to teachers of biochemistry. I. A proposed chemical classification of lipins, with a note on the intimate relation between cholesterols and bile salts. | journal = Biochem. Bull. | date = 1911 | volume = 1 | pages = 51–6 | url = https://www.biodiversitylibrary.org/item/27005#page/87/mode/1up }}</ref> ||
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| 2006 || Scientific development || {{w|Shortening}} || {{w|Trans fat}} || An analysis of some industrialized foods finds up to 30% "trans fats" in artificial shortening, 10% in breads and cake products, 8% in cookies and crackers, 4% in salty snacks, 7% in cake frostings and sweets, and 26% in margarine and other processed spreads.<ref name=tarr2006>{{cite journal | vauthors = Tarrago-Trani MT, Phillips KM, Lemar LE, Holden JM | title = New and existing oils and fats used in products with reduced trans-fatty acid content | journal = Journal of the American Dietetic Association | volume = 106 | issue = 6 | pages = 867–80 | date = June 2006 | pmid = 16720128 | doi = 10.1016/j.jada.2006.03.010 }}</ref> ||
 
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| 1912 || Scientific development || American biochemist {{w|Elmer McCollum}} at the University of Wisconsin begins using rats instead of humans in his experiments rather than cows and sheep. He finds the first fat-soluble vitamin, {{w|Vitamin A}}, and discovers that rats are healthier when they are fed {{w|butter}} rather than {{w|lard}}, as butter contains more Vitamin A.<ref name="Natural Healers">{{cite web |title=Read How Nutrition Careers Have Evolved Over Time |url=https://www.naturalhealers.com/blog/nutrition-history/ |website=Natural Healers |access-date=14 September 2021 |date=7 October 2016}}</ref>|| {{w|United States}}
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| 2006 || Scientific development || {{w|Cardiovascular disease}} || {{w|Trans fat}} || A study published in the ''New England Journal of Medicine'' shows that, for every 2 percent of calorie intake that comes from trans fats, a person's heart disease risk increases by 23 percent.<ref>{{cite journal |last1=Mozaffarian |first1=Dariush |last2=Katan |first2=Martijn B. |last3=Ascherio |first3=Alberto |last4=Stampfer |first4=Meir J. |last5=Willett |first5=Walter C. |title=Trans fatty acids and cardiovascular disease |journal=The New England Journal of Medicine |date=13 April 2006 |volume=354 |issue=15 |pages=1601–1613 |doi=10.1056/NEJMra054035 |url=https://pubmed.ncbi.nlm.nih.gov/16611951/ |issn=1533-4406}}</ref> ||
 
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| 1913 || Scientific development || A “fat-soluble A” factor necessary to support life is identified. This factor is thought to cure {{w|xerophthalmia}} and {{w|rickets}}.<ref name="Lichtenstein"/> ||
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| 2007 || Scientific development || {{w|Palm oil}} || [[W:Interesterified fat|Interesterified]] || A study funded by the Malaysian Palm Oil Board<ref name=sund2007>{{Cite journal | vauthors=Sundram K, Karupaiah T, Hayes K | year=2007 | title=Stearic acid-rich interesterified fat and trans-rich fat raise the LDL/HDL ratio and plasma glucose relative to palm olein in humans | url=http://www.nutritionandmetabolism.com/content/pdf/1743-7075-4-3.pdf | journal=Nutr Metab | volume=4 | pages=3 | doi=10.1186/1743-7075-4-3 | pmc=1783656 | pmid=17224066 |}}</ref> claims that replacing natural {{w|palm oil}} by other interesterified or partial hydrogenated fats cause adverse health effects, such as higher [[w:low-density lipoprotein|LDL]]/[[w:high-density lipoprotein|HDL]] ratio and {{w|plasma glucose level}}s.  However, these effects could be attributed to the higher percentage of saturated acids in the IE and partially hydrogenated fats, rather than to the IE process itself.<ref>{{cite journal |last1=Destaillats |first1=Frédéric |last2=Moulin |first2=Julie |last3=Bezelgues |first3=Jean-Baptiste |title=Letter to the editor: healthy alternatives to trans fats |journal=Nutrition & Metabolism |date=2007 |volume=4 |issue=1 |pages=10 |doi=10.1186/1743-7075-4-10}}</ref><ref>{{cite journal |last1=Mensink |first1=Ronald P |last2=Zock |first2=Peter L |last3=Kester |first3=Arnold DM |last4=Katan |first4=Martijn B |title=Effects of dietary fatty acids and carbohydrates on the ratio of serum total to HDL cholesterol and on serum lipids and apolipoproteins: a meta-analysis of 60 controlled trials |journal=The American Journal of Clinical Nutrition |date=1 May 2003 |volume=77 |issue=5 |pages=1146–1155 |doi=10.1093/ajcn/77.5.1146}}</ref> ||
 
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| 1920 || Scientific development || Bloor introduces a new classification for "lipoids": simple lipoids (greases and waxes), compound lipoids (phospholipoids and glycolipoids), and the derived lipoids (fatty acids, alcohols, sterols).<ref>{{cite journal |last1=Bloor |first1=W. R. |title=Outline of a classification of the lipoids |journal=Experimental Biology and Medicine |date=1 March 1920 |volume=17 |issue=6 |pages=138–140 |doi=10.3181/00379727-17-75}}</ref><ref>{{cite book | vauthors = Christie WW, Han X | date = 2010 | title = Lipid Analysis: Isolation, Separation, Identification and Lipidomic Analysis | publisher = The Oily Press | location = Bridgwater, England | url = https://books.google.com/books?id=XaggBQAAQBAJ | isbn = 9780857097866 }}</ref> ||
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| 2007 || Scientific development || {{w|Phytosterol}} || || P.G. Bradford and A.B. Awad claim a cancer-protective effect for {{w|phytosterol}}s in humans.<ref name="Phytosterol este"/><ref>{{cite journal |last1=Bradford |first1=Peter G. |last2=Awad |first2=Atif B. |title=Phytosterols as anticancer compounds |journal=Molecular Nutrition & Food Research |date=February 2007 |volume=51 |issue=2 |pages=161–170 |doi=10.1002/mnfr.200600164}}</ref> || {{w|United States}}
 
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| 1923 || Scientific development || The word ''{{w|lipid}}e'', which stems etymologically from Greek λίπος, ''lipos'' 'fat', is introduced by French pharmacologist {{w|Gabriel Bertrand}}.<ref>{{cite journal | vauthors = Bertrand G | year = 1923 | title = Projet de reforme de la nomenclature de Chimie biologique | url =https://books.google.com/books?id=qO0tAQAAIAAJ&pg=PA104 | journal = Bulletin de la Société de Chimie Biologique | volume = 5 | pages = 96–109 }}</ref> ||
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| 2007 || Scientific development || {{w|Infertility}} || {{w|Trans fat}} || A study finds that each 2% increase in the intake of energy from trans unsaturated fats, as opposed to that from carbohydrates, is associated with a 73% greater risk of ovulatory infertility.<ref name=chav2007zp>{{cite journal | vauthors = Chavarro JE, Rich-Edwards JW, Rosner BA, Willett WC | title = Dietary fatty acid intakes and the risk of ovulatory infertility | journal = The American Journal of Clinical Nutrition | volume = 85 | issue = 1 | pages = 231–7 | date = January 2007 | pmid = 17209201 | doi = 10.1093/ajcn/85.1.231 | doi-access = free }}</ref> ||
 
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| 1929 || Scientific development || George and Mildred Burr report that dietary fatty acid is required to prevent a deficiency disease that occurred in rats fed a fat-free diet. They conclude that fatty acids are essential nutrients and show that linoleic acid preventa the disease and is an essential fatty acid. The Burrs surmise that other unsaturated fatty acids are essential and subsequently demonstrate that linolenic acid, the omega-3 fatty acid analog of linoleic acid, is also an essential fatty acid.<ref name="Spector"/> || {{w|United States}}
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| 2007 || Program launch || {{w|Cardiovascular disease}} || {{w|Trans fat}} || The {{w|American Heart Association}} launches its "Face the Fats" campaign to help educate the public about the negative effects of trans fats.<ref>{{cite journal | vauthors = Eckel RH, Kris-Etherton P, Lichtenstein AH, Wylie-Rosett J, Groom A, Stitzel KF, Yin-Piazza S | title = Americans' awareness, knowledge, and behaviors regarding fats: 2006-2007 | language = en | journal = Journal of the American Dietetic Association | volume = 109 | issue = 2 | pages = 288–96 | date = February 2009 | pmid = 19167956 | doi = 10.1016/j.jada.2008.10.048 | url = http://jandonline.org/article/S0002-8223(08)02041-5/pdf }}</ref> || {{w|United States}}
 
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| 1947 || Literature || English chemist {{w|Thomas Percy Hilditch}} publishes''The chemical constitution  of natural fats'', which would become famous. Hilditch claims that “unanimity has not yet been reached in the terminology to be adopted in classifying the various types of naturally occurring compounds in which fatty acids are present … even a collective title for the whole group is not completely settled“.<ref name="cyberlipid.gerli.com">{{cite web |title=Description of various lipids {{!}} Cyberlipid |url=http://cyberlipid.gerli.com/description/ |website=cyberlipid.gerli.com |access-date=16 October 2021}}</ref> || {{w|United Kingdom}}
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| 2008 || Scientific development || Plant sterol || || {{w|The European Food Safety Authority}} judges that the available scientific evidence justifying the claim that plant sterols lower/reduce blood cholesterol, and that blood cholesterol lowering may reduce the risk of coronary heart disease.<ref name="Phytosterol este">{{cite web |title=Phytosterol esters (Plant Sterol and Stanol Esters) |url=https://www.ifst.org/resources/information-statements/phytosterol-esters-plant-sterol-and-stanol-esters |website=IFST |access-date=26 October 2021 |language=en |date=1 November 2011}}</ref> ||  
 
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| 1950 || Scientific development || Genetically obese mice are first described.<ref name="Pond">{{cite book |last1=Pond |first1=Caroline M. |title=The Fats of Life |date=13 August 1998 |publisher=Cambridge University Press |isbn=978-0-521-63577-6 |url=https://books.google.com.ar/books/about/The_Fats_of_Life.html?id=Usto_MdMXYMC&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
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| 2008 || Recommendation || {{w|Type 2 diabetes}} || || The American Diabetes Association recommends low-carbohydrate or low-fat diets for weight management in patients with established {{w|type 2 diabetes}}, while the amount of monounsaturated fatty acids is not specified.<ref>{{cite journal |last1=Schwingshackl |first1=L. |last2=Strasser |first2=B. |last3=Hoffmann |first3=G. |title=Effects of Monounsaturated Fatty Acids on Glycaemic Control in Patients with Abnormal Glucose Metabolism: A Systematic Review and Meta-Analysis |journal=Annals of Nutrition and Metabolism |date=2011 |volume=58 |issue=4 |pages=290–296 |doi=10.1159/000331214}}</ref> || {{w|United States}}
 
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| 1950–1970 || || In 1950, the food fat marketed in the United States is split approximately equally between animal fats (lard, tallow and butter) and edible vegetable oils. By 1970, edible vegetable oils would account for three-fourths of the total and animal fats only one-fourth.<ref>{{cite web |title=What are fatty acids and their derivatives? |url=https://www.tdx.cat/bitstream/handle/10803/8595/10.pdf?sequence=13 |website=tdx.cat}}</ref> || {{w|United States}}
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| 2008 || Policy || {{w|Trans fat}} || {{w|Trans fat}} || Switzerland bans trans fats.<ref>{{cite book |last1=Scherer |first1=Lauri S. |title=Artificial Ingredients |date=28 December 2012 |publisher=Greenhaven Publishing LLC |isbn=978-0-7377-6284-6 |url=https://books.google.com.ar/books?id=9oRmDwAAQBAJ&pg=PA92&lpg=PA92&dq=Switzerland+(2008)+bans+trans+fat&source=bl&ots=eLbNsWasxa&sig=ACfU3U2eOZfVVJCs4XZZPSDZ1BFW8uI7Iw&hl=en&sa=X&ved=2ahUKEwiB0ua0lLTzAhWvpZUCHTkeCUYQ6AF6BAgKEAM#v=onepage&q=Switzerland%20(2008)%20bans%20trans%20fat&f=false |language=en}}</ref> || {{w|Switzerland}}
 
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| 1957 || Scientific development || Kummerow and colleagues<ref>{{cite journal |last1=Conner |first1=Robert L. |title=Interaction of Stigmasterol and 2,4-Dinitrophenol in the Growth of Tetrahymena piriformis |journal=Science |date=11 October 1957 |volume=126 |issue=3276 |pages=698–698 |doi=10.1126/science.126.3276.698-a}}</ref> find that lipid extracts of tissue specimens from 24 human subjects who died of heart disease contain ≤12.2% trans fatty acids in their adipose tissue, 14.4% in the liver, 9.3% in heart tissue, 8.8% in aortic tissue, and 8.8% in atheroma.<ref name="Kersten">{{cite journal |last1=Oteng |first1=Antwi-Boasiako |last2=Kersten |first2=Sander |title=Mechanisms of Action of trans Fatty Acids |journal=Advances in Nutrition |date=1 May 2020 |volume=11 |issue=3 |pages=697–708 |doi=10.1093/advances/nmz125}}</ref> ||
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| 2008 || Policy || {{w|Trans fat}} || {{w|Trans fat}} || {{w|Calgary}} becomes the first city in Canada to ban trans fats from restaurants and fast-food chains.<ref>{{cite book |last1=Sardesai |first1=Vishwanath |title=Introduction to Clinical Nutrition, Third Edition |date=11 October 2011 |publisher=CRC Press |isbn=978-1-4398-1818-3 |url=https://books.google.com.ar/books?id=Ywi8ftrYxsEC&pg=PA73&lpg=PA73&dq=Calgary+in+2008+bans+trans+fat&source=bl&ots=PvsHu3frUb&sig=ACfU3U3NXdVEtuDjGm1sc5qnq4v833LOow&hl=en&sa=X&ved=2ahUKEwjRkuulmrTzAhXkq5UCHcAGDoMQ6AF6BAgbEAM#v=onepage&q=Calgary%20in%202008%20bans%20trans%20fat&f=false |language=en}}</ref> || {{w|Canada}}
 
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| 1964 || Scientific development || {{w|Konrad Bloch}} and {{w|Feodor Lynen}} share the {{w|Nobel Prize in Physiology or Medicine}} for their discoveries concerning some of the mechanisms and methods of regulation of cholesterol and {{w|fatty acid metabolism}}.<ref>{{Cite web|url=https://www.nobelprize.org/nobel_prizes/medicine/laureates/1964/|title=The Nobel Prize in Physiology or Medicine, 1964|publisher==Nobel Prize, Nobel Media }}</ref> ||
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| 2008 || Scientific development || {{w|Palmitoleic acid}} || [[w:unsaturated fat|Unsaturated]] ([[w:Monounsaturated fat|monounsaturated]] ([[w:omega-7 fatty acid|ω−7]])) || Researchers at {{w|Harvard University}} discover that the palmitoleic acid in {{w|omega-7 fatty acid}} acts like a {{w|hormone}} in the human body, rather than a {{w|protein}}, and is what the weight loss factor is attributed to; it's this part of the amino acid that fights against obesity and its related diseases and conditions.<ref>{{cite web |title=The Truth About Purified Omega 7, Sea Buckthorn, & Palmitic Acid |url=https://www.sibu.com/blogs/news/the-truth-about-purified-omega-7-sea-buckthorn-palmitic-acid |website=Sibu Seaberry |access-date=28 October 2021 |language=en}}</ref><ref>{{cite web |title=Omega-7: The New 'Healthy Fat'? - Heart Health Center - Everyday Health |url=https://www.everydayhealth.com/heart-health/omega-7-the-new-healthy-fat.aspx |website=EverydayHealth.com |access-date=28 October 2021 |language=en}}</ref> || {{w|United States}}
 
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| 1975 || Policy || Guidelines for voluntary nutrition labeling start taking effect in the {{w|United States}}. Foods are labeled on the basis of total, saturated (lauric, myristic, palmitic, and stearic acids), and polyunsaturated fatty acids and cholesterol content. These standards are established based on the observed association between saturated fat intake and risk of {{w|cardiovascular disease}}.<ref name="Lichtenstein"/> || {{w|United States}}
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| 2008 || Scientific development || Weight loss || || A study published in the ''New England Journal of Medicine'', looking at more than 300 subjects who tried either a low-fat, a low-carb or a {{w|Mediterranean diet}}, finds that people on the low-fat diet lost less weight than those on the low-carb or Mediterranean diet, both of which feature high amounts of fat. These results match multiple other studies having found that it’s very difficult to lose weight on a very low-fat diet, possibly because fat and meat can produce a sense of satiety that’s harder to achieve with carbs, making it easier to simply stop eating.<ref name="Ending the"/> ||
 
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| 1976 || Scientific development || The {{w|Nurses' Health Study}} is incepted as a {{w|cohort study}} following 120,000 female nurses. The researchers would analyze data from 900 coronary events from the study's [[w:statistical population|population]] during 14 years of followup, and would determine that a nurse's {{w|coronary artery disease}} (CAD) risk roughly doubled ({{w|relative risk}} of 1.93, {{w|confidence interval}}: 1.43 to 2.61) for each 2% increase in trans fat calories consumed (instead of carbohydrate calories). By contrast, for each 5% increase in saturated fat calories (instead of carbohydrate calories) there was a 17% increase in risk ({{w|relative risk}} of 1.17, [[w:confidence interval|CI]]: 0.97 to 1.41). The replacement of saturated fat or trans unsaturated fat by cis (unhydrogenated) unsaturated fats is associated with larger reductions in risk than an isocaloric replacement by carbohydrates.<ref name=hu1997/> The researchers would also report on the benefits of reducing trans fat consumption. Replacing 2% of {{w|food energy}} from trans fat with non-trans {{w|unsaturated fat}}s more than halves the risk of CAD (53%). By comparison, replacing a larger 5% of food energy from saturated fat with non-trans unsaturated fats reduces the risk of CAD by 43%. This study provides the major evidence for the effect of trans fat on {{w|coronary artery disease}}.<ref name=hu1997>{{cite journal | vauthors = Hu FB, Stampfer MJ, Manson JE, Rimm E, Colditz GA, Rosner BA, Hennekens CH, Willett WC | display-authors = 6 | title = Dietary fat intake and the risk of coronary heart disease in women | journal = The New England Journal of Medicine | volume = 337 | issue = 21 | pages = 1491–9 | date = November 1997 | pmid = 9366580 | doi = 10.1056/NEJM199711203372102 }}</ref> || {{w|United States}}   
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| 2009 || Literature || Oil, {{w|fat}} || || Frank Gunstone publishes ''Oils and Fats in the Food Industry''.<ref>{{cite book |last1=Gunstone |first1=F. D. |title=Oils and fats in the food industry |date=2008 |publisher=Wiley-Blackwell Pub |location=Oxford |isbn=9781405171212}}</ref> ||  
 
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| 1976 || Scientific development || A summary of the {{w|lipid hypothesis}} describes it as: "measures used to lower the plasma lipids in patients with {{w|hyperlipidemia}} will lead to reductions in new events of {{w|coronary heart disease}}".<ref>{{cite journal | author = Ahrens EH Jr | date = Jul 1976 | title = The management of hyperlipidemia: whether, rather than how | journal = Ann Intern Med | volume = 85 | issue = 1| pages = 87–93 | pmid = 779574 | doi=10.7326/0003-4819-85-1-87}}</ref> ||
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| 2009 || {{w|Scientific development}} || {{w|Asthma}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[w:Omega-3 fatty acid|ω-3]], [[w:Omega-6 fatty acid|ω-6]])) || Artemis P. Simopoulos suggests that a [[w:Omega-6 fatty acid|ω-6]]/[[w:Omega-3 fatty acid|ω-3]] ratio of 5:1 exerts beneficial effects upon {{w|asthma}}, while a ratio of 10:1 has adverse effects.<ref>{{cite journal |last1=Simopoulos |first1=Artemis P. |title=Omega&ndash;6/Omega&ndash;3 Essential Fatty Acids: Biological Effects |journal=World Review of Nutrition and Dietetics |date=2008 |volume=99 |pages=1–16 |doi=10.1159/000192755}}</ref><ref name="Gómez Candela"/>
 
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| 1983 || Scientific development || Researchers show that the concentration of trans 18:1 and 16:1 fatty acids is 6.8% higher in the {{w|adipose tissue}} of individuals who died of ischemic heart disease compared with individuals who died of other causes.<ref>{{cite journal |last1=Thomas |first1=L H |last2=Winter |first2=J A |last3=Scott |first3=R G |title=Concentration of 18:1 and 16:1 transunsaturated fatty acids in the adipose body tissue of decedents dying of ischaemic heart disease compared with controls: analysis by gas liquid chromatography. |journal=Journal of Epidemiology & Community Health |date=1 March 1983 |volume=37 |issue=1 |pages=16–21 |doi=10.1136/jech.37.1.16}}</ref><ref>{{cite journal |last1=Thomas |first1=L H |last2=Winter |first2=J A |last3=Scott |first3=R G |title=Concentration of transunsaturated fatty acids in the adipose body tissue of decedents dying of ischaemic heart disease compared with controls. |journal=Journal of Epidemiology & Community Health |date=1 March 1983 |volume=37 |issue=1 |pages=22–24 |doi=10.1136/jech.37.1.22}}</ref><ref name="Kersten"/> ||
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| 2010 || Recommendation || {{w|Cardiovacsular disease}}, {{w|obesity}} || [[w:Saturated fat|Saturated]], [[w:Unsaturated fat|Unsaturated]] || A conference of the {{w|American Dietetic Association}} takes place, at which concerns are expressed that a blanket recommendation to avoid saturated fats could drive people to also reduce the amount of {{w|polyunsaturated fat}}s,  which may have health benefits, and/or replace fats by refined carbohydrates — which carry a high risk of obesity and heart disease.<ref>{{cite journal |last1=Zelman |first1=Kathleen |title=The Great Fat Debate: A Closer Look at the Controversy—Questioning the Validity of Age-Old Dietary Guidance |journal=Journal of the American Dietetic Association |date=May 2011 |volume=111 |issue=5 |pages=655–658 |doi=10.1016/j.jada.2011.03.026}}</ref> || {{w|United States}}
 
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| 1987 || Recommendation || The report of {{w|National Cholesterol Education Program}}, Adult Treatment Panels suggests the total blood cholesterol level should be: < 200 mg/dL normal blood cholesterol, 200–239 mg/dL borderline-high, > 240 mg/dL high cholesterol.<ref name="pmid3422148">{{cite journal | title = Report of the National Cholesterol Education Program Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults. The Expert Panel | journal = Archives of Internal Medicine | volume = 148 | issue = 1 | pages = 36–69 | date = January 1988 | pmid = 3422148 | doi = 10.1001/archinte.148.1.36 }}</ref> ||
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| 2010 (April 15) || Recommendation || {{w|Trans fat}} || {{w|Trans fat}} || A ''[[w:The BMJ|British Medical Journal]]'' editorial calls for trans fats to be "virtually eliminated in the United Kingdom by next year".<ref>{{cite journal |last1=Mozaffarian |first1=D. |last2=Stampfer |first2=M. J. |title=Removing industrial trans fat from foods |journal=BMJ |date=15 April 2010 |volume=340 |issue=apr15 1 |pages=c1826–c1826 |doi=10.1136/bmj.c1826}}</ref> || {{w|United Kingdom}}
 
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| 1990 || Policy || The {{w|Nutrition Labeling and Education Act of 1990}} becomes effective in the {{w|United States}}. It focuses on saturated fat (redefined as all saturated fatty acids) and calls for it to be labeled based on grams per serving and percentage of total energy. The labeling of monounsaturated and polyunsaturated fatty acids is deemed optional. These standards are based on the association between saturated fat intake and risk of cardiovascular disease, but also on observed associations with certain forms of cancer, diabetes, and other diseases.<ref name="Lichtenstein"/> || {{w|United States}}
+
| 2010 || Scientific development || {{w|Cardiovascular disease}} || [[w:Saturated fat|Saturated]] || An evaluation of 21 studies and 350,000 subjects finds that saturated fat is not associated with an increased risk of coronary heart disease.<ref name="Everyone W"/> The meta-analysis concludes that there is no significant evidence that saturated fat is associated with an increased risk of cardiovascular disease.<ref name="Ending the">{{cite web |title=Ending the War on Fat |url=https://time.com/2863227/ending-the-war-on-fat/ |website=Time |access-date=3 December 2021 |language=en}}</ref> ||
 
|-
 
|-
| 1990 || Scientific development || Mensink and Katan demonstrate the plasma cholesterol-raising effect of industrially produced trans-octadecenoic acids in human volunteers.<ref>{{cite journal |last1=Mensink |first1=Ronald P. |last2=Katan |first2=Martijn B. |title=Effect of Dietary trans Fatty Acids on High-Density and Low-Density Lipoprotein Cholesterol Levels in Healthy Subjects |journal=New England Journal of Medicine |date=16 August 1990 |volume=323 |issue=7 |pages=439–445 |doi=10.1056/NEJM199008163230703}}</ref> ||
+
| 2010 || General intake || {{w|Western pattern diet}} || {{w|Trans fat}} || According to the {{w|FDA}}, the average American consumes 5.8 grams of trans fat per day (2.6% of energy intake).<ref>{{cite web |title=Revealing Trans Fats |url=https://web.archive.org/web/20100311162752/http://www.pueblo.gsa.gov/cic_text/food/reveal-fats/reveal-fats.htm |website=web.archive.org |access-date=13 October 2021 |date=11 March 2010}}</ref> || {{w|United States}}
 
|-
 
|-
| 1990 || Scientific development || A Dutch study reports that the trans fatty acids do have an adverse effect on serum cholesterol.<ref name="Enig"/> || {{w|Netherlands}}
+
| 2011 || Scientific development || {{w|Triglyceride}} || || The American Heart Association's scientific statement says {{w|triglyceride}} is not a direct cause of {{w|atherosclerosis}} but it is a marker of {{w|cardiovascular disease}} risk.<ref>{{cite journal |last1=Miller |first1=Michael |last2=Stone |first2=Neil J. |last3=Ballantyne |first3=Christie |last4=Bittner |first4=Vera |last5=Criqui |first5=Michael H. |last6=Ginsberg |first6=Henry N. |last7=Goldberg |first7=Anne Carol |last8=Howard |first8=William James |last9=Jacobson |first9=Marc S. |last10=Kris-Etherton |first10=Penny M. |last11=Lennie |first11=Terry A. |last12=Levi |first12=Moshe |last13=Mazzone |first13=Theodore |last14=Pennathur |first14=Subramanian |title=Triglycerides and Cardiovascular Disease: A Scientific Statement From the American Heart Association |journal=Circulation |date=24 May 2011 |volume=123 |issue=20 |pages=2292–2333 |doi=10.1161/CIR.0b013e3182160726}}</ref><ref>{{cite web |title=Can High Triglycerides Increase Your Risk of Stroke? |url=https://www.verywellhealth.com/high-triglycerides-and-your-stroke-risk-697864 |website=Verywell Health |access-date=26 October 2021 |language=en}}</ref> || {{w|United States}}
 
|-
 
|-
| 1991 || Recommendation || The U.K. Committee on Medical Aspects of Health (COMA) recommends that trans fatty acids be limited to 2% of the caloric (energy) intake.<ref name="Enig">{{cite book |last1=Enig |first1=Mary G. |title=Know Your Fats: The Complete Primer for Understanding the Nutrition of Fats, Oils and Cholesterol |date=1 January 2000 |publisher=Bethesda Press |isbn=978-0-9678126-0-1 |url=https://books.google.com.ar/books/about/Know_Your_Fats.html?id=2YKkAAAACAAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> || {{w|United Kingdom}}
+
| 2011 || Recommendation || {{w|Cardiovascular disease}} || || A study by heart researchers suggest people focus on eating high-quality food instead of particular fat quantities.<ref>{{cite journal |last1=Franklin |first1=Barry A. |last2=Cushman |first2=Mary |title=Recent Advances in Preventive Cardiology and Lifestyle Medicine |journal=Circulation |date=24 May 2011 |volume=123 |issue=20 |pages=2274–2283 |doi=10.1161/CIRCULATIONAHA.110.981613 |url=https://www.ahajournals.org/doi/full/10.1161/circulationaha.110.981613}}</ref> ||
 
|-
 
|-
| 1993 || Recommendation || Health advocacy groups start calling for fast food chains to stop frying with partially hydrogenated oil.<ref name="latimes.comw"/> ||  
+
| 2012 || Recommendation || Industrially produced trans fatty acid || {{w|Trans fat}} || The Conseil Supérieur de la Santé in {{w|Belgium}} publishes a science-policy advisory report on industrially produced trans fatty acids that focuses on the general population. Its recommendation to the legislature is to prohibit more than 2 g of trans fatty acids per 100 g of fat in food products.<ref>{{cite web| url=http://www.health.belgium.be/internet2Prd/groups/public/@public/@shc/documents/ie2divers/19080447_fr.pdf|title= acides gras trans d'origine industrielle|website=Avis du Conseil Supérieur de la Santé N° 8666|date=July 2012 |editor=Conseil Supérieur de la Santé|access-date=12 October 2021}}</ref> || {{w|Belgium}}
 
|-
 
|-
| 1993 || Policy || The United States {{w|FDA}} requires that saturated fat and cholesterol be listed on food labels.<ref name="latimes.comw"/> || {{w|United States}}
+
| 2012 || Scientific development || Mental health || {{w|Trans fat}} || An observational analysis of subjects of an earlier study finds a strong relation between dietary trans fat acids and self-reported behavioral aggression and irritability, suggesting but not establishing causality.<ref name=golo2012>{{cite journal | vauthors = Golomb BA, Evans MA, White HL, Dimsdale JE | title = Trans fat consumption and aggression | journal = PLOS ONE | volume = 7 | issue = 3 | pages = e32175 | year = 2012 | pmid = 22403632 | pmc = 3293881 | doi = 10.1371/journal.pone.0032175}}</ref> ||
 
|-
 
|-
| 1994 || Statistics || A study estimates that over 30,000 cardiac deaths per year in the United States are attributable to the consumption of trans fats.<ref>{{cite journal |last1=Willett |first1=W C |last2=Ascherio |first2=A |title=Trans fatty acids: are the effects only marginal? |journal=American Journal of Public Health |date=May 1994 |volume=84 |issue=5 |pages=722–724 |doi=10.2105/AJPH.84.5.722}}</ref> ||
+
| 2013 || Scientific development || Industrial trans fatty acid || {{w|Trans fat}} || A team of Dutch scientists confidently write that "the detrimental effects of industrial trans fatty acids on heart health are beyond dispute".<ref name="Penders"/> || {{w|Netherlands}}
 
|-
 
|-
| 1996 || Literature || F. D Gunstone publishes ''Fatty acid and lipid chemistry''.<ref>{{cite book |last1=Gunstone |first1=F. D. |title=Fatty Acid and Lipid Chemistry |date=30 June 1996 |publisher=Springer |isbn=978-0-8342-1342-5 |url=https://books.google.com.ar/books/about/Fatty_Acid_and_Lipid_Chemistry.html?id=Kjkh9oNTVKUC&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
+
| 2013 (late year) || Policy || Oil ([[w:hydrogenated oil|hydrogenated]]) || || The United States {{w|FDA}} announces plans to remove partially {{w|hydrogenated oil}}s from the list of generally regarded as safe (GRAS).<ref name="Ahmadvvddvd"/> || {{w|United States}}
 
|-
 
|-
| 1997 || Statistics || The {{w|United States Department of Agriculture}} (USDA) reports that fat consumption by humans in the United States can exceed 100 g/day.<ref name="Driskell">{{cite book |last1=Driskell |first1=Judy A. |title=Sports Nutrition: Fats and Proteins |date=19 April 2007 |publisher=CRC Press |isbn=978-1-4200-0850-0 |url=https://books.google.com.pr/books?id=ppt5u8XsFeYC |language=en}}</ref> || {{w|United States}}
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| 2014 (March) || Scientific development || {{w|Cardiovascular disease}} || [[w:Saturated fat|Saturated]] || An article published in the ''Annals of Internal Medicine'' reports that eating less saturated fat doesn’t actually lower a person’s risk for heart disease. The study concludes that the evidence does not clearly support cardiovascular guidelines that encourage high consumption of polyunsaturated fatty acids and low consumption of total saturated fats.<ref>{{cite web |title=Is Butter Really Back? |url=https://www.hsph.harvard.edu/magazine/magazine_article/is-butter-really-back/ |website=Harvard Public Health Magazine |access-date=2 December 2021 |date=10 August 2016}}</ref><ref>{{cite journal |last1=Chowdhury |first1=Rajiv |last2=Warnakula |first2=Samantha |last3=Kunutsor |first3=Setor |last4=Crowe |first4=Francesca |last5=Ward |first5=Heather A. |last6=Johnson |first6=Laura |last7=Franco |first7=Oscar H. |last8=Butterworth |first8=Adam S. |last9=Forouhi |first9=Nita G. |last10=Thompson |first10=Simon G. |last11=Khaw |first11=Kay-Tee |last12=Mozaffarian |first12=Dariush |last13=Danesh |first13=John |last14=Di Angelantonio |first14=Emanuele |title=Association of dietary, circulating, and supplement fatty acids with coronary risk: a systematic review and meta-analysis |journal=Annals of Internal Medicine |date=18 March 2014 |volume=160 |issue=6 |pages=398–406 |doi=10.7326/M13-1788 |url=https://pubmed.ncbi.nlm.nih.gov/24723079/ |issn=1539-3704}}</ref>
 
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|-
| 1998 || Literature || Caroline M. Pond publishes ''The Fats of Life''.<ref>{{cite book |last1=Pond |first1=Caroline M. |title=The Fats of Life |date=13 August 1998 |publisher=Cambridge University Press |isbn=978-0-521-63577-6 |url=https://books.google.com.ar/books/about/The_Fats_of_Life.html?id=Usto_MdMXYMC&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
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| 2014 (July 23) || Recommendation || {{w|Sugar}} || || An article published on ''[[w:Time (magazine)|Time]]'' reports on an excesive focus on fats and suggests a turn into a focus on the harmful effect of {{w|sugar}}. The article reads: "Now it's becoming clear that even the saturated fat found in a medium-rare steak or a slab of butter has a more complex and, in some cases, benign effect on the body than previously thought. ... New research suggests that it's the overconsumption of carbohydrates, sugar and sweeteners that is chiefly responsible for the epidemics of obesity and Type 2 diabetes."<ref name="Belluz"/>
 
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| 2001 || Scientific development || One study finds that risk of {{w|diabetes}} is higher for those in the highest {{w|quartile}} of trans fat consumption.<ref name=hu2001zf>{{cite journal | vauthors = Hu FB, van Dam RM, Liu S | title = Diet and risk of Type II diabetes: the role of types of fat and carbohydrate | journal = Diabetologia | volume = 44 | issue = 7 | pages = 805–17 | date = July 2001 | pmid = 11508264 | doi = 10.1007/s001250100547}}</ref> ||
+
| 2014 || Scientific development || {{w|Butter}} || [[w:Saturated fat|Saturated]] || New York Times food writer Mark Bittman writes article titled ''Butter is back'', which goes through the research on how saturated fat isn't nearly as harmful as it was thought and argues that artificial foods (like margarine) should be ditched in favor of natural foods (like butter).<ref name="Belluz"/><ref>{{cite web |last1=Bittman |first1=Mark |title=Opinion {{!}} Butter Is Back |url=https://www.nytimes.com/2014/03/26/opinion/bittman-butter-is-back.html |website=The New York Times |access-date=2 December 2021 |date=25 March 2014}}</ref>
 
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|-
| 2003 || Recommendation || A report by the World Health Organization and the {{w|Food and Agriculture Organization}} (FAO) recommends limiting the saturated fatty acids to less than 10% of daily energy intake and less than 7% for high-risk groups.<ref name=who2003s>{{cite book |url= http://apps.who.int/iris/bitstream/10665/42665/1/WHO_TRS_916.pdf |title= Diet, Nutrition and the Prevention of Chronic Diseases (WHO technical report series 916) |publisher= World Health Organization |author = Joint WHO/FAO Expert Consultation |year= 2003 |pages=81–94 |isbn= 978-92-4-120916-8}}</ref> ||
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| 2014 || Policy || {{w|Fat}} || {{w|Certification mark}} || It becomes obligatory in Israel to mark food products with more than 2% of fat by weight.<ref>{{cite web|url=http://www.health.gov.il/NewsAndEvents/SpokemanMesseges/Pages/01042014.aspx|title=נכנסה לתוקף בישראל חובת סימון שומן טראנס על גבי אריזות מזון ארוז|website=health.gov.il}}</ref> || {{w|Israel}}
 
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|-
| 2003 || Scientific development || A meta-analysis finds a significant positive relationship between saturated fat and {{w|breast cancer}}.<ref name=boyd2003>{{cite journal |vauthors=Boyd NF, Stone J, Vogt KN, Connelly BS, Martin LJ, Minkin S | title = Dietary fat and breast cancer risk revisited: a meta-analysis of the published literature | journal = British Journal of Cancer | volume = 89| issue = 9 | pages = 1672–1685 | date = November 2003 | pmid = 14583769 | pmc = 2394401 | doi = 10.1038/sj.bjc.6601314 }}</ref> ||
+
| 2014 || Policy || {{w|Vegetable oil}} || || From December, all food products produced in the {{w|European Union}} are legally required to indicate the specific {{w|vegetable oil}} used in their manufacture, following the introduction of the Food Information to Consumers Regulation.<ref>{{citation
 +
| url=http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2011:304:0018:0063:EN:PDF
 +
| journal=Official Journal of the European Union
 +
  | date=2011-11-21
 +
| title=Regulation (EU) No 1169/2011 of the European Parliament and of the Council
 +
}}</ref> || {{w|European Union}}
 
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| 2003 || Scientific development || A randomized {{w|crossover study}} comparing the effect [[w:postprandial|of eating a meal]] on blood lipids of (relatively) cis and trans-fat-rich meals shows that {{w|cholesteryl ester}} transfer (CET) is 28% higher after the trans meal than after the cis meal and that lipoprotein concentrations are enriched in {{w|apolipoprotein}}(a) after the trans meals.<ref name=gatto2003>{{cite journal | vauthors = Gatto LM, Sullivan DR, Samman S | title = Postprandial effects of dietary trans fatty acids on apolipoprotein(a) and cholesteryl ester transfer | journal = The American Journal of Clinical Nutrition | volume = 77 | issue = 5 | pages = 1119–24 | date = May 2003 | pmid = 12716661 | doi = 10.1093/ajcn/77.5.1119}}</ref> ||
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| 2015 || Recommendation || {{w|Cholesterol}}, {{w|saturated fat}} || || The {{w|United States Department of Agriculture}} Dietary Guidelines Advisory Committee (DGAC) recommends that Americans eat as little dietary cholesterol as possible, because most foods that are rich in cholesterol are also high in {{w|saturated fat}} and thereby may increase the risk of cardiovascular disease.<ref>{{cite journal |last1=Goldman |first1=T. R. |title=Health Policy Brief: Final 2015-20 Dietary Guidelines for Americans |journal=Health Affairs |date=31 March 2016 |doi=10.1377/hpb20160331.683121 |url=https://www.healthaffairs.org/do/10.1377/hpb20160331.683121/full/ |access-date=7 June 2021}}</ref><ref>{{cite journal |last1=Soliman |first1=Ghada |title=Dietary Cholesterol and the Lack of Evidence in Cardiovascular Disease |journal=Nutrients |date=16 June 2018 |volume=10 |issue=6 |pages=780 |doi=10.3390/nu10060780}}</ref><ref name="Belluz"/> || {{w|United States}}
 
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| 2003 || Scientific development || A study published in {{w|Archives of Neurology}} suggests that the intake of both trans fats and saturated fats promotes the development of {{w|Alzheimer disease}}.<ref name=morr2003>{{cite journal | vauthors = Morris MC, Evans DA, Bienias JL, Tangney CC, Bennett DA, Aggarwal N, Schneider J, Wilson RS | display-authors = 6 | title = Dietary fats and the risk of incident Alzheimer disease | journal = Archives of Neurology | volume = 60 | issue = 2 | pages = 194–200 | date = February 2003 | pmid = 12580703 | doi = 10.1001/archneur.60.2.194}}</ref> ||
+
| 2015 || Recommendation || Partially hydrogenated oil || || The {{w|Food and Drug Administration}} Trusted Source states that partially hydrogenated oil is not safe, and removing it from food could prevent thousands of heart attacks each year.<ref name="www.medicalnewstoday.com">{{cite web |title=Hydrogenated oil: What is it? Is it bad? Learn more here |url=https://www.medicalnewstoday.com/articles/hydrogentated-oil#summary |website=www.medicalnewstoday.com |access-date=27 October 2021 |language=en |date=26 February 2021}}</ref> || {{w|United States}}
 
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| 2003 || Policy || Denmark pioneers the banning of industrially-produced trans fats in food.<ref>{{cite web |title=Denmark, trans fat ban pioneer: lessons for other countries |url=https://www.who.int/news-room/feature-stories/detail/denmark-trans-fat-ban-pioneer-lessons-for-other-countries |website=www.who.int |access-date=5 October 2021 |language=en}}</ref> || {{w|Denmark}}
+
| 2015 || Policy || Artificial trans-fat || {{w|Trans fat}} || The {{w|Food and Drug Administration}} decides that artificial trans-fat must be removed from the food supply in United States over the next 3 years because of health concern. However, all trans-fat would not be eliminated because those which occur naturally in meat and dairy products would still be permitted. FDA also agrees that small amount of TFAs produced during commercial refining can remain.<ref name="Ahmadvvddvd"/> || {{w|United States}}  
 
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| 2004 || Scientific development || A review concludes that "no lower safe limit of specific saturated fatty acid intakes has been identified" and recommends that the influence of varying saturated fatty acid intakes against a background of different individual lifestyles and genetic backgrounds should be the focus in future studies.<ref name=germ2004>{{cite journal |vauthors=German JB, Dillard CJ | title = Saturated fats: what dietary intake? | journal = American Journal of Clinical Nutrition | volume = 80 | issue = 3 | pages = 550–559 | date = September 2004 | pmid = 15321792 | doi = 10.1093/ajcn/80.3.550 | doi-access = free }}</ref> ||
+
| 2015 || Scientific development || {{w|Cardiovascular disease}} || [[w:Saturated fat|Saturated]] || A review by British international charitable organization [[w:Cochrane (organisation)|Cochrane]] of long-term randomized controlled trials on {{w|saturated fat}}, finds that reducing one's saturated fat intake can reduce the risk of {{w|cardiovascular disease}}, but it depends on what food is being replaced with, as people who replace saturated fat with unsaturated fat got the most benefit.<ref name="Belluz"/><ref>{{cite journal |last1=Hooper |first1=Lee |last2=Martin |first2=Nicole |last3=Abdelhamid |first3=Asmaa |last4=Davey Smith |first4=George |title=Reduction in saturated fat intake for cardiovascular disease |journal=The Cochrane Database of Systematic Reviews |date=10 June 2015 |issue=6 |pages=CD011737 |doi=10.1002/14651858.CD011737 |url=https://pubmed.ncbi.nlm.nih.gov/26068959/ |issn=1469-493X}}</ref> || {{w|United Kingdom}}
 
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| 2004 || Recommendation || The {{w|European Food Safety Authority}} produces a scientific opinion on trans fatty acids, surmising that "higher intakes of TFA may increase risk for {{w|coronary heart disease}}.<ref>{{cite web |title=Opinion of the Scientific Panel on Dietetic products, nutrition and allergies [NDA] related to the presence of trans fatty acids in foods and the effect on human health of the consumption of trans fatty acids {{!}} EFSA |url=https://www.efsa.europa.eu/en/efsajournal/pub/81 |website=www.efsa.europa.eu |access-date=12 October 2021 |language=en}}</ref> ||
+
| 2015 || Recommendation || {{w|Trans fat}} || {{w|Trans fat}} || The {{w|Food and Drug Administration}} Trusted Source declares that trans fat is not “generally recognized as safe” and has to be phased out by 2018.<ref name="www.medicalnewstoday.com"/> || {{w|United States}}  
 
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| 2004 || Literature || F. D. Gunstone publishes ''The Chemistry of Oils and Fats: Sources, Composition, Properties, and Uses''.<ref>{{cite book |last1=Gunstone |first1=F. D. |title=The Chemistry of Oils and Fats: Sources, Composition, Properties, and Uses |date=2004 |publisher=Blackwell Pub. |isbn=978-0-8493-2373-7 |url=https://books.google.com.ar/books?id=le_nFrWy_WoC&source=gbs_similarbooks |language=en}}</ref> ||
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| 2015 || Scientific development || {{w|Cardiovascular disease}} || || A study published on ''The BMJ'' re-evaluating the traditional diet-heart hypothesis concludes that replacing poly-unsaturated fat with saturated fat does not seem to reduce the risk of mortality.<ref name="Belluz"/><ref>{{cite journal |last1=Ramsden |first1=Christopher E. |last2=Zamora |first2=Daisy |last3=Majchrzak-Hong |first3=Sharon |last4=Faurot |first4=Keturah R. |last5=Broste |first5=Steven K. |last6=Frantz |first6=Robert P. |last7=Davis |first7=John M. |last8=Ringel |first8=Amit |last9=Suchindran |first9=Chirayath M. |last10=Hibbeln |first10=Joseph R. |title=Re-evaluation of the traditional diet-heart hypothesis: analysis of recovered data from Minnesota Coronary Experiment (1968-73) |journal=BMJ |date=12 April 2016 |volume=353 |pages=i1246 |doi=10.1136/bmj.i1246 |url=https://www.bmj.com/content/353/bmj.i1246 |language=en |issn=1756-1833}}</ref> ||
 
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| 2004–2005 || Scientific development || An analysis of samples of {{w|McDonald's}} French fries collected finds that fries served in New York City contain twice as much trans fat as in {{w|Hungary}}, and 28 times as much as in {{w|Denmark}}, where trans fats are restricted. For {{w|Kentucky Fried Chicken}} products, the pattern is reversed: the Hungarian product containing twice the trans fat of the New York product. Even within the United States, there is variation, with fries in New York containing 30% more trans fat than those from {{w|Atlanta}}.<ref name=nbc2006ym>{{cite news | title=What's in that french fry? Fat varies by city | work={{w|NBC News}} | date=12 April 2006 | url=https://www.nbcnews.com/id/12287818 | access-date=7 January 2007}} AP story concerning {{cite journal | pmid = 16611965 | doi=10.1056/NEJMc052959 | volume=354 | title=High levels of industrially produced trans fat in popular fast foods | date=April 2006 | journal=N. Engl. J. Med. | pages=1650–2 | last1 = Stender | first1 = S | last2 = Dyerberg | first2 = J | last3 = Astrup | first3 = A| issue=15 }}</ref> ||
+
| 2015 || Scientific development || {{w|Western pattern diet}} || [[w:unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]] ([[W:omega-3 fatty acid|ω−3]])) || According to a study, trans fats are one of several components of {{w|Western pattern diet}}s which promote {{w|acne}}, along with {{w|carbohydrate}}s with high {{w|glycemic load}} such as [[w:white sugar|refined sugars]] or [[w:refined grains|refined starches]], {{w|milk}} and {{w|dairy product}}s, and {{w|saturated fat}}s, while {{w|omega-3 fatty acid}}s, which reduce acne, are deficient in Western pattern diets.<ref>{{cite journal |last1=Melnik |first1=Bodo |title=Linking diet to acne metabolomics, inflammation, and comedogenesis: an update |journal=Clinical, Cosmetic and Investigational Dermatology |date=July 2015 |pages=371 |doi=10.2147/CCID.S69135}}</ref> ||
 
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| 2006 (January 1) || Policy || The first direct regulation of {{w|trans fat}} by the United States {{w|FDA}} is a requirement that it be labeled in amounts above 0.5g per serving, which takes effect on January 1.<ref>{{cite web |title=301. Mono- and diglycerides (WHO Food Additives Series 5) |url=http://www.inchem.org/documents/jecfa/jecmono/v05je44.htm |website=inchem.org |access-date=13 October 2021}}</ref> || {{w|United States}}
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| 2015 || Scientific development || Mental health || {{w|Trans fat}} || A study argues that "greater dietary trans fatty acid consumption is linked to worse word memory in adults during years of high productivity, adults age <45".<ref>{{cite journal |last1=Golomb |first1=Beatrice Alexandra |last2=Bui |first2=Alexis K. |title=A Fat to Forget: Trans Fat Consumption and Memory |journal=PLOS ONE |date=17 June 2015 |volume=10 |issue=6 |pages=e0128129 |doi=10.1371/journal.pone.0128129}}</ref> ||
 
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| 2006 || Research || A study indicates that the intake of saturated fat has a negative effect on the [[w:osteoporosis|mineral density of bones]]. The study suggests that men may be particularly vulnerable.<ref>{{cite journal |last1=Corwin |first1=Rebecca L. |last2=Hartman |first2=Terryl J. |last3=Maczuga |first3=Steven A. |last4=Graubard |first4=Barry I. |title=Dietary Saturated Fat Intake Is Inversely Associated with Bone Density in Humans: Analysis of NHANES III1 |journal=The Journal of Nutrition |date=1 January 2006 |volume=136 |issue=1 |pages=159–165 |doi=10.1093/jn/136.1.159}}</ref> ||
+
| 2015 || Scientific development || Weight loss || || A stury published on ''{{w|The Lancet}}'' analizing the effect of low-fat diet interventions versus other diet interventions on long-term weight change in adults, concludes that people on low-fat diets don't lose more weight.<ref name="Belluz"/><ref>{{cite journal |last1=Tobias |first1=Deirdre K. |last2=Chen |first2=Mu |last3=Manson |first3=JoAnn E. |last4=Ludwig |first4=David S. |last5=Willett |first5=Walter |last6=Hu |first6=Frank B. |title=Effect of low-fat diet interventions versus other diet interventions on long-term weight change in adults: a systematic review and meta-analysis |journal=The Lancet. Diabetes & Endocrinology |date=December 2015 |volume=3 |issue=12 |pages=968–979 |doi=10.1016/S2213-8587(15)00367-8 |url=https://pubmed.ncbi.nlm.nih.gov/26527511/ |issn=2213-8595}}</ref> ||
 
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| 2006 || Policy || {{w|New York City}} passes a law banning artificial trans fats in all restaurant foods.<ref name="Popular Scienceww">{{cite web |title=New York City's trans fat ban really did keep people out of the hospital |url=https://www.popsci.com/new-york-trans-fat-ban/ |website=Popular Science |access-date=5 October 2021 |date=18 March 2019}}</ref> || {{w|United States}}
+
| 2016 || Literature || {{w|Fat}} || || Michelle Phillipov publishes ''Fats: A Global History''.<ref>{{cite book |last1=Phillipov |first1=Michelle |title=Fats: A Global History |date=15 May 2016 |publisher=Reaktion Books |isbn=978-1-78023-575-2 |url=https://books.google.com.ar/books/about/Fats.html?id=tdMlDAAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
 
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| 2006 || Policy || Argentina starts requiring trans fat content labeling.<ref>{{cite web |title=A.N.M.A.T. |url=http://www.anmat.gov.ar/resultados.asp?cx=018082787451070703178%3Arx-vbt5pdfu&cof=FORID%3A10&ie=UTF-8&q=Capitulo_V.pdf |website=www.anmat.gov.ar |access-date=12 October 2021}}</ref> || {{w|Argentina}}
+
| 2017 || Scientific development || {{w|Cardiovascular disease}} || [[w:Unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]]) || A review by the {{w|American Heart Association}} estimates that replacement of saturated fat with polyunsaturated fat in the American diet could reduce the risk of cardiovascular diseases by 30%.<ref>{{cite journal |last1=Sacks |first1=Frank M. |last2=Lichtenstein |first2=Alice H. |last3=Wu |first3=Jason H.Y. |last4=Appel |first4=Lawrence J. |last5=Creager |first5=Mark A. |last6=Kris-Etherton |first6=Penny M. |last7=Miller |first7=Michael |last8=Rimm |first8=Eric B. |last9=Rudel |first9=Lawrence L. |last10=Robinson |first10=Jennifer G. |last11=Stone |first11=Neil J. |last12=Van Horn |first12=Linda V. |title=Dietary Fats and Cardiovascular Disease: A Presidential Advisory From the American Heart Association |journal=Circulation |date=18 July 2017 |volume=136 |issue=3 |doi=10.1161/CIR.0000000000000510}}</ref> || {{w|United States}}
 
|-
 
|-
| 2007 || Scientific development || A study funded by the Malaysian Palm Oil Board<ref name=sund2007>{{Cite journal | vauthors=Sundram K, Karupaiah T, Hayes K | year=2007 | title=Stearic acid-rich interesterified fat and trans-rich fat raise the LDL/HDL ratio and plasma glucose relative to palm olein in humans | url=http://www.nutritionandmetabolism.com/content/pdf/1743-7075-4-3.pdf | journal=Nutr Metab | volume=4 | pages=3 | doi=10.1186/1743-7075-4-3 | pmc=1783656 | pmid=17224066 |}}</ref> claims that replacing natural {{w|palm oil}} by other interesterified or partial hydrogenated fats cause adverse health effects, such as higher [[w:low-density lipoprotein|LDL]]/[[w:high-density lipoprotein|HDL]] ratio and {{w|plasma glucose level}}s.  However, these effects could be attributed to the higher percentage of saturated acids in the IE and partially hydrogenated fats, rather than to the IE process itself.<ref>{{cite journal |last1=Destaillats |first1=Frédéric |last2=Moulin |first2=Julie |last3=Bezelgues |first3=Jean-Baptiste |title=Letter to the editor: healthy alternatives to trans fats |journal=Nutrition & Metabolism |date=2007 |volume=4 |issue=1 |pages=10 |doi=10.1186/1743-7075-4-10}}</ref><ref>{{cite journal |last1=Mensink |first1=Ronald P |last2=Zock |first2=Peter L |last3=Kester |first3=Arnold DM |last4=Katan |first4=Martijn B |title=Effects of dietary fatty acids and carbohydrates on the ratio of serum total to HDL cholesterol and on serum lipids and apolipoproteins: a meta-analysis of 60 controlled trials |journal=The American Journal of Clinical Nutrition |date=1 May 2003 |volume=77 |issue=5 |pages=1146–1155 |doi=10.1093/ajcn/77.5.1146}}</ref> ||
+
| 2017 || Policy || {{w|Trans fat}} || {{w|Trans fat}} || {{w|Health Canada}} announces complete ban of trans fats in the country.<ref>{{cite web |title=Health Canada trans fat ban takes effect next year |url=https://www.cbc.ca/news/health/trans-fats-1.4292241 |website=cbc.ca |access-date=12 October 2021}}</ref> || {{w|Canada}}
 
|-
 
|-
| 2007 || Scientific development || A study finds that each 2% increase in the intake of energy from trans unsaturated fats, as opposed to that from carbohydrates, is associated with a 73% greater risk of ovulatory infertility.<ref name=chav2007zp>{{cite journal | vauthors = Chavarro JE, Rich-Edwards JW, Rosner BA, Willett WC | title = Dietary fatty acid intakes and the risk of ovulatory infertility | journal = The American Journal of Clinical Nutrition | volume = 85 | issue = 1 | pages = 231–7 | date = January 2007 | pmid = 17209201 | doi = 10.1093/ajcn/85.1.231 | doi-access = free }}</ref> ||
+
| 2018 || Program launch || {{w|Cardiovascular disease}} || {{w|Trans fat}} || The {{w|World Health Organization}} launches a plan to eliminate trans fat from the global food supply. They estimate that trans fat leads to more than 500,000 deaths from cardiovascular disease yearly.<ref>{{cite web |title=WHO plan to eliminate industrially-produced trans-fatty acids from global food supply |url=https://www.who.int/news-room/detail/14-05-2018-who-plan-to-eliminate-industrially-produced-trans-fatty-acids-from-global-food-supply |website=www.who.int |access-date=6 October 2021 |language=en}}</ref> ||
 
|-
 
|-
| 2007 || Program launch || The {{w|American Heart Association}} launches its "Face the Fats" campaign to help educate the public about the negative effects of trans fats.<ref>{{cite journal | vauthors = Eckel RH, Kris-Etherton P, Lichtenstein AH, Wylie-Rosett J, Groom A, Stitzel KF, Yin-Piazza S | title = Americans' awareness, knowledge, and behaviors regarding fats: 2006-2007 | language = en | journal = Journal of the American Dietetic Association | volume = 109 | issue = 2 | pages = 288–96 | date = February 2009 | pmid = 19167956 | doi = 10.1016/j.jada.2008.10.048 | url = http://jandonline.org/article/S0002-8223(08)02041-5/pdf }}</ref> || {{w|United States}}
+
| 2018 || Statistics || {{w|Energy homeostasis}} || {{w|Trans fat}} || The 2018 Dutch Nutrition Survey reports that in this year, trans fatty acids only provided ∼0.3% of the daily energy requirement, as opposed to 5–10% several decades ago.<ref name="Kersten"/> ||
 
|-
 
|-
| 2008 || Policy || Switzerland bans trans fats.<ref>{{cite book |last1=Scherer |first1=Lauri S. |title=Artificial Ingredients |date=28 December 2012 |publisher=Greenhaven Publishing LLC |isbn=978-0-7377-6284-6 |url=https://books.google.com.ar/books?id=9oRmDwAAQBAJ&pg=PA92&lpg=PA92&dq=Switzerland+(2008)+bans+trans+fat&source=bl&ots=eLbNsWasxa&sig=ACfU3U2eOZfVVJCs4XZZPSDZ1BFW8uI7Iw&hl=en&sa=X&ved=2ahUKEwiB0ua0lLTzAhWvpZUCHTkeCUYQ6AF6BAgKEAM#v=onepage&q=Switzerland%20(2008)%20bans%20trans%20fat&f=false |language=en}}</ref> || {{w|Switzerland}}
+
| 2018 || Literature || {{w|Fat}} || || Vinood B. Patel publishes ''The Molecular Nutrition of Fats'', which presents the nutritional and molecular aspects of fats by assessing their dietary components, their structural and metabolic effects on the cell, and their role in health and disease.<ref>{{cite book |last1=Patel |first1=Vinood B. |title=The Molecular Nutrition of Fats |date=29 October 2018 |publisher=Academic Press |isbn=978-0-12-811298-4 |url=https://books.google.com.ar/books/about/The_Molecular_Nutrition_of_Fats.html?id=SrF1DwAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
 
|-
 
|-
| 2008 || Policy || {{w|Calgary}} becomes the first city in Canada to ban trans fats from restaurants and fast-food chains.<ref>{{cite book |last1=Sardesai |first1=Vishwanath |title=Introduction to Clinical Nutrition, Third Edition |date=11 October 2011 |publisher=CRC Press |isbn=978-1-4398-1818-3 |url=https://books.google.com.ar/books?id=Ywi8ftrYxsEC&pg=PA73&lpg=PA73&dq=Calgary+in+2008+bans+trans+fat&source=bl&ots=PvsHu3frUb&sig=ACfU3U3NXdVEtuDjGm1sc5qnq4v833LOow&hl=en&sa=X&ved=2ahUKEwjRkuulmrTzAhXkq5UCHcAGDoMQ6AF6BAgbEAM#v=onepage&q=Calgary%20in%202008%20bans%20trans%20fat&f=false |language=en}}</ref> || {{w|Canada}}
+
| 2019 || Policy || Partially-hydrogenated oil || || The [[w:Ministry of Health (Singapore)|Ministry of Health of Singapore]] announces that partially-hydrogenated oils (PHOs) will be banned.<ref>{{Cite web |last1=Choo |first1=Felicia |url=https://www.straitstimes.com/politics/moh-to-ban-artificial-trans-fat-in-cookies-and-noodles |title=MOH to ban artificial trans fat in cookies and noodles |website=The Straits Times |access-date=12 October 2021 |date=6 March 2019}}</ref> || {{w|Singapore}}
 
|-
 
|-
| 2009 || Literature || Frank Gunstone publishes ''Oils and Fats in the Food Industry''.  
+
| 2020 || Policy || {{w|Trans fat}} || {{w|Trans fat}} || The Saudi Minister of Health announces the ban of trans fat in all food products in the country due to their health risks.<ref>{{cite web |last1=الربيعة |first1=توفيق |authorlink=Tawfig Al-Rabiah|url=https://twitter.com/tfrabiah/status/1070723230443417600/ |title=عد ١٣ شهراً (في ١-١-٢٠٢٠) سوف يتم منع الزيوت المهدرجة من جميع الأغذية نظراً لأضرارها الصحية|publisher=Twitter |access-date=12 October 2021}}</ref> || {{w|Saudi Arabia}}
 
|-
 
|-
| 2010 || Recommendation || A conference of the {{w|American Dietetic Association}} takes place, at which concerns are expressed that a blanket recommendation to avoid saturated fats could drive people to also reduce the amount of {{w|polyunsaturated fat}}s, which may have health benefits, and/or replace fats by refined carbohydrates — which carry a high risk of obesity and heart disease.<ref>{{cite journal |last1=Zelman |first1=Kathleen |title=The Great Fat Debate: A Closer Look at the Controversy—Questioning the Validity of Age-Old Dietary Guidance |journal=Journal of the American Dietetic Association |date=May 2011 |volume=111 |issue=5 |pages=655–658 |doi=10.1016/j.jada.2011.03.026}}</ref> || {{w|United States}}
+
| 2020 (August 19) || Policy || {{w|Trans fat}} || {{w|Trans fat}} || The {{w|President of Romania}} promulgates a law that limits trans fats to 2 grams per every 100 grams of fat, max. The food producers not conforming would be fined with a sum ranging between 10,000 and 30,000 [[w:Romanian leu|lei]].<ref>{{cite web |last1=Lascu |first1=Dana |title=Legea care face mâncarea românilor mai SĂNĂTOASĂ. Adrian Wiener: Nu interzice alimente! Oprește un ABUZ criminal URIAȘ! |url=https://www.dcmedical.ro/legea-care-face-mancarea-romanilor-mai-sanatoasa-adrian-wiener-nu-interzice-alimente-opre-te-un-abuz-uria_619975.html |website=www.dcmedical.ro |access-date=15 October 2021 |language=ro}}</ref><ref>{{cite web |title=Lege cu impact major în industria alimentară și fast-food, promulgată de președinte. Producătorii, obligați să limiteze acizii grași |url=https://www.digi24.ro/magazin/stil-de-viata/viata-sanatoasa/lege-cu-impact-major-in-industria-alimentara-si-fast-food-promulgata-de-presedinte-producatorii-obligati-sa-limiteze-acizii-grasi-1355359 |website=www.digi24.ro |access-date=15 October 2021 |language=ro}}</ref> || {{w|Romania}}
 
|-
 
|-
| 2010 || Statistics || According to the {{w|FDA}}, the average American consumes 5.8 grams of trans fat per day (2.6% of energy intake).<ref>{{cite web |title=Revealing Trans Fats |url=https://web.archive.org/web/20100311162752/http://www.pueblo.gsa.gov/cic_text/food/reveal-fats/reveal-fats.htm |website=web.archive.org |access-date=13 October 2021 |date=11 March 2010}}</ref> || {{w|United States}}
+
| 2021 (January 20) || Scientific development || {{w|Saturated fat}} || [[w:Saturated fat|Saturated]] || Michael Easter publishes an article prominently featuring Harvard professor Walter Willett, who discusses his research, the challenges of conducting large-scale and rigorous nutrition studies, and his critics. Willett notes that his studies have consistently shown that when it comes to heart disease, saturated fats—which are found primarily in meat and dairy products—aren’t necessarily bad but they’re not necessarily good.<ref>{{cite web |last1=Easter |first1=Michael |title=Inside the Knockdown, Drag-Out War on Saturated Fat |url=https://www.menshealth.com/nutrition/a35103720/saturated-fat-good-or-bad/ |website=Men's Health |access-date=2 December 2021 |date=20 January 2021}}</ref><ref>{{cite web |title=The debate over saturated fats rages on |url=https://www.hsph.harvard.edu/news/hsph-in-the-news/the-debate-over-saturated-fats-rages-on/ |website=News |access-date=2 December 2021 |language=en-us |date=22 January 2021}}</ref> || {{w|United States}}  
 
|-
 
|-
| 2012 || Recommendation || The Conseil Supérieur de la Santé in {{w|Belgium}} publishes a science-policy advisory report on industrially produced trans fatty acids that focuses on the general population. Its recommendation to the legislature is to prohibit more than 2 g of trans fatty acids per 100 g of fat in food products.<ref>{{cite web| url=http://www.health.belgium.be/internet2Prd/groups/public/@public/@shc/documents/ie2divers/19080447_fr.pdf|title= acides gras trans d'origine industrielle|website=Avis du Conseil Supérieur de la Santé N° 8666|date=July 2012 |editor=Conseil Supérieur de la Santé|access-date=12 October 2021}}</ref> || {{w|Belgium}}
+
| 2021 || Scientific development || {{w|Cardiovascular disease}} || [[w:Saturated fat|Saturated]] || A review finds that diets high in saturated fat are associated with higher mortality from all-causes and cardiovascular disease.<ref>{{cite journal |last1=Kim |first1=Youngyo |last2=Je |first2=Youjin |last3=Giovannucci |first3=Edward L. |title=Association between dietary fat intake and mortality from all-causes, cardiovascular disease, and cancer: A systematic review and meta-analysis of prospective cohort studies |journal=Clinical Nutrition |date=March 2021 |volume=40 |issue=3 |pages=1060–1070 |doi=10.1016/j.clnu.2020.07.007}}</ref> ||
 
|-
 
|-
| 2012 || Scientific development || An observational analysis of subjects of an earlier study finds a strong relation between dietary trans fat acids and self-reported behavioral aggression and irritability, suggesting but not establishing causality.<ref name=golo2012>{{cite journal | vauthors = Golomb BA, Evans MA, White HL, Dimsdale JE | title = Trans fat consumption and aggression | journal = PLOS ONE | volume = 7 | issue = 3 | pages = e32175 | year = 2012 | pmid = 22403632 | pmc = 3293881 | doi = 10.1371/journal.pone.0032175}}</ref> ||
+
| 2021 || Policy || {{w|Trans fat}} (industrial) || {{w|Trans fat}} || Foods in the EU intended for consumers are required to contain less than 2g of industrial trans fat per 100g of fat.<ref>{{cite web |title=Trans fat in food |url=https://ec.europa.eu/food/safety/labelling-and-nutrition/trans-fat-food_en |website=ec.europa.eu |access-date=13 October 2021 |language=en}}</ref> ||
 
|-
 
|-
| 2014 || Policy || It becomes obligatory in Israel to mark food products with more than 2% (by weight) fat. The nutritional facts must contain the amount of trans fats."<ref>{{cite web|url=http://www.health.gov.il/NewsAndEvents/SpokemanMesseges/Pages/01042014.aspx|title=נכנסה לתוקף בישראל חובת סימון שומן טראנס על גבי אריזות מזון ארוז|website=health.gov.il}}</ref> || {{w|Israel}}
+
| 2021 || Scientific development || {{w|Cardiovascular disease}} || || An observational study involving 10,529 incident coronary heart disease (CHD) cases and a random subcohort of 16,730 adults selected from a cohort of 385,747 participants in 9 countries finds no strong associations of total fatty acids, saturated fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids, with incident coronary heart disease. By contrast, the researchers find associations of saturated fatty acids with coronary heart disease in opposite directions dependent on the food source.<ref>{{cite journal |last1=Steur |first1=Marinka |last2=Johnson |first2=Laura |last3=Sharp |first3=Stephen J. |last4=Imamura |first4=Fumiaki |last5=Sluijs |first5=Ivonne |last6=Key |first6=Timothy J. |last7=Wood |first7=Angela |last8=Chowdhury |first8=Rajiv |last9=Guevara |first9=Marcela |last10=Jakobsen |first10=Marianne U. |last11=Johansson |first11=Ingegerd |last12=Koulman |first12=Albert |last13=Overvad |first13=Kim |last14=Sánchez |first14=Maria‐José |last15=van der Schouw |first15=Yvonne T. |last16=Trichopoulou |first16=Antonia |last17=Weiderpass |first17=Elisabete |last18=Wennberg |first18=Maria |last19=Zheng |first19=Ju‐Sheng |last20=Boeing |first20=Heiner |last21=Boer |first21=Jolanda M. A. |last22=Boutron‐Ruault |first22=Marie‐Christine |last23=Ericson |first23=Ulrika |last24=Heath |first24=Alicia K. |last25=Huybrechts |first25=Inge |last26=Imaz |first26=Liher |last27=Kaaks |first27=Rudolf |last28=Krogh |first28=Vittorio |last29=Kühn |first29=Tilman |last30=Kyrø |first30=Cecilie |last31=Masala |first31=Giovanna |last32=Melander |first32=Olle |last33=Moreno‐Iribas |first33=Conchi |last34=Panico |first34=Salvatore |last35=Quirós |first35=José R. |last36=Rodríguez‐Barranco |first36=Miguel |last37=Sacerdote |first37=Carlotta |last38=Santiuste |first38=Carmen |last39=Skeie |first39=Guri |last40=Tjønneland |first40=Anne |last41=Tumino |first41=Rosario |last42=Verschuren |first42=W. M. Monique |last43=Zamora‐Ros |first43=Raul |last44=Dahm |first44=Christina C. |last45=Perez‐Cornago |first45=Aurora |last46=Schulze |first46=Matthias B. |last47=Tong |first47=Tammy Y. N. |last48=Riboli |first48=Elio |last49=Wareham |first49=Nicholas J. |last50=Danesh |first50=John |last51=Butterworth |first51=Adam S. |last52=Forouhi |first52=Nita G. |title=Dietary Fatty Acids, Macronutrient Substitutions, Food Sources and Incidence of Coronary Heart Disease: Findings From the EPIC‐CVD Case‐Cohort Study Across Nine European Countries |journal=Journal of the American Heart Association |volume=0 |issue=0 |pages=e019814 |doi=10.1161/JAHA.120.019814 |url=https://www.ahajournals.org/doi/full/10.1161/JAHA.120.019814}}</ref> || {{w|United States}}  
 
|-
 
|-
| 2015 || Recommendation || The {{w|United States Department of Agriculture}} Dietary Guidelines Advisory Committee (DGAC) recommends that Americans eat as little dietary cholesterol as possible, because most foods that are rich in cholesterol are also high in {{w|saturated fat}} and thereby may increase the risk of cardiovascular disease.<ref>{{cite journal |last1=Goldman |first1=T. R. |title=Health Policy Brief: Final 2015-20 Dietary Guidelines for Americans |journal=Health Affairs |date=31 March 2016 |doi=10.1377/hpb20160331.683121 |url=https://www.healthaffairs.org/do/10.1377/hpb20160331.683121/full/ |access-date=7 June 2021}}</ref><ref>{{cite journal |last1=Soliman |first1=Ghada |title=Dietary Cholesterol and the Lack of Evidence in Cardiovascular Disease |journal=Nutrients |date=16 June 2018 |volume=10 |issue=6 |pages=780 |doi=10.3390/nu10060780}}</ref> || {{w|United States}}
+
| 2025 || Market trend || Fatty acid || [[w:Unsaturated fat|Unsaturated]] ([[w:polyunsaturated fat|polyunsaturated]]) || The polyunsaturated fatty acids Market is forecast to reach US$10.59 billion by this year, due to growing popularity.<ref>{{cite web |title=Polyunsaturated Fatty Acids Market Share, Size and Industry Growth Analysis 2020 - 2025 |url=https://www.industryarc.com/Research/Polyunsaturated-Fatty-Acids-Market-Research-504324 |website=www.industryarc.com |access-date=11 November 2021 |language=en}}</ref> ||
 
|-
 
|-
| 2015 || Scientific development || According to a study, trans fats are one of several components of {{w|Western pattern diet}}s which promote {{w|acne}}, along with {{w|carbohydrate}}s with high {{w|glycemic load}} such as [[w:white sugar|refined sugars]] or [[w:refined grains|refined starches]], {{w|milk}} and {{w|dairy product}}s, and {{w|saturated fat}}s, while {{w|omega-3 fatty acid}}s, which reduce acne, are deficient in Western pattern diets.<ref>{{cite journal |last1=Melnik |first1=Bodo |title=Linking diet to acne metabolomics, inflammation, and comedogenesis: an update |journal=Clinical, Cosmetic and Investigational Dermatology |date=July 2015 |pages=371 |doi=10.2147/CCID.S69135}}</ref> ||
+
|}
 +
 
 +
== Numerical and visual data  ==
 +
 
 +
=== Google Scholar ===
 +
 
 +
The following table summarizes per-year mentions on Google Scholar as of October 6, 2021.
 +
 
 +
{| class="sortable wikitable"
 +
! Year
 +
! "trans fat"
 +
! "saturated fat"
 +
! "fatty acid"
 +
! "triglyceride"
 
|-
 
|-
| 2015 || Scientific development || A study argues that "greater dietary trans fatty acid consumption is linked to worse word memory in adults during years of high productivity, adults age <45".<ref>{{cite journal |last1=Golomb |first1=Beatrice Alexandra |last2=Bui |first2=Alexis K. |title=A Fat to Forget: Trans Fat Consumption and Memory |journal=PLOS ONE |date=17 June 2015 |volume=10 |issue=6 |pages=e0128129 |doi=10.1371/journal.pone.0128129}}</ref> ||
+
| 1900 || 1 || 2 || 52 || 19
 
|-
 
|-
| 2017 || Scientific development || A review by the {{w|American Heart Association}} estimates that replacement of saturated fat with polyunsaturated fat in the American diet could reduce the risk of cardiovascular diseases by 30%.<ref>{{cite journal |last1=Sacks |first1=Frank M. |last2=Lichtenstein |first2=Alice H. |last3=Wu |first3=Jason H.Y. |last4=Appel |first4=Lawrence J. |last5=Creager |first5=Mark A. |last6=Kris-Etherton |first6=Penny M. |last7=Miller |first7=Michael |last8=Rimm |first8=Eric B. |last9=Rudel |first9=Lawrence L. |last10=Robinson |first10=Jennifer G. |last11=Stone |first11=Neil J. |last12=Van Horn |first12=Linda V. |title=Dietary Fats and Cardiovascular Disease: A Presidential Advisory From the American Heart Association |journal=Circulation |date=18 July 2017 |volume=136 |issue=3 |doi=10.1161/CIR.0000000000000510}}</ref> || {{w|United States}}
+
| 1910 || 0 || 4 || 123 || 9
 
|-
 
|-
| 2017 || Policy || {{w|Health Canada}} announces complete ban of trans fats in the country.<ref>{{cite web |title=Health Canada trans fat ban takes effect next year |url=https://www.cbc.ca/news/health/trans-fats-1.4292241 |website=cbc.ca |access-date=12 October 2021}}</ref> || {{w|Canada}}
+
| 1920 || 0 || 1 || 171 || 13
 
|-
 
|-
| 2018 || Program launch || The {{w|World Health Organization}} launches a plan to eliminate trans fat from the global food supply. They estimate that trans fat leads to more than 500,000 deaths from cardiovascular disease yearly.<ref>{{cite web |title=WHO plan to eliminate industrially-produced trans-fatty acids from global food supply |url=https://www.who.int/news-room/detail/14-05-2018-who-plan-to-eliminate-industrially-produced-trans-fatty-acids-from-global-food-supply |website=www.who.int |access-date=6 October 2021 |language=en}}</ref> ||
+
| 1930 || 1 || 6 || 261 || 21
 
|-
 
|-
| 2018 || Statistics || The 2018 Dutch Nutrition Survey reports that in this year, trans fatty acids only provided ∼0.3% of the daily energy requirement, as opposed to 5–10% several decades ago.<ref name="Kersten"/> ||
+
| 1940 || 1 || 14 || 399 || 41
 
|-
 
|-
| 2018 || Literature || Vinood B. Patel publishes ''The Molecular Nutrition of Fats'', which presents the nutritional and molecular aspects of fats by assessing their dietary components, their structural and metabolic effects on the cell, and their role in health and disease.<ref>{{cite book |last1=Patel |first1=Vinood B. |title=The Molecular Nutrition of Fats |date=29 October 2018 |publisher=Academic Press |isbn=978-0-12-811298-4 |url=https://books.google.com.ar/books/about/The_Molecular_Nutrition_of_Fats.html?id=SrF1DwAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
+
| 1950 || 0 || 14 || 811 || 80
 
|-
 
|-
| 2019 || Policy || The [[w:Ministry of Health (Singapore)|Ministry of Health of Singapore]] announces that partially-hydrogenated oils (PHOs) will be banned.<ref>{{Cite web |last1=Choo |first1=Felicia |url=https://www.straitstimes.com/politics/moh-to-ban-artificial-trans-fat-in-cookies-and-noodles |title=MOH to ban artificial trans fat in cookies and noodles |website=The Straits Times |access-date=12 October 2021 |date=6 March 2019}}</ref> || {{w|Singapore}}
+
| 1960 || 2 || 72 || 2,060 || 376
 
|-
 
|-
| 2010 (April 15) || Recommendation || A ''[[w:The BMJ|British Medical Journal]]'' editorial calls for trans fats to be "virtually eliminated in the United Kingdom by next year".<ref>{{cite journal |last1=Mozaffarian |first1=D. |last2=Stampfer |first2=M. J. |title=Removing industrial trans fat from foods |journal=BMJ |date=15 April 2010 |volume=340 |issue=apr15 1 |pages=c1826–c1826 |doi=10.1136/bmj.c1826}}</ref> || {{w|United Kingdom}}
+
| 1970 || 1 || 157 || 5,520 || 1,980
 
|-
 
|-
| 2016 || Literature || Michelle Phillipov publishes ''Fats: A Global History''.<ref>{{cite book |last1=Phillipov |first1=Michelle |title=Fats: A Global History |date=15 May 2016 |publisher=Reaktion Books |isbn=978-1-78023-575-2 |url=https://books.google.com.ar/books/about/Fats.html?id=tdMlDAAAQBAJ&source=kp_book_description&redir_esc=y |language=en}}</ref> ||
+
| 1980 || 6 || 537 || 9,440 || 3,440
 
|-
 
|-
| 2020 || Policy || The Saudi Minister of Health announces the ban of trans fat in all food products in the country due to their health risks.<ref>{{cite web |last1=الربيعة |first1=توفيق |authorlink=Tawfig Al-Rabiah|url=https://twitter.com/tfrabiah/status/1070723230443417600/ |title=عد ١٣ شهراً (في ١-١-٢٠٢٠) سوف يتم منع الزيوت المهدرجة من جميع الأغذية نظراً لأضرارها الصحية|publisher=Twitter |access-date=12 October 2021}}</ref> || {{w|Saudi Arabia}}
+
| 1990 || 17 || 1,240 || 16,700 || 5,380 
 
|-
 
|-
| 2020 (August 19) || Policy || The {{w|President of Romania}} promulgates a law that limits trans fats to 2 grams per every 100 grams of fat, max. The food producers not conforming would be fined with a sum ranging between 10,000 and 30,000 [[w:Romanian leu|lei]].<ref>{{cite web |last1=Lascu |first1=Dana |title=Legea care face mâncarea românilor mai SĂNĂTOASĂ. Adrian Wiener: Nu interzice alimente! Oprește un ABUZ criminal URIAȘ! |url=https://www.dcmedical.ro/legea-care-face-mancarea-romanilor-mai-sanatoasa-adrian-wiener-nu-interzice-alimente-opre-te-un-abuz-uria_619975.html |website=www.dcmedical.ro |access-date=15 October 2021 |language=ro}}</ref><ref>{{cite web |title=Lege cu impact major în industria alimentară și fast-food, promulgată de președinte. Producătorii, obligați să limiteze acizii grași |url=https://www.digi24.ro/magazin/stil-de-viata/viata-sanatoasa/lege-cu-impact-major-in-industria-alimentara-si-fast-food-promulgata-de-presedinte-producatorii-obligati-sa-limiteze-acizii-grasi-1355359 |website=www.digi24.ro |access-date=15 October 2021 |language=ro}}</ref> || {{w|Romania}}
+
| 2000 || 83 || 2,570 || 35,300 || 11,000
 
|-
 
|-
| 2021 || Scientific development || A review finds that diets high in saturated fat are associated with higher mortality from all-causes and cardiovascular disease.<ref>{{cite journal |last1=Kim |first1=Youngyo |last2=Je |first2=Youjin |last3=Giovannucci |first3=Edward L. |title=Association between dietary fat intake and mortality from all-causes, cardiovascular disease, and cancer: A systematic review and meta-analysis of prospective cohort studies |journal=Clinical Nutrition |date=March 2021 |volume=40 |issue=3 |pages=1060–1070 |doi=10.1016/j.clnu.2020.07.007}}</ref> ||
+
| 2010 || 1,460 || 6,330 || 116,000 || 30,100 
 
|-
 
|-
| 2021 || Scientific development || Foods in the EU intended for consumers are required to contain less than 2g of industrial trans fat per 100g of fat.<ref>{{cite web |title=Trans fat in food |url=https://ec.europa.eu/food/safety/labelling-and-nutrition/trans-fat-food_en |website=ec.europa.eu |access-date=13 October 2021 |language=en}}</ref> ||
+
| 2020 || 2,360 || 9,960 || 68,700 || 32,200
 
|-
 
|-
 
|}
 
|}
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[[File:Fat gsch.png|thumb|center|600px]]
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=== Google Trends ===
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The chart below shows {{w|Google Trends}} data for Fat (food), from January 2004 to October 2021, when the screenshot was taken. Interest is also ranked by country and displayed on world map.<ref>{{cite web |title=Fat |url=https://trends.google.com/trends/explore?date=all&q=%2Fm%2F02zks |website=Google Trends |access-date=6 October 2021}}</ref>
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[[File:Fat gt.png|thumb|center|600px]]
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=== Google Ngram Viewer ===
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The comparative chart below shows {{w|Google Ngram Viewer}} data for trans fat, saturated fat, fatty acid and triglyceride from 1800 to 2019.<ref>{{cite web |title=trans fat, saturated fat, fatty acid, triglyceride |url=https://books.google.com/ngrams/graph?content=trans+fat%2Csaturated+fat%2Cfatty+acid%2Ctriglyceride&year_start=1800&year_end=2019&corpus=26&smoothing=3&direct_url=t1%3B%2Ctrans%20fat%3B%2Cc0%3B.t1%3B%2Csaturated%20fat%3B%2Cc0%3B.t1%3B%2Cfatty%20acid%3B%2Cc0%3B.t1%3B%2Ctriglyceride%3B%2Cc0#t1%3B%2Ctrans%20fat%3B%2Cc0%3B.t1%3B%2Csaturated%20fat%3B%2Cc0%3B.t1%3B%2Cfatty%20acid%3B%2Cc0%3B.t1%3B%2Ctriglyceride%3B%2Cc0 |website=books.google.com |access-date=6 October 2021 |language=en}}</ref>
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[[File:Fat ngram.png|thumb|center|700px]]
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=== Wikipedia Views ===
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The chart below shows pageviews of the English Wikipedia article {{w|Fat}}, from July 2015 to September 2021.<ref>{{cite web |title=Fat |url=https://wikipediaviews.org/displayviewsformultiplemonths.php?page=Fat&allmonths=allmonths-api&language=en&drilldown=all |website=wikipediaviews.org |access-date=6 October 2021}}</ref>
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[[File:Fat wv.png|thumb|center|450px]]
  
 
==Meta information on the timeline==
 
==Meta information on the timeline==
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===What the timeline is still missing===
 
===What the timeline is still missing===
 
 
* {{w|Fatty acid}}
 
* {{w|Category:Fatty acids}}
 
* {{w|Triglyceride}}
 
* {{w|Category:Triglycerides}}
 
  
 
===Timeline update strategy===
 
===Timeline update strategy===
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* [[Timeline of proteins]]
 
* [[Timeline of proteins]]
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* [[Timeline of malnutrition]]
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* [[Timeline of cardiovascular disease]]
  
 
==External links==
 
==External links==

Latest revision as of 19:35, 23 November 2023

This is a timeline of fats, attempting to describe the variety of fats, including saturated, unsaturated, trans fats, and interesterified fats.

Sample questions

The following are some interesting questions that can be answered by reading this timeline:

  • What topics are mentioned in this timeline?
    • Sort the full timeline by "Key topic".
    • You will see topics often arbitrarily picked from the details, with the purpose to give an illustrative but comprehensive overview of the discussion.
  • What are some notable scientific discoveries and developments involving fats?
    • Sort the full timeline by "Event type" and look for the group of rows with value "Scientific development".
    • You will find a large number of studies, often involving discoveries or synthesis of fatty acids.
  • What are some of the increasing regulations having been imposed across the world on the use of fats in food products?
    • Sort the full timeline by "Event type" and look for the group of rows with value "Policy".
    • You sill see a number of policies imposed by authorities, including food strandards, commercial bans, and compulsory labeling, etc.
  • What are some notable or illustrative publications on the topic of fats?
    • Sort the full timeline by "Event type" and look for the group of rows with value "Literature".
    • You will see a number of sample publications on the topic.
  • What are some notable recommendations of fat intake issued by competent entities?
    • Sort the full timeline by "Event type" and look for the group of rows with value "Recommendation".
    • You will see a number of dietary guidelines and recommendations issued by competent entities.
  • What are some notable campaigns aimed at educating the population on fat consumption?
    • Sort the full timeline by "Event type" and look for the group of rows with value "Program launch".
    • You will see endeavors aimed at improving the diet of consumer-citizens, whether through educational programs or campaigns aimed at influencing policies.
  • What are some notable events describing the industrialization of fats for mass consumption?
    • Sort the full timeline by "Event type" and look for the group of rows with value "Industrial development".
    • You will see a number of notable events illustrating the evolution of new products, starting from soap in early history, to shortening in the 20th century.

Big picture

Time period Development summary More details
Ancient times Early history Fatty acids are used already in very early times, specifically in the preparation of soap. The ancient Babylonians use soap as early as 2500 BC. By 800 AD–900 AD, the soap industry is well established in Germany and France.[1]
18th–19th centuries Early scientific development Cholesterol in solid form is identified in the 18th century. In the 19th century Michel Eugène Chevreul stands out for his prolific research on fats. In the 19th century, one of the most important discoveries is the introduction of an industrially relevant method to split fats and oils into fatty acids and glycerin.[1]
20th century (first half) Recognition of fat importance Dietary fat is recognized as a good source of energy and fat-soluble vitamins by the first part of the century.[2] Proteins and carbohydrates are known to be indispensable dietary components by the first decade.[2] In the 1920s, industrial hydrogenation of edible oils develops in Europe and the United States.[3] During the first half of the century, higher-fat milk and dairy products were more costly.[4] Lipases and colipases are isolated and characterized.[4] In the 1930s Burr and Burr demonstrate the concept that some fatty acids may be necessary for the proper growth and development of animals.[5] Concern over the health impacts of trans fats first emerge in the 1940s.[6]
20th century (second half) Recognition of potential harm Research on trans fatty acids begin in the 1950s.[7] By the late 1950s, scientists establish a clear link between the intake of saturated fat and heart disease,[6][8] while health advocates start proposing a reduction saturated fats, such as in butter and beef, from the diets, which propells the use of margarine instead, a trend that would increase abruptly toward the 1980s.[9] Throughout the 1950s and 1960s, saturated fat begin acquiring a bad reputation.[10] In the 1960s, essential fatty acids start being considered of importance in human nutrition.[5] In the 1970s, saturated fat is condemned as harmful since Ancel Keys’s landmark “seven countries” study.[11] In the 1980s, an association between high intake of saturated fat and increased risk of heart disease is firmly established,[6] however, this era's recommendations about switching to a low-fat diet are not supported by science, with any high-quality evidence to support that advice.[10] In the 1990s, evidence emerges indicating that trans fats carry a higher risk for heart disease than saturated fats.[6] Several studies conducted in this decade show a connection between trans fat and increased levels of bad cholesterol.[9]
21st century Policy enforcement/change in sentiment In the early 2000s, health agencies in various countries worldwide recognize the need to introduce regulations controlling the amount of trans fats used in manufactured foods.[6] In recent times, there's an increasing debate over the role saturated fats play in the development of heart disease, with more experts claiming that saturated fats not only are not that harmful,[12] but even healthy.[13][14] Today, a general consensus claims that trans fats are harmful, polyunsaturated and monounsaturated fats are healthy, and saturated fats are regarded somewhere in-between.[15] Scientists universally accept that trans fats increase the risk of cardiovascular disease through inflammatory processes.[11]

Full timeline

Year Event type Key topic Fat type (when applicable) Details Location
800 AD Industrial development Fatty acid Soap, which is a salt of a fatty acid, is produced in Germany.[1] Germany
1551 Scientific development Adipose tissue Adipose tissue – more specifically brown adipose tissue– is first identified by Swiss naturalist Conrad Gessner.[16]
1769 Scientific development Cholesterol François Poulletier de la Salle first identifies cholesterol in solid form in gallstones. Some consider this to be the start of the story of lipids in humans.[17] France
1770s Medical development Fish liver oil Unsaturated (polyunsaturated (ω−3)) Reports from this time indicate that fish liver oils are used for the treatment of rickets, osteomalacia, general malnutrition, and eye conditions, thus linking, for the first time, fish liver oils and the factor termed “fat-soluble A.”[4] Today, it is known that fish body oil and fish liver oil are rich in omega-3 essential fatty acids, which can help control the immune system and fight joint inflammation.[18]
1779 Scientific development Glycerol Swedish chemist Carl Wilhelm Scheele discovers that glycerol could be obtained from olive oil by heating it with litharge (lead monoxide).[19] Along with fatty acids, glycerol is one of the two main components of a fat molecule.[20] Sweden
1791 Scientific development Essential oil, greasy oil Swiss scientist Jean Senebier reports in the Encyclopédie méthodique, Physiologie végétale a classification of oils. They are separated into essential and greasy oils.[21] Switzerland
1792 Scientific development Oil oxidation Jean Senebier observes that exposure to air causes oils to go white, lose their fluidity, and in time go rancid. Further investigation convinces him that rancidity involves oxidation.[22] Switzerland
1813 Scientific development Fatty acid The concept of fatty acid (acide gras) is introduced by Michel Eugène Chevreul,[23][24] though he initially uses some variant terms: graisse acide and acide huileux ("acid fat" and "oily acid").[25] France
1814 Scientific development Butyric acid Saturated French chemist Michel-Eugène Chevreul first observes butyric acid. By 1818, he purifies it sufficiently to characterize it.[26][1] France
1814 Scientific development Oil body Michel-Eugène Chevreul shows that hog’s lard consists of two distinct oily bodies: one being a solid at room temperature and the other, a liquid.[22] France
1815 Scientific development Cholesterol Michel-Eugène Chevreul demonstrates the chemical nature of fats and oils.[19] He also names the compound "cholesterine".[27][28] France
1815 Scientific development Lipid Henri Braconnot classifies lipids (graisses) in two categories, suifs (solid greases or tallow) and huiles (fluid oils).[29] France
1816 Scientific development Caproic acid Saturated Michel-Eugène Chevreul first isolates caproic acid (from the Latin word caper, meaning goat) from butter.[30] A saturated medium-chain fatty acid with a 6-carbon backbone, caproic acid is found naturally in various plant and animal fats and oils.[31] This fatty acid works as an anti-viral, as well as boots energy, and promotes weight loss.[32] France
1819 Scientific development Elaidic acid Unsaturated (monounsaturated (ω−9)) French chemist Jean-Joseph-Etienne Poutet from Marseille first obtains elaidic acid[33], a monounsaturated trans fatty acid.[34][35] France
1823 Scientific development Lipid classification French chemist Michel Eugène Chevreul develops a more detailed classification of lipids, including oils, greases, tallow, waxes, resins, balsams and volatile oils (or essential oils).[36][37] France
1823 Scientific development Stearic acid Saturated Michel Eugène Chevreul first describes stearic acid, named from the Greek word stéar, meaning tallow (also known as beef fat).[38] France
1823 Scientific development Oleic acid Unsaturated (monounsaturated (ω−9)) Michel Eugène Chevreul first recognizes oleic acid in pork fat.[39] Oleic acid is a fatty acid that occurs naturally in various animal and vegetable fats and oils.[40] France
1823 Literature Michel Eugène Chevreul Michel Eugène Chevreul publishes Chemistry of Fats and Oils.[1] France
1825 Scientific development Fatty acids distillation Distillation of fatty acids is achieved.[1]
1827 Scientific development Fat as nutrient English chemist William Prout recognizes fat ("oily" alimentary matters), along with protein ("albuminous") and carbohydrate ("saccharine"), as an important nutrient for humans and animals.[41][42] United Kingdom
1828 Scientific development Fatty acid separation A method for separation of solid and liquid fatty acids is obtained.[1]
1832 Scientific development Elaidic acid Unsaturated (monounsaturated (ω−9)) F. Boudet, studying accurately J.J.E. Poutet’s work, manages to isolate elaidic acid, and names it acide élaidique.[33]
1840 Scientific development Palmitic acid Saturated French chemist Edmond Frémy discovers palmitic acid in saponified palm oil.[43] France
1841 Scientific development Myristic acid Saturated Lyon Playfair first isolates myristic acid from nutmeg (Myristica fragrans).[44]
1842 Scientific development Lauric acid Saturated T. Marsson discovers lauric acid in the seeds of Laurus nobilis, from which its name.[45]
1844 Scientific development Triglyceride, fat interesterification Interesterified The first synthetic triglyceride is reported by Théophile-Jules Pelouze, who manages to produce tributyrin by treating butyric acid with glycerin in the presence of concentrated sulfuric acid.[46] This is the earliest record of enzymatic Interesterification.[47] France
1844 Scientific development Linoleic acid Unsaturated (polyunsaturated (ω−6)) Linoleic acid (from the Latin linon, meaning flax, plus oleic, meaning oil or olive oil) is isolated by F. Sacc from linseed oil.[48] It is a polyunsaturated essential fatty acid found mostly in plant oils.[49]
1844 Scientific development Propionic acid Saturated Austrian chemist Johann Gottlieb first describes propionic acid, after finding it among the degradation products of sugar.[50]
1847 Scientific development Phospholipid French pharmacist Theodore Nicolas Gobley discovers phospholipids in mammalian brain and hen egg, called by him as "lecithins".[51] France
1848 Scientific development Behenic acid Saturated Behenic acid is first reported by A. Voelcker.[52][1]
1848 Scientific development Ricinoleic acid Unsaturated (monounsaturated (ω−9)) Ricinoleic acid is discovered.[1]
1849 Scientific development Pancreatic juice French physiologist Claude Bernard reports that pancreatic juice is involved in the breakdown of fat to glycerine and fatty acids for subsequent absorption.[4] France
1849 Scientific development Erucic acid Unsaturated (monounsaturated (ω−9))[53] Erucic acid is discovered.[1]
1852 Scientific development Polymorphism Polymorphism is discovered.[1] Today, an important quality parameter in fat research as well as in industrial applications is the polymorphic state of edible fats.[54]
1853 Scientific development Gylceride The term gylceride is first used.[1]
1854 Scientific development Triglyceride (triacetin) Triacetin is first prepared by French chemist Marcellin Berthelot.[55] France
1854 Scientific development Palmitoleic acid Unsaturated (monounsaturated (ω−7)) P.G. Hofstädter first notices palmitoleic acid in sperm whale oil and names physetoleic acid.[56]
1855 Scientific development Glycerol The correct structure of glycerol is determined.[1]
1856 Scientific development Lipid German pathologist Rudolf Virchow first describes lipid accumulation in arterial walls.[57] Germany
1869 Scientific development Margarine Unsaturated French chemist Hippolyte Mège-Mouriès invents the margarine. In the same year, he wins a prize offered by Napoleon III for a satisfactory butter substitute.[19][58] Margarine is made from vegetable oils, so it contains polyunsaturated and monounsaturated fats. These types of fats help reduce low-density lipoprotein (LDL).[59] France
1876 Scientific development Cholesterol German chemist Adolf Windaus reports that plaques in aortas from atherosclerosis patients contain 20 times more cholesterol than normal aortas.[17] Germany
1879 Scientific development Lipid The Soxhlet extractor is invented by German chemist Franz von Soxhlet. It is originally designed for the extraction of a lipid from a solid material.[1]
1881 Scientific development Hydroxy myristic acid Hydroxy myristic acid is discovered.[1]
1886 Scientific development Brassidic acid Unsaturated (monounsaturated) Brassidic acid is first prepared from erucic acid by W. Reimer. It is an unsaturated fatty acid, member of the sub-group called very long chain fatty acids.[60]
1886 Scientific development Linoleic acid Unsaturated (polyunsaturated (ω−6)) The diene structure of linoleic acid is determined.[1]
1887 Scientific development alpha-Linolenic acid Unsaturated (polyunsaturated (ω−3)) alpha-Linolenic acid is isolated by K. Hazura and Monatsh.[61] First found in hempseed oil, it is a type of omega-3 fatty acid found in plants.[62][22]
1887 Scientific development Triene acid Unsaturated (polyunsaturated) Triene acid in hempseed oil is determined.[1]
1888 Scientific development Cholesterol Friedrich Reinitzer describes the molecular structure of cholesterol.[17]
1890 Scientific development Fats, proteins, carbohydrates It is written that “fat stands between the two great nutrients, proteids (proteins) on the one hand and carbohydrates on the other, and we find that we can indulge in considerable latitude as to its use. When we wish to get our food in a more condensed form, we can use fats freely.”[4]
1892 Scientific development Acetylenic acid The first acetylenic acid is reported.[1]
1894 Scientific development Ricinoleic acid Unsaturated (monounsaturated (ω−9)) The correct structure of ricinoleic acid is determined.[1]
1895 Literature Fat chemistry The first book on the chemistry of fats and oils is published.[1]
1897 Scientific development Hydrogenation French chemist Paul Sabatier describes the hydrogenation of organic compounds in the presence of finely disintegrated metals. Catalytic hydrogenation is considered a major advance in fatty acid chemistry. Sabatier would be later awarded the Nobel Prize in chemistry.[1][22] France
1898 Scientific development Fat-splitting United States chemist Ernst Twitchell patents a catalytic method for fat-splitting. Later known as the Twitchell process, it consists in acid catalyst being prepared by the reaction of oleic acid with sulfuric acid and naphthalene.[63] United States
1898 Scientific development Chromatography Liquid chromatography is reported as a purification method of fatty acids.[1]
1898 Scientific development Oleic acid Unsaturated (monounsaturated (ω−9)) The structure of oleic acid is elucidated by the works of J. Baruch and F.G. Edmed.[39] It is a mono-unsaturated omega-9 fatty acid.[64][1]
1900 Scientific development Benzenestearosulphonic acid Ernst Twitchell reports that treatment of oleic acid and benzene with concentrated sulfuric acid yields benzene stearosulphonic acid useful as a fat-splitting reagent.[1]
1900 Industrial development Oil extraction The first continuous screw press for extracting oil from oil seeds is manufactured V. D. Anderson in Cleveland, Ohio. Called the "expeller", it is much more efficient than earlier hydraulic presses, but it still leaves much of the oil in the meal and much room, therefore, for improvement.[22] United States
1901 Scientific development Hydrogenation German chemist Wilhelm Normann experiments with hydrogenation catalysts and successfully induces the hydrogenation of liquid fat, producing semisolid fat, which came to be known as trans fat.[6] Germany
1902 Scientific development Fat deposition Rosenfeld shows that a high-carbohydrate, low protein diet results in fat deposition.[65]
1903 Scientific development Hydrogenation German chemist Wilhelm Normann patents the hydrogenation of liquid oils,[6] which "converts unsaturated fatty acids into saturated compounds".[22] Germany
1904 Scientific development Cyclopentyl acid The first cyclopentyl acid is discovered.[1]
1905 Scientific development Purified fat Pekelharing observes that mice could not grow optimally while consuming only a mixture of purified fat, carbohydrate, and protein.[4]
1906 Scientific development Palmitoleic acid Unsaturated (monounsaturated (ω−7)) H. Bull discovers the molecular composition of palmitoleic acid, at the time when Lewkowitsch gives the present name.[56]
1906 Scientific development Gadoleic acid Unsaturated (monounsaturated (ω−11)) H. Bull discovers gadoleic acid in cod liver oil.[66]
1906 Industrial development Hydrogenation Joseph Crosfields & Sons in Warrington, England, begin industrial hydrogenation in Europe.[67] United Kingdom
1908 Scientific development Penta-2,3-dienedioic acid Penta-2,3-dienedioic acid is isolated from the leaf resin of European alder Alnus glutinosa (Betulaceae).[63]
1909 Scientific development Cholesterol, atherosclerosis Alexander I. Ignatowski describes the relationship between a diet rich in cholesterol and atherosclerosis.[68][69]
1909 Scientific development alpha-Linolenic acid Unsaturated (polyunsaturated (ω−3)) The exact structure of alpha-Linolenic acid is clarified by E. Erdmann et al.[61] This fatty acid is popular for preventing and treating diseases of the heart and blood vessels.[70]
1909 Scientific development Petroselinic acid Unsaturated (monounsaturated (ω−11))[71] Petroselinic acid is first isolated from parsley seed oil.[72]
1910 Scientific development Cholesterol, atherosclerosis Windaus demonstrates that atherosclerotic lesions contain six times more free cholesterol and 20 times more esterified cholesterol compared with the healthy arterial wall.[68]
1911 Industrial development Shortening Trans fat After acquiring the US rights to Normann’s patent[3], Procter & Gamble introduces Crisco (short for crystallized cotton oil), the first food product that contains trans fat.[6] It is a solid vegetable fat made by hydrogenating cottonseed oil, thus providing a low-cost, vegetable-derived alternative to butter and lard.[22] This is the first all-vegetable household shortening with cottonseed oil.[73] United States
1911 Industrial development Soybean oil The first commercial quantities of soybeans are imported into the United States from Manchuria and are crushed for oil.[22] United States
1912 Scientific development Lipid Jacob Rosenbloom and William J. Gies propose the substitution of "lipoid" by "lipin".[74]
1912 Scientific development Fat-soluble vitamin A American biochemist Elmer McCollum at the University of Wisconsin begins using rats instead of humans in his experiments rather than cows and sheep. He finds the first fat-soluble vitamin, Vitamin A, and discovers that rats are healthier when they are fed butter rather than lard, as butter contains more Vitamin A.[75] United States
1912 Industrial development Hydrogenated fat Hydrogenated fats appear on the market. Today, they still remain the most important raw material in margarine and shortening.[76]
1913 Scientific development Cholesterol Anitschkow shows that it is possible to establish atherosclerosis in rabbits by feeding cholesterol. Since then virtually all research on atherosclerosis would be centered on both circulating cholesterol and dietary cholesterol.[77]
1913 Scientific development Arachidonic acid Unsaturated (polyunsaturated (ω−6)) Dyerberg and Bang identify very small amounts of an unsaturated fatty acid contained in Eskimos’ blood. They name it arachidonic acid because it is the same length as arachidic acid, a saturated fat found in peanuts, but has multiple double bonds.[22]
1913 Scientific development Fat-soluble vitamin A A “fat-soluble A” factor necessary to support life is identified. This factor is thought to cure xerophthalmia and rickets.[4]
1913 Scientific development Cholesterol, atherosclerosis Russian pathologist Nikolay Anichkov demonstrates that cholesterol and fat gives rise to atherosclerotic changes in the vessel walls of rabbits, and atherosclerosis occurs by direct deposition of fat in the vascular wall.[68][78] Russia
1918 Scientific development Fat as nutrient German physician Hans Aron in Breslau is arguably the first to suggest that fats have nutritional functions other than provision of food energy,[79][5][80] proposing that butter has a nutrient value that cannot be provided by other dietary components.[81] This is the first evidence of the existence of fatty acids.[82][83] Germany
1918 Scientific development Continuous centrifuge Continuous centrifuge is patented as a method to separate both solids and immiscible liquids.[1]
1919 Scientific development Essential fatty acid Unsaturated (polyunsaturated Von Groer reports on two infants who were on skim milk diets for 9 months and had retarded growth, poor appetite, and possible respiratory infections. After their diets were supplemented with essential fatty acid for several months, these infants are found to be healthy, with a normal growth rate and weight gain.[79]
1920 Scientific development Linoleic acid Unsaturated (polyunsaturated (ω−6)) Meyerhof finds that linoleic acid and sulphur-rich proteins work together to help fatigued muscle recover rapidly from exercise and exertion.[65]
1920 Scientific development Fat interesterification Interesterified Wilhelm Norman, who also patented the catalytic hydrogenation of fatty acids, is granted a patent for the chemical interesterification of edible lipids.[84]
1920 Scientific development Dimer acid Dimer acids are discovered.[1]
1920 Scientific development Lipid Bloor introduces a new classification for "lipoids": simple lipoids (greases and waxes), compound lipoids (phospholipoids and glycolipoids), and the derived lipoids (fatty acids, alcohols, sterols).[85][86]
1921 Scientific development Fatty acid (solid and liquid) The separation of solid and liquid fatty acids is first obtained.[1]
1923 Scientific development Lipid The word lipide, which stems etymologically from Greek λίπος, lipos 'fat', is introduced by French pharmacologist Gabriel Bertrand.[87]
1923 Scientific development Continuous refining Continuous refining of fats is patented.[1]
1924 Scientific development Lipid (chylomicron) Simon Henry Gage and Pierre Augustine Fish show that after a fatty meal human blood contains tiny particles (1 µm) called chylomicrons.[17]
1924 Scientific development Fat interesterification Industrial fat interesterification is patented.[1]
1924 Scientific development Linoleic acid Unsaturated (polyunsaturated (ω−6)) Albert Szent-Györgyi discovers that the system of sulphur-rich protein and linoleic acid takes up oxygen. However, he lacks the biochemical techniques to prove the identity of the components of this system conclusively.[65]
1925 Scientific development Palmitoleic acid Unsaturated (monounsaturated (ω−7)) E.F. Armstrong et al. establish the structure of palmitoleic acid as an unsaturated fatty acid.[56]
1926 Scientific development Fatty acid oxidation German physiologist Otto Heinrich Warburg shows that a fatty substance is required to restart oxidation when it is low, as is the case in cancer and other degenerative conditions.[65]
1927 Scientific development Fat deficiency American scientists Herbert McLean Evans and George Oswald Burr demonstrate that, despite the addition of vitamins A, D, and E to the diet, a deficiency of fat severely affects both growth and reproduction of experimental animals.[82] United States
1927 Scientific development Fat classification A method for classifying fats is introduced.[1]
1927 Scientific development Nervonic acid Unsaturated (monounsaturated (ω−9))[88] M. Tsujimoto discovers nervonic acid in fats of Elasmobranchii, a subclass of chondrichthyes including fishes with fusiform (selachii like sharks from with its first name selacholeic acid) or flatten (batoidea like ray) bodies.[89]
1928 Scientfic development Vaccenic acid Unsaturated (monounsaturated (ω−7)) Vaccenic acid is discovered in animal fats and butter. Mammals convert it into rumenic acid, a conjugated linoleic acid,[90][91]

where it shows anticarcinogenic properties.[92]

1929 Scientific development Dietary fatty acid Unsaturated (polyunsaturated) George and Mildred Burr report that dietary fatty acid is required to prevent a deficiency disease that occurs in rats fed a fat-free diet. They conclude that fatty acids are essential nutrients and show that linoleic acid prevents the disease and is an essential fatty acid. The Burrs surmise that other unsaturated fatty acids are essential and subsequently demonstrate that linolenic acid, the omega-3 fatty acid analog of linoleic acid, is also an essential fatty acid.[2][93][22][81] United States
1929 Scientific development Isomerization Isomerization during hydrogenation is reported.[1]
1930 Industrial development Margarine The votator is patented. It is used for the continuous manufacture of margarine.[1]
1930 Scientific development Prostaglandin Unsaturated (polyunsaturated (ω−6)) Gynecologists working with artificial insemination report that extracts of seminal fluid cause uterine tissue to contract. This observation leads to the discovery of the important cell messengers called prostaglandins,[22] which are first isolated from the prostate gland of sheep, from which they are given the name.[65]
1931 Scientific development X-ray crystallography X-ray diffraction is first used for fatty acids.[1]
1931 Industrial development Fat-splitting Continuous fat-splitting is patented.[1]
1931 Industrial development Edible oil Henry Ford plants 500 acres of soybeans in Dearborn, Michigan. After the Second World War, and after soybean production takes off, the United States would be able to export edible oils.[22] United States
1932 Industrial development Spry vegetable shortening Spry vegetable shortening is introduced by Lever Brothers.[1]
1933 Scientific development Gadoleic acid Unsaturated (monounsaturated (ω−11)) M.Takano clarifies the structure of gadoleic acid.[66]
1933 Industrial development Fatty acid distillation Distillation of fatty acids is patented.[1]
1933 Industrial development Shortening Procter & Gamble implements a significant change for shortenings, adding mono- and diglycerides, which dramatically improves the performance of baking shortenings. This improvement is tempered somewhat for household shortenings because of the required all-purpose performance.[73]
1933 Industrial development Shortening Superglycerinated high-ratio shortenings are introduced. This would bring significant changes for the baker and the shortening industry. These shortenings contain mono- and diglycerides, which contribute to a finer dispersion of fat particles in cake batters, causing a greater number of smaller-sized fat globules that strengthen the batters.[73][1]
1934 Scientific development Oleic acid Unsaturated (polyunsaturated (ω−9)) Oleic acid is synthesized for the first time by C.R. Noller et al.[39] Today, studies suggest that oleic acid reduces inflammation and may even have beneficial effects on genes linked to cancer.[94]
1934 Industrial development Oil seed–crushing The first continuous countercurrent solvent extraction plant in the United States is opened by Archer Daniels Midland Company. The plant uses hexane as the solvent and a 100-tons-per-day Hildebrandt extractor from Germany. By the late 1940s, much of the oil seed–crushing industry would evolove from screw presses to far more efficient solvent extraction.[22] United States
1934 Scientific development Centrifugal refining Centrifugal refining is introduced.[1]
1936 Industrial development Fatty acid distillation Distillation of fatty acids is patented.[1]
1936 Industrial development Shortening Primex shortening is marketed.[1] An all-purpose shortening with a neutral flavor and buttery appearance, it is used for donut frying, pie doughs, cookies, and other bakery applications.[95]
1937 Scientific development Linoleic acid Unsaturated (polyunsaturated (ω−6)) Conjugation of linoleic acid by alkali is obtained.[1]
1938 Scientific development Linoleic acid Unsaturated (polyunsaturated (ω−6)) George and Mildred Burr are unable to prove that linoleic acid is essential for humans. This question would remain unresolved until the 1960s.[22]
1938 Scientific development Monoglyceride, diglyceride The first U.S. patents for mono- and diglycerides is granted.[68] United States
1938 Scientific development Santalbic acid Santalbic acid is first discovered in the seeds of Santalum album.[63][96]
1939 Scientific development Linoleic acid Unsaturated (polyunsaturated (ω−6)) The exact structure of linoleic acid is clarified by English chemist Thomas Percy Hilditch et al.[48] United Kingdom
1940 Industrial development Fatty acid M.F. Bengen first describes the technique of formation of crystalline urea fatty acid complexes, which today is a well-known technique to fractionate fatty acids and is used to separate straight chain compounds found in milk.[63][97] Germany
1940 Industrial development Fatty amines/nitriles Fatty amines/nitriles are patented.[1]
1940 Literature Oil (chemical analysis) Thomas Percy Hilditch publishes The Chemical Composition of Natural Oils, which would be considered a seminal and influential contribution to chemical analysis of oils.[1]
1945 Literature Oil American chemist Alton E. Bailey publishes Industrial Oil and Fat Products.[1] United States
1945 Scientific development Fatty acid displacement analysis Displacement analysis for fatty acids is reported.[1]
1945 Scientific development Fatty acid oxidation Relative rates of fatty acid oxidation is reported.[1]
1947 Literature Natural fat Thomas Percy Hilditch publishes The chemical constitution of natural fats, which would become famous. Hilditch claims that “unanimity has not yet been reached in the terminology to be adopted in classifying the various types of naturally occurring compounds in which fatty acids are present … even a collective title for the whole group is not completely settled“.[21] United Kingdom
1947 Industrial development Shortening Swiftning shortening is marketed.[1]
1948 Industrial development Fat interesterification Directed interesterification is reported.[1] This process would be put into successful factory use on lard shortenings. Directed interesterification increases the fraction of high melting solids (trisaturated glycerides) and decreases the fraction of intermediate melting glycerides (disaturated glycerides) in lard.[98]
1950 Market trend Western pattern diet A broad dietary shift from animal fats begins, favoring liquid oil products. U.S. consumers become increasingly aware of the role of fats and oils in coronary disease, and start replacing solid shortenings with liquid oils.[73] United States
1950 Scientific development Obesity Genetically obese mice are first described.[99]
1950 Scientific development Fat melting/solidification Bailey publishes melting and solidification of fats.[1]
1950 Scientific development Linoleic acid Unsaturated (polyunsaturated (ω−6)) American biochemist Ralph Holman and a graduate student discover that linoleic acid is the precursor of arachidonic acid and that alpha-Linolenic acid is the precursor of docosahexaenoic acid and eicosapentaenoic acid.[22] United States
1950 Scientific development Mycolic acid Asselineau and Lederer describe the first structure of mycolic acids as α-branched, β-hydroxylated long-chain fatty acids, a feature that confers to the molecule the property to be cleaved at high temperature into a "mero"aldehyde main chain, also called "meromycolic" chain, and a "fatty acid", a reaction similar to a reverse Claisen type condensation.[100][101]
1950 Scientific development Linoleic acid Unsaturated (polyunsaturated (ω−6)) Linoleic acid is synthesized by British chemist Ralph Raphael and German-born British chemist Franz Sondheimer.[48] United Kingdom
1950–1970 Market trend Edible vegetable oils In 1950, the food fat marketed in the United States is split approximately equally between animal fats (lard, tallow and butter) and edible vegetable oils. By 1970, edible vegetable oils would account for three-fourths of the total and animal fats only one-fourth.[102] United States
1951 Scientific development Chromatography English scientists Archer Martin and A. J. James perfect the first gas-liquid chromatograph, a powerful analytical and purification tool that enables scientists to separate the many different fatty acids in tissues and foods. For this work, they are later awarded the Nobel Prize in Chemistry in 1952.[22][1] United Kingdom
1951 Scientific development Linolenic acid Unsaturated (polyunsaturated (ω−3)) Herbert Dutton proves that linolenic acid is the cause of the off flavors and odors in soybean oil. This would lead to the expanded use of partial or selective hydrogenation to eliminate this fat.[22]
1952 Scientific development Eicosapentaenoic acid, docosahexaenoic acid Unsaturated (polyunsaturated (ω−3)) An early epidemiological study conducted in Norway finds a lower incidence of multiple sclerosis in coastal communities with a high consumption of fish (high eicosapentaenoic acid and docosahexaenoic acid intakes) compared to communities with a high consumption of animal fat.[68] Norway
1953 Scientific development Sterol The plasma cholesterol-lowering properties of plant sterols are described by Pollak.[103]
1953 Scientific development Cardiovascular disease Ancel Keys publishes a chart which directly correlates the incidence of heart disease with the total fat intake of a population.[22]
1955 Scientific development Triglyceride Synthesis of mixed acid triglyceride is introduced.[1]
1955 Scientific development Trans fat source Trans fat Trans fatty acids are found to be naturally present in ruminants but not nonruminants.[22]
1955 Industrial development Shortening Golden Fluffo shortening is marketed.[1]
1956 Scientific development Fat distribution French physician Jean Vague becomes the first to show the importance of fat distribution in relation to various diseases, describing what he terms ‘android’ and ‘gynoid’ types of obesity.[104] France
1956 Scientific development Chromatography Stahl advances thin-layer chromatography.[1]
1956 Scientific development alpha-Linolenic acid Unsaturated (polyunsaturated (ω−3)) alpha-Linolenic acid is synthesized by Nigama and Weedon.[61] This fatty acid has an antithrombotic effect. It has a role as a micronutrient, a nutraceutical and a mouse metabolite.[105]
1957 Scientific development Lipid Kummerow and colleagues[106] find that lipid extracts of tissue specimens from 24 human subjects who died of heart disease contain ≤12.2% trans fatty acids in their adipose tissue, 14.4% in the liver, 9.3% in heart tissue, 8.8% in aortic tissue, and 8.8% in atheroma.[107]
1957 Scientific development Prostaglandin Unsaturated (polyunsaturated (ω−6)) Sune Bergström isolates the first prostaglandins.[22] These are lipid autacoids derived from arachidonic acid.[108]
1957 Industrial development Extrusion Extrusion is developed and patented as a method for microencapsulation of polyunsaturated fatty acid-rich oil emulsions. Extrusion process is found to produce less porous material compared to spray drying; however, it increases production cost as compared to spray drying and use of screw extruders at high pressure are highly detrimental to omega-3 fatty acids.[109]
1958 Scientific development Essential fatty acid deficiency Unsaturated (polyunsaturated Essential fatty acid deficiency in humans is first described by Arild Hansen et al., in infants fed a milk-based formula lacking them.[82]
1959 Scientific development Mead acid Unsaturated (polyunsaturated (ω−9))[110] James F. Mead at UCLA first identifies what would be named mead acid.[111] United States
1959 Scientific development Microemulsion Microemulsion is first prepared by Hoar and Schulman, by dispersing oil in an aqueous solution of surfactant where alcohol is used as cosurfactant. This forms stable, transparent oil-in-water formulation. The term "microemulsion" is coined by Schulman et al. in this year.[109]
1960 Scientific development Glyceride A theory of glyceride structures is proposed.[1]
1960 Scientific development Trienoic/tetraenoic acid ratio Unsaturated (polyunsaturated) Ralph Holman introduces the concept of the trienoic/tetraenoic acid ratio as an indicator of the severity of essential fatty acid deficiency in rats. He later demonstrates its applicability to other species. A ratio of 0.4 or greater is considered indicaive of EFA deficiency. Later in 1970, Holman would suggest that the upper limit of normality is a ratio of 0.2 for humans.[79][22]
1961 Industrial development Hydrogenation Hydrogenated winterized soybean oil is marketed.[1]
1963 Scientific development Essential fatty acid Unsaturated (polyunsaturated) Arild Hansen and colleagues demonstrate for the first time that humans require the dietary intake of certain polyunsaturated fatty acids (PUFAs) that the body is unable to synthesize. These PUFAs are therefore referred to as essential fatty acids.[112]
1963 Policy Fatty acid The Codex Alimentarius Commission (Codex) is created to develop food standards, guidelines and related texts such as codes of practice under the Joint Food and Agriculture Organization/World Health Organisation Food Standards Programme. Under the Guidelines for Nutrition Labelling of Codex, trans fatty acids must be declared where the amount and/or type of fatty acids or the amount of cholesterol is declared on a label.[3]
1964 Scientific development Fatty acid Konrad Bloch and Feodor Lynen share the Nobel Prize in Physiology or Medicine for their discoveries concerning some of the mechanisms and methods of regulation of cholesterol and fatty acid metabolism.[113]
1964 Literature Fatty acid (chemistry) Klare Markley publishes Fatty acids, an extensive five volume set on the chemistry of fatty acids.[1]
1964 Scientific development Prostaglandin Unsaturated (polyunsaturated (ω−6)) Swedish biochemist Sune Bergström and Dutch chemist David Adriaan van Dorp demonstrate that prostaglandins are made from twenty-carbon fatty acids, such as arachidonic and eicosapentaenoic acid.[22] Thanks to these scientists, fatty acids are found to be the precursors for the synthesis of prostaglandins.[82]
1964 Scientific development Fat classification Unsaturated Ralph Holman proposes a new system for naming the different families of unsaturated fatty acids, the omega system, and hypothesizes that the different families compete for the same elongation and desaturation enzymes.[22]
1965 Scientific development Cholesterol Keys et al. and Hegsted et al. independently develop formulae for predicting changes in cholesterol levels based on changes in the diet. Their formulae are based upon changes in quantity of saturated and unsaturated fat and in dietary cholesterol.[77]
1965 Recommendation Hydrogenated fat The American Heart Association deletes the recommendation to decrease the intake of hydrogenated fats and removes a negative reference to the trans fatty acids. The revised statement encourages the consumption of partially hydrogenated fats.[114] United States
1965 Scientific development Saturated fat, cholesterol Saturated An early study published on the American Journal of Clinical Nutrition explains the link between saturated fat in the diet and the concentration of cholesterol in the blood.[115][10] United States
1966 Scientific development Monoglyceride Larsson first describes the crystal structure of pure, racemic 1-monoglycerides, which would be later reviewed by Small in 1986 and Larsson in 1994.[116]
1967 Scientific development Omega-3 fatty acid source Unsaturated (polyunsaturated (ω−3)) Trout are the first animal to be recognized as requiring omega-3 fatty acids, as those raised with corn oil as the only fat in their diet develop a shock syndrome and suffer a high mortality.[22]
1967 Scientific development Fatty acid Gunstone claims that over 300 fatty acids are known in nature at this time.[67]
1968 Scientific development Saturated fat source Michael Crawford shows that the fats of domestic animals are much more saturated than the fats of wild animals.[22]
1968 Scientific development Saturated monoglyceride Krog and Larsson first publish binary phase diagrams of distilled saturated monoglycerides based on hydrogenated lard.[116]
1969 Industrial development Margarine Trans-free margarine is patented, mentioning Fondu and Willems as its inventors. It describes a hardstock that is obtained by interesterifying palm stearin with a lauric oil. However, neither of these components is hydrogenated, and consequently, the interesterification product contains quite a large proportion of triglycerides that do not contribute to blend consistency but nevertheless introduce saturated fatty acids.[67]
1970 Scientific development Cardiovascular disease Saturated A study analizing populations in seven countries associates diets high in saturated fat intake with cholesterol, and cardiovascular disease.[10][117] This study would be later considered deeply flawed, with more recent consensus favoring saturated fats.[13]
1972 Scientific development Docosahexaenoic acid Unsaturated (polyunsaturated (ω−3)) Michael Crawford shows that docosahexaenoic acid is important to brain function.[22]
1972 Scientific development Methyl oleate Self-metathesis of methyl oleate is first reported. It gives dimethyl octadec-9-ene-1,18-dioate and octadec-9-ene as products.[118][63]
1972 Scientific development Fish oil Unsaturated (polyunsaturated (ω−3)) Hans Olaf Bang and Jørn Dyerberg report that compared to Danes, Greenland Eskimos have lower levels of heart disease —and of serum cholesterol and triglycerides, despite a diet rich in fat and blubber. This is associated with polyunsaturated fatty acid in fish oil.[22]
1973 Scientific development Prostaglandin Unsaturated (polyunsaturated (ω−6)) American nutritional biochemist William E.M. Lands reports that prostaglandins made from omega-3 fatty acids are much less inflammatory than those made from omega-6 fatty acids, a finding that would lead to the use of fish oil in treating patients with arthritis, ulcerative colitis, Crohn’s disease, dysmenorrhea, and other inflammatory disorders.[22] United States
1973 Policy Whaling Commercial whaling is banned in the United States. As a result, jojoba oil (a long-chain wax ester) is brought to commercialization as a result of research done at the National Center for Agricultural Utilization Research.[63] United States
1974 Scientific development Metathesis Van Dam et al. conduct the first successful application of metathesis chemistry to lipids.[1][119]
1975 Policy Saturated fat, polyunsaturated fatty acid, cholesterol Saturated, Unsaturated Guidelines for voluntary nutrition labeling start taking effect in the United States. Foods are labeled on the basis of total, saturated (lauric, myristic, palmitic, and stearic acids), and polyunsaturated fatty acids and cholesterol content. These standards are established based on the observed association between saturated fat intake and risk of cardiovascular disease.[4] United States
1975 Market trend Fat, oil The world market for edible fats and oils surpasses 41 million tons in this year, with products sold for almost 29 billion dollars.[65] Worldwide
1975 Scientific development Docosahexaenoic acid Unsaturated (polyunsaturated (ω−3)) Robert Anderson identifies docosahexaenoic acid as a key part of the eye’s photoreceptor.[22]
1976 Scientific development Cardiovascular disease Saturated, trans fat The Nurses' Health Study is incepted as a cohort study following 120,000 female nurses. The researchers would analyze data from 900 coronary events from the study's population during 14 years of followup, and would determine that a nurse's coronary artery disease (CAD) risk roughly doubled (relative risk of 1.93, confidence interval: 1.43 to 2.61) for each 2% increase in trans fat calories consumed (instead of carbohydrate calories). By contrast, for each 5% increase in saturated fat calories (instead of carbohydrate calories) there was a 17% increase in risk (relative risk of 1.17, CI: 0.97 to 1.41). The replacement of saturated fat or trans unsaturated fat by cis (unhydrogenated) unsaturated fats is associated with larger reductions in risk than an isocaloric replacement by carbohydrates.[120] The researchers would also report on the benefits of reducing trans fat consumption. Replacing 2% of food energy from trans fat with non-trans unsaturated fats more than halves the risk of CAD (53%). By comparison, replacing a larger 5% of food energy from saturated fat with non-trans unsaturated fats reduces the risk of CAD by 43%. This study provides the major evidence for the effect of trans fat on coronary artery disease.[120] United States
1976 Scientific development Lipid hypothesis A summary of the lipid hypothesis describes it as: "measures used to lower the plasma lipids in patients with hyperlipidemia will lead to reductions in new events of coronary heart disease".[121]
1977 Recommendation Baby Formula Unsaturated (polyunsaturated (ω-3, ω-6)) The World Health Organization issues a repport concluding that infant formulas should match the milk from well-nourished mothers with respect both to parent and long-chain fatty acids and to the balance of the omega-6 and omega-3 families.[22]
1977 Recommendation Dietary guideline The first edition of The Dietary Goals for the United States is published in attempts to reduce incidence of diet-related diseases such as cardiovascular disease and diabetes. The report suggests Americans should eat less high-fat red meat, eggs, and dairy and more plants and other carbohydrates.[10][122] United States
1977 Industrial development Linoleic acid Unsaturated (polyunsaturated (ω−6)) United States FDA approves of Intralipid, a linoleic acid-rich lipid emulsion made with soybean oil, phospholipids, and glycerol. This marks the beginning of parenteral use of fats in the United States.[81] United States
1977 Industrial development Enzymatic interesterification Enzymatic interesterification is patented. However, its early use is very limited until later when immobilized enzymes become affordable for large-scale industrial use. Today, enzymatic interesterification is widely used for the production of low-TFA plastic fats for numerous applications.[3]
1978 Scientific development Eicosapentaenoic acid Unsaturated (polyunsaturated (ω−3)) J.Dyerberg et al. suggest that eicosapentaenoic acid, an omega-3 fat, plays a role in the prevention of thrombosis and atherosclerosis.[22][123]
1979 Literature Fatty Acid Everett Pryde publishes Fatty Acids, which covers the fatty acid literature up to date.[1]
1980 Recommendation Dietary guideline Saturated The United States Department of Agriculture and the United States Department of Health and Human Services jointly release the first Dietary Guidelines for Americans. These reports emphasize a leading harmful role of saturated fats.[124] United States
1983 Scientific development Ischemic heart disease Researchers show that the concentration of trans 18:1 and 16:1 fatty acids is 6.8% higher in the adipose tissue of individuals who died of ischemic heart disease compared with individuals who died of other causes.[125][126][107]
1984 Recommendation Fat The United Kingdom issues dietary guidelines similar to the Dietary Guidelines for Americans issued in 1980. Both guidelines recommend reducing overall fat consumption to 30% of total calories, and saturated fat to no more than 10% of calories. These values would remain essentially unchanged in subsequent iterations.[124] United Kingdom
1984 Scientific development Low-density lipoprotein Saturated An article published on Time reports that saturated fat is bad and can lead to high cholesterol and fatal heart attacks, as it tends to raise low-density lipoprotein (bad cholesterol) levels.[10]
1984 Industrial development Oleic acid Unsaturated (monounsaturated (ω−9)) High-oleic seed is grown commercially in the United States for the first time in North Dakota, California, and Texas.[81] United States
1984–1986 General intake Western pattern diet Trans fat Hunter and Applewhite report an estimate of trans fatty acids available for consumption in the U.S. diet for 1984 of 7.6 g/person/day. A similar value, 8.3 g/person/day, is obtained independently by a Federation of American Societies for Experimental Biology (FASEB) Review Panel on Trans Fatty Acids.[81]
1985 Recommendation Cholesterol Health organizations begin recommending diet modifications to lower serum cholesterol levels.[73]
1985 Program launch Cholesterol The National Institutes of Health establishes the National Cholesterol Education Program.[127] United States
1985 Scientific development Cholesterol American researchers Michael Stuart Brown and Joseph L. Goldstein receive the Nobel Prize in Physiology or Medicine for their work on genetic causes for high levels of cholesterol in the blood that can lead to heart disease at a young age.[99] United States
1985 General intake Western pattern diet In this year, Americans consume approximately 36%–37% of their calories as fat, which is comprised of 13.2% saturated, 13.8% monounsaturated, and 7.0% polyunsaturated fatty acids.[81] United States
1985 Scientific development Western pattern diet Unsaturated (polyunsaturated (ω-3, ω-6)) Scientists begin linking an imbalance of omega-6 and omega-3 fatty acids to numerous diseases, raising questions about the food supply of Western countries.[22]
1985 Industrial development Canola oil Unsaturated (polyunsaturated (ω−3)) Canola oil is granted the status of Generally Recognized as Safe (GRAS) by the United States FDA, and starts being commercialized in the country.[81] Being high in alpha-Linolenic acid, the parent omega-3, canola oil is associated with good health as would be responsible for a small increase in the omega-3 content in modern western diet in the following decades.[22] United States
1985 Industrial development Microbial oil Microbial oils are introduced into the marketplace. Since then, these would gradually become of increasing importance and value in the niche market of high-value nutraceuticals.[1]
1985 Industrial development Linolenic acid Unsaturated (polyunsaturated (ω−3)) The first single cell oil is launched. This microbial oil is rich in gamma-linolenic acid and is produced using the fungus Mucor circinelloides. This would prompt the appreciation that, with being a novel product, it would have to undergo stringent trials before it could be sold to the general public.[63]
1986 Industrial development Partially hydrogenated oil Saturated McDonald's replaces the saturated fats in some of its products with partially hydrogenated oils, the major source of trans fats.[128]
1986 Scientific development Docosahexaenoic acid Docosahexaenoic acid is discovered in bacteria.[129]
1986 Scientific development Omega‐3 fatty acid sources Unsaturated (polyunsaturated (ω−3)) American endocrinologist Artemis Simopoulos reports that there are more omega-3 fatty acids in leaves than in seeds—and in the leaves of wild plants like purslane than in cultivated plants.[22] United States
1987 Recommendation Cholesterol The report of National Cholesterol Education Program, Adult Treatment Panels suggests the total blood cholesterol level should be: < 200 mg/dL normal blood cholesterol, 200–239 mg/dL borderline-high, > 240 mg/dL high cholesterol.[130]
1987 Scientific development Fish oil Unsaturated (polyunsaturated (ω−3)) Leonard Storlien from University of Sydney finds that fish oil prevents insulin resistance and obesity in rats.[22]
1987 Medical development Cholesterol Lovastatin (sold under the brand name Mevacor among others) is approved for medical use.[131] It is used for treating high blood cholesterol and reduceing the risk of cardiovascular disease.[132]
1987 Policy Fish oil (menhaden) Unsaturated (polyunsaturated (ω−3)) Federal approval for the use of partially hydrogenated menhaden oil in food products is granted in the United States.[81] United States
1988 Publication Lipid The National Cholesterol Education Program, Adult Treatment Panel I (NCEP–ATP I) develops its first set of guidelines, establishing clear goals for patients with lipid abnormalities.[127] United States
1988 Scientific development Trans fatty acid The first hypotheses are formulated concerning the effect of eating trans fatty acids on risk of coronary diseases.[3]
1989 Scientific development Fish Unsaturated (polyunsaturated (ω−3)) A number of trials reveal the benefits of omega-3 fatty acids in preventing death from myocardial infarction. Similar findings report that fish consumption as low as 35 grams per day, or about one serving a week, significantly reduces the risk of myocardial infarction.[22]
1989 Scientific development Baby formula Unsaturated (polyunsaturated (ω−3)) Dennis Hoffman first finds significant differences in the visual and mental acuity of infants raised on formulas with and without omega-3 fatty acids.[22]
1989 Medical development Lipid Pravastatin (sold under the brand name Pravachol) is approved for medical use.[133] It is used for treatment of blood lipids.[134]
1990 Policy Fat The Nutrition Labeling and Education Act of 1990 becomes effective in the United States. It focuses on saturated fat (redefined as all saturated fatty acids) and calls for it to be labeled based on grams per serving and percentage of total energy. The labeling of monounsaturated and polyunsaturated fatty acids is deemed optional. These standards are based on the association between saturated fat intake and risk of cardiovascular disease, but also on observed associations with certain forms of cancer, diabetes, and other diseases.[4] United States
1990 Scientific development Cholesterol Mensink and Katan demonstrate the plasma cholesterol-raising effect of industrially produced trans-octadecenoic acids in human volunteers.[135]
1990 Scientific development Cardiovascular disease Trans fat A large, well-controlled study published in the New England Journal of Medicine shows Conclusively that trans-fatty acids increase total cholesterol and "bad" low-density lipoprotein (LDL), both of which are correlated with increased cardiovascular disease, disproving manufacturers’ advertising which claims that suggest that margarines can be good for the health of the heart.[65]
1990 Scientific development Trans fat, cholesterol Trans fat A Dutch study reports that the trans fatty acids do have an adverse effect on serum cholesterol.[114] Netherlands
1990 Scientific development Trans fat Trans fat An Institute of Medicine report determines that trans fats have "no deleterious effects" on human health.[128] United States
1990–2020 Statistics Western pattern diet In this period in the United States, the amount of calories from consumed fat falls from 40 percent to 30 percent, while obesity doubles and heart disease remains the leading cause of death in the country. These results would prompt a more favorable consensus toward the role of fats in health.[13] United States
1991 General intake Western pattern diet Trans fat Hunter and Applewhite update their estimate of trans fatty acid availability in the U.S. diet for 1989 to be 8.1 g/person/day.[81] United States
1991 Recommendation Trans fat Trans fat The British Committee on Medical Aspects of Health (COMA) recommends that trans fatty acids be limited to 2% of the caloric (energy) intake.[114] United Kingdom
1991 Organization Fatty acids, lipids The International Society for the Study of Fatty Acids and Lipids (ISSFAL) is founded. With more than 500 members from more than 40 countries, it is the foremost International Scientific Society dealing exclusively with the health impact of dietary lipids.[136]
1992 Medical development Lipid Simvastatin (sold under the brand name Zocor) is approved for medical use.[137] It is a lipid-lowering medication.[138]
1992 Reccomendation Western pattern diet In an effort to combat fats, the United States Department of Agriculture recommends up to 11 servings a day of grains, compared with just two to three servings of meat, eggs, nuts, beans and fish combined. Around this time, school districts across the country ban whole milk, yet sweetened chocolate milk remains on the menu as long as it’s low-fat.[139] United States
1993 Recommendation Partially hydrogenated oil Health advocacy groups start calling for fast food chains to stop frying with partially hydrogenated oil.[9]
1993 Scientific development Lipoprotein Additional evidence for age, gender, and high-density lipoprotein importance emerges, reinforcing the need to address these factors.[127]
1993 Policy Saturated fat, cholesterol Saturated The United States FDA requires that saturated fat and cholesterol be listed on food labels.[9] United States
1994 Statistics Cardiovascular disease Trans fat A study estimates that over 30,000 cardiac deaths per year in the United States are attributable to the consumption of trans fats.[140]
1994 Medical development Cholesterol Fluvastatin is introduced for medical use.[141] This drug lowers the total and low density lipoprotein cholesterol levels in hypercholesterolemia.[142]
Mid–1990s Industrial development Hydrogenation By this time, approximately 25 million tons of fats, oils and fatty acids are hydrogenated every year for the food, cosmetics and lubricant industries.[3]
1995 Scientific development Cardiovascular disease Unsaturated (polyunsaturated (ω−3)) American physician Alexander Leaf reports that omega-3 fatty acids also prevent arrhythmia and sudden cardiac death.[22]
1995 General intake Western pattern diet Americans report an average of 25% of daily calories from fats added in food or meal preparation and at the table. As total calories from fat averaged 33% of daily calories, most fats consumed are added at the discretion of food processors, consumers, or preparers rather than naturally occurring.[81] United States
1995–1996 General intake Western pattern diet The European multicentre TRANSFAIR Study is conducted. In it, samples of foods contributing to 95% total fat intake in 14 countries are analyzed centrally for trans-fatty acid content. Among the hydrogenated products, oils and fats are the main contributors (35%) followed by biscuits and cakes (16.5%). As for the biohydrogenated products, dairy products provide 18.8% of the total trans-fatty acids, while meat and meat products contribute 10.3% and butter another 5.9%. Overall, approximately, two-thirds of TFA in European diets are from foods with PHVO, while the remaining one-third is from natural food sources. Thus, in general, Europeans consume a lower proportion of TFA from partially hydrogenated vegetable oils compared with North Americans (∼80%).[67]
1996 Literature Lipid, fatty acid F. D Gunstone publishes Fatty acid and lipid chemistry.[143]
1996 Scientific development Fatty acid Gunstone estimates the existence of over 1000 fatty acids at this time, compared to 300 in 1967.[67]
1996 Medical development Triglyceride, cholesterol Atorvastatin (sold under the brand name Lipitor) is approved for medical use in the United States. This drug reduces levels of triglycerides and harmful low-density lipoprotein cholesterol in the blood and increases levels of beneficial high-density lipoprotein cholesterol.[144] United States
1996 Scientific development Sterol Mellanen et al. suggest that plant sterols may be oestrogenic.[103][145] Finland (University of Turku)
1997 Industrial development Omega-3 eggs Unsaturated (polyunsaturated (ω−3)) Commercial omega-3 eggs are first introduced to the public.[109]
1997 Statistics Fat The United States Department of Agriculture (USDA) reports that fat consumption by humans in the United States can exceed 100 g/day.[146] United States
1998 Literature Fat Caroline M. Pond publishes The Fats of Life.[147]
1999 Scientific development Mental health Unsaturated (polyunsaturated (ω−3)) Joe Hibbeln and Andrew Stoll independently report an inverse correlation between omega-3 fatty acid consumption and the incidence of depression and that fish oil reduces episodes of mania and depression in patients with bipolar disorder.[22] United States
1999 Recommendation Cholesterol, saturated fat Saturated An article published on Time, intolerant towards saturated fats, suggests that cholesterol is "okay", but saturated fat is dangerous. The article reads as follows: "Eat eggs. But beware saturated fat: it may be a bigger threat to the heart and blood vessels than cholesterol."[10]
1999 Scientific development Metabolism Unsaturated (polyunsaturated (ω-3, ω-6)) Tony Hulbert and Paul Else publish data indicating that the degree of unsaturation of an animal’s membranes, a function, in part, of the dietary intake of omega-3s and omega-6s, is the pacemaker of that animal’s metabolism. This discovery creates a new way of looking at the role that greens and seeds play in human health and a framework on which to hang all the other findings about omega-3s.[22]
1999 Recommendation Docosahexaenoic acid An expert panel including the International Society for the Study of Fatty Acids and Lipids (ISSFAL), the U.S. National Institute on Alcohol Abuse and Alcoholism, the U.S. Office of Dietary Supplements at the National Institutes of Health, and the Center for Genetics, Nutrition, and Health, is convened to formulate recommendations for dietary intakes of omega-3 and omega-6 fatty acids. The recommendation for docosahexaenoic acid during pregnancy put forward by the expert panel is 200 mg/day[148]. In addition, the panel recommends 2.22 g/day of linolenic acid for all adults, and an upper limit was established for linoleic acid of 6.67 g/day.[149]
2000 Statistics Oils, fats The global consumption of oils and fats ia 116.4 million tons. The largest volumes are for soybean oil (26.4 mt), palm oil (22.8 mt), rape seed oil (14.5 mt) and sunflower oil (9.4 mt).[150] Worldwide
2001 Scientific development Diabetes Trans fat One study finds that risk of diabetes is higher for those in the highest quartile of trans fat consumption.[151]
2001 Scientific development Docosahexaenoic acid Unsaturated (polyunsaturated (ω−3)) Jeffrey et al.[152] (later Hoffman et al. in 2009[153]) report on docosahexaenoic acid as exerting several roles in the visual system from photoreceptor differentiation to synaptic plasticity in a series of events leading to a direct influence on visual acuity.[149]
2002 Scientific development Mental health Unsaturated (polyunsaturated (ω−3)) Ki Shuk Shim and G. Lubec postulate several mechanisms for the possible protective role of omega-3 fatty acids in dementia.[154] The brain is particularly rich in fatty acids.[149]
2002 Scientific development α-linolenic acid Burdge et al. attempt to disprove the essentiality of α-linolenic acid by showing that 33% of a labeled dose given to a human was exhaled as CO2 in the first 24 h.[81]
2002 Recommendation Monounsaturated fat, Polyunsaturated fat The Institute of Medicine of the National Academies releases the 'Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein and Amino Acids'. The report brief indicates that "monounsaturated and polyunsaturated fatty acids reduce blood cholesterol concentration and help lower the risk of heart disease when they replace saturated fatty acids in the diet".[155] It also recommends that the consumption of trans fatty acids be as low as possible.[7] United States
2003 Recommendation Saturated fatty acid Saturated A report by the World Health Organization and the Food and Agriculture Organization (FAO) recommends limiting the saturated fatty acids to less than 10% of daily energy intake and less than 7% for high-risk groups.[156]
2003 Scientific development Breast cancer Saturated A meta-analysis finds a significant positive relationship between saturated fat and breast cancer.[157]
2003 Scientific development Cholesteryl ester Trans fat A randomized crossover study comparing the effect of eating a meal on blood lipids of (relatively) cis and trans-fat-rich meals shows that cholesteryl ester transfer (CET) is 28% higher after the trans meal than after the cis meal and that lipoprotein concentrations are enriched in apolipoprotein(a) after the trans meals.[158]
2003 Scientific development Alzheimer disease Saturated, trans fat A study published in Archives of Neurology suggests that the intake of both trans fats and saturated fats promotes the development of Alzheimer disease.[159]
2003 General intake Western pattern diet In the United States, 81.3% of total edible fats and oils consumed comprise vegetable oils, an increase from 56.7% in 1965.[67] United States
2003 Policy Trans fat (industrially-produced) Trans fat Denmark pioneers the banning of industrially-produced trans fats in food.[160] The food regulatory agency of that country bans the use of all hydrogenated fats from food products, but at the same time made an explicit exception allowing the use of animal fats containing natural trans fatty acids as these were viewed as chemically different.[3] Denmark
2003 Medical development Cholesterol, triglyceride Pitavastatin is approved for medical use.[161] It is used for lowing blood total cholesterol, low-density lipoprotein cholesterol and triglycerides.[162]
2003 Medical development Triglyceride, cholesterol Lipitor becomes the best-selling pharmaceutical in history.[163]
2003 Policy Trans-fat United States FDA rules that the amount of trans-fat in a food item must be stated on the label after January 1, 2006. Food items could be labeled 0% trans if they contain less than 0.5 g per serving.[63] United States
2004 Scientific development Saturated fat Saturated A review concludes that "no lower safe limit of specific saturated fatty acid intakes has been identified" and recommends that the influence of varying saturated fatty acid intakes against a background of different individual lifestyles and genetic backgrounds should be the focus in future studies.[164]
2004 Recommendation Cardiovascular disease Trans fat The European Food Safety Authority produces a scientific opinion on trans fatty acids, surmising that "higher intakes of TFA may increase risk for coronary heart disease.[165]
2004 Literature Oil, fat F. D. Gunstone publishes The Chemistry of Oils and Fats: Sources, Composition, Properties, and Uses.[166]
2004 Policy Phytosterol, phytostanol The European Union Commission publishes Regulation 608/2004/EC concerning the labelling of foods and food ingredients with added phytosterols, phytosterol esters, phytostanols and/or phytostanol esters, requiring such products to be labelled with additional information including the words “with added plant sterols/plant stanols”.[103]
2004–2005 Industrial development Fat and oil production World production of fats and oil is about 137 million metric tons in this period. At the same time, the consumption of oil is forecast to be 138 MMTs. Palm oil overtakes soybean oil for the first time in worldwide production.[81] Worldwide
2004–2005 Scientific development Western pattern diet Trans fat An analysis of samples of McDonald's French fries collected finds that fries served in New York City contain twice as much trans fat as in Hungary, and 28 times as much as in Denmark, where trans fats are restricted. For Kentucky Fried Chicken products, the pattern is reversed: the Hungarian product containing twice the trans fat of the New York product. Even within the United States, there is variation, with fries in New York containing 30% more trans fat than those from Atlanta.[167]
2005 Scientific development Bone density Unsaturated (polyunsaturated (ω-3, ω-6)) The influence of the ω-6/ω-3 ratio upon bone mineral density in elderly adults is assessed by Weiss et al. An increase in the ratio is seen to be significantly and independently correlated with increased bone mineral density of the hip in all participating women, and of the spine in women receiving hormone therapy. Similar results would be obtained in other studies.[112][168][169]
2005 Scientific development Metathesis Yves Chauvin, Robert H. Grubbs, and Richard R. Schrock are awarded the Nobel Prize in Chemistry for their pioneering work in metathesis catalyst development (Grubbs and Schrock) and elucidation of the reaction mechanism (Chauvin).[63]
2006 (January 1) Policy Label Trans fat The first direct regulation of trans fat by the United States FDA is a requirement that it be labeled in amounts above 0.5g per serving, which takes effect on January 1.[170] United States
2006 Research Bone density Saturated A study indicates that the intake of saturated fat has a negative effect on the mineral density of bones. The study suggests that men may be particularly vulnerable.[171]
2006 Policy Trans fat (artificial) Trans fat New York City passes a law banning artificial trans fats in all restaurant foods.[8] United States
2006 Policy Trans fat Trans fat Argentina starts requiring trans fat content labeling.[172] Argentina
2006 Scientific development Shortening Trans fat An analysis of some industrialized foods finds up to 30% "trans fats" in artificial shortening, 10% in breads and cake products, 8% in cookies and crackers, 4% in salty snacks, 7% in cake frostings and sweets, and 26% in margarine and other processed spreads.[173]
2006 Scientific development Cardiovascular disease Trans fat A study published in the New England Journal of Medicine shows that, for every 2 percent of calorie intake that comes from trans fats, a person's heart disease risk increases by 23 percent.[174]
2007 Scientific development Palm oil Interesterified A study funded by the Malaysian Palm Oil Board[175] claims that replacing natural palm oil by other interesterified or partial hydrogenated fats cause adverse health effects, such as higher LDL/HDL ratio and plasma glucose levels. However, these effects could be attributed to the higher percentage of saturated acids in the IE and partially hydrogenated fats, rather than to the IE process itself.[176][177]
2007 Scientific development Phytosterol P.G. Bradford and A.B. Awad claim a cancer-protective effect for phytosterols in humans.[103][178] United States
2007 Scientific development Infertility Trans fat A study finds that each 2% increase in the intake of energy from trans unsaturated fats, as opposed to that from carbohydrates, is associated with a 73% greater risk of ovulatory infertility.[179]
2007 Program launch Cardiovascular disease Trans fat The American Heart Association launches its "Face the Fats" campaign to help educate the public about the negative effects of trans fats.[180] United States
2008 Scientific development Plant sterol The European Food Safety Authority judges that the available scientific evidence justifying the claim that plant sterols lower/reduce blood cholesterol, and that blood cholesterol lowering may reduce the risk of coronary heart disease.[103]
2008 Recommendation Type 2 diabetes The American Diabetes Association recommends low-carbohydrate or low-fat diets for weight management in patients with established type 2 diabetes, while the amount of monounsaturated fatty acids is not specified.[181] United States
2008 Policy Trans fat Trans fat Switzerland bans trans fats.[182] Switzerland
2008 Policy Trans fat Trans fat Calgary becomes the first city in Canada to ban trans fats from restaurants and fast-food chains.[183] Canada
2008 Scientific development Palmitoleic acid Unsaturated (monounsaturated (ω−7)) Researchers at Harvard University discover that the palmitoleic acid in omega-7 fatty acid acts like a hormone in the human body, rather than a protein, and is what the weight loss factor is attributed to; it's this part of the amino acid that fights against obesity and its related diseases and conditions.[184][185] United States
2008 Scientific development Weight loss A study published in the New England Journal of Medicine, looking at more than 300 subjects who tried either a low-fat, a low-carb or a Mediterranean diet, finds that people on the low-fat diet lost less weight than those on the low-carb or Mediterranean diet, both of which feature high amounts of fat. These results match multiple other studies having found that it’s very difficult to lose weight on a very low-fat diet, possibly because fat and meat can produce a sense of satiety that’s harder to achieve with carbs, making it easier to simply stop eating.[139]
2009 Literature Oil, fat Frank Gunstone publishes Oils and Fats in the Food Industry.[186]
2009 Scientific development Asthma Unsaturated (polyunsaturated (ω-3, ω-6)) Artemis P. Simopoulos suggests that a ω-6/ω-3 ratio of 5:1 exerts beneficial effects upon asthma, while a ratio of 10:1 has adverse effects.[187][112]
2010 Recommendation Cardiovacsular disease, obesity Saturated, Unsaturated A conference of the American Dietetic Association takes place, at which concerns are expressed that a blanket recommendation to avoid saturated fats could drive people to also reduce the amount of polyunsaturated fats, which may have health benefits, and/or replace fats by refined carbohydrates — which carry a high risk of obesity and heart disease.[188] United States
2010 (April 15) Recommendation Trans fat Trans fat A British Medical Journal editorial calls for trans fats to be "virtually eliminated in the United Kingdom by next year".[189] United Kingdom
2010 Scientific development Cardiovascular disease Saturated An evaluation of 21 studies and 350,000 subjects finds that saturated fat is not associated with an increased risk of coronary heart disease.[13] The meta-analysis concludes that there is no significant evidence that saturated fat is associated with an increased risk of cardiovascular disease.[139]
2010 General intake Western pattern diet Trans fat According to the FDA, the average American consumes 5.8 grams of trans fat per day (2.6% of energy intake).[190] United States
2011 Scientific development Triglyceride The American Heart Association's scientific statement says triglyceride is not a direct cause of atherosclerosis but it is a marker of cardiovascular disease risk.[191][192] United States
2011 Recommendation Cardiovascular disease A study by heart researchers suggest people focus on eating high-quality food instead of particular fat quantities.[193]
2012 Recommendation Industrially produced trans fatty acid Trans fat The Conseil Supérieur de la Santé in Belgium publishes a science-policy advisory report on industrially produced trans fatty acids that focuses on the general population. Its recommendation to the legislature is to prohibit more than 2 g of trans fatty acids per 100 g of fat in food products.[194] Belgium
2012 Scientific development Mental health Trans fat An observational analysis of subjects of an earlier study finds a strong relation between dietary trans fat acids and self-reported behavioral aggression and irritability, suggesting but not establishing causality.[195]
2013 Scientific development Industrial trans fatty acid Trans fat A team of Dutch scientists confidently write that "the detrimental effects of industrial trans fatty acids on heart health are beyond dispute".[128] Netherlands
2013 (late year) Policy Oil (hydrogenated) The United States FDA announces plans to remove partially hydrogenated oils from the list of generally regarded as safe (GRAS).[63] United States
2014 (March) Scientific development Cardiovascular disease Saturated An article published in the Annals of Internal Medicine reports that eating less saturated fat doesn’t actually lower a person’s risk for heart disease. The study concludes that the evidence does not clearly support cardiovascular guidelines that encourage high consumption of polyunsaturated fatty acids and low consumption of total saturated fats.[196][197]
2014 (July 23) Recommendation Sugar An article published on Time reports on an excesive focus on fats and suggests a turn into a focus on the harmful effect of sugar. The article reads: "Now it's becoming clear that even the saturated fat found in a medium-rare steak or a slab of butter has a more complex and, in some cases, benign effect on the body than previously thought. ... New research suggests that it's the overconsumption of carbohydrates, sugar and sweeteners that is chiefly responsible for the epidemics of obesity and Type 2 diabetes."[10]
2014 Scientific development Butter Saturated New York Times food writer Mark Bittman writes article titled Butter is back, which goes through the research on how saturated fat isn't nearly as harmful as it was thought and argues that artificial foods (like margarine) should be ditched in favor of natural foods (like butter).[10][198]
2014 Policy Fat Certification mark It becomes obligatory in Israel to mark food products with more than 2% of fat by weight.[199] Israel
2014 Policy Vegetable oil From December, all food products produced in the European Union are legally required to indicate the specific vegetable oil used in their manufacture, following the introduction of the Food Information to Consumers Regulation.[200] European Union
2015 Recommendation Cholesterol, saturated fat The United States Department of Agriculture Dietary Guidelines Advisory Committee (DGAC) recommends that Americans eat as little dietary cholesterol as possible, because most foods that are rich in cholesterol are also high in saturated fat and thereby may increase the risk of cardiovascular disease.[201][202][10] United States
2015 Recommendation Partially hydrogenated oil The Food and Drug Administration Trusted Source states that partially hydrogenated oil is not safe, and removing it from food could prevent thousands of heart attacks each year.[203] United States
2015 Policy Artificial trans-fat Trans fat The Food and Drug Administration decides that artificial trans-fat must be removed from the food supply in United States over the next 3 years because of health concern. However, all trans-fat would not be eliminated because those which occur naturally in meat and dairy products would still be permitted. FDA also agrees that small amount of TFAs produced during commercial refining can remain.[63] United States
2015 Scientific development Cardiovascular disease Saturated A review by British international charitable organization Cochrane of long-term randomized controlled trials on saturated fat, finds that reducing one's saturated fat intake can reduce the risk of cardiovascular disease, but it depends on what food is being replaced with, as people who replace saturated fat with unsaturated fat got the most benefit.[10][204] United Kingdom
2015 Recommendation Trans fat Trans fat The Food and Drug Administration Trusted Source declares that trans fat is not “generally recognized as safe” and has to be phased out by 2018.[203] United States
2015 Scientific development Cardiovascular disease A study published on The BMJ re-evaluating the traditional diet-heart hypothesis concludes that replacing poly-unsaturated fat with saturated fat does not seem to reduce the risk of mortality.[10][205]
2015 Scientific development Western pattern diet Unsaturated (polyunsaturated (ω−3)) According to a study, trans fats are one of several components of Western pattern diets which promote acne, along with carbohydrates with high glycemic load such as refined sugars or refined starches, milk and dairy products, and saturated fats, while omega-3 fatty acids, which reduce acne, are deficient in Western pattern diets.[206]
2015 Scientific development Mental health Trans fat A study argues that "greater dietary trans fatty acid consumption is linked to worse word memory in adults during years of high productivity, adults age <45".[207]
2015 Scientific development Weight loss A stury published on The Lancet analizing the effect of low-fat diet interventions versus other diet interventions on long-term weight change in adults, concludes that people on low-fat diets don't lose more weight.[10][208]
2016 Literature Fat Michelle Phillipov publishes Fats: A Global History.[209]
2017 Scientific development Cardiovascular disease Unsaturated (polyunsaturated) A review by the American Heart Association estimates that replacement of saturated fat with polyunsaturated fat in the American diet could reduce the risk of cardiovascular diseases by 30%.[210] United States
2017 Policy Trans fat Trans fat Health Canada announces complete ban of trans fats in the country.[211] Canada
2018 Program launch Cardiovascular disease Trans fat The World Health Organization launches a plan to eliminate trans fat from the global food supply. They estimate that trans fat leads to more than 500,000 deaths from cardiovascular disease yearly.[212]
2018 Statistics Energy homeostasis Trans fat The 2018 Dutch Nutrition Survey reports that in this year, trans fatty acids only provided ∼0.3% of the daily energy requirement, as opposed to 5–10% several decades ago.[107]
2018 Literature Fat Vinood B. Patel publishes The Molecular Nutrition of Fats, which presents the nutritional and molecular aspects of fats by assessing their dietary components, their structural and metabolic effects on the cell, and their role in health and disease.[213]
2019 Policy Partially-hydrogenated oil The Ministry of Health of Singapore announces that partially-hydrogenated oils (PHOs) will be banned.[214] Singapore
2020 Policy Trans fat Trans fat The Saudi Minister of Health announces the ban of trans fat in all food products in the country due to their health risks.[215] Saudi Arabia
2020 (August 19) Policy Trans fat Trans fat The President of Romania promulgates a law that limits trans fats to 2 grams per every 100 grams of fat, max. The food producers not conforming would be fined with a sum ranging between 10,000 and 30,000 lei.[216][217] Romania
2021 (January 20) Scientific development Saturated fat Saturated Michael Easter publishes an article prominently featuring Harvard professor Walter Willett, who discusses his research, the challenges of conducting large-scale and rigorous nutrition studies, and his critics. Willett notes that his studies have consistently shown that when it comes to heart disease, saturated fats—which are found primarily in meat and dairy products—aren’t necessarily bad but they’re not necessarily good.[218][219] United States
2021 Scientific development Cardiovascular disease Saturated A review finds that diets high in saturated fat are associated with higher mortality from all-causes and cardiovascular disease.[220]
2021 Policy Trans fat (industrial) Trans fat Foods in the EU intended for consumers are required to contain less than 2g of industrial trans fat per 100g of fat.[221]
2021 Scientific development Cardiovascular disease An observational study involving 10,529 incident coronary heart disease (CHD) cases and a random subcohort of 16,730 adults selected from a cohort of 385,747 participants in 9 countries finds no strong associations of total fatty acids, saturated fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids, with incident coronary heart disease. By contrast, the researchers find associations of saturated fatty acids with coronary heart disease in opposite directions dependent on the food source.[222] United States
2025 Market trend Fatty acid Unsaturated (polyunsaturated) The polyunsaturated fatty acids Market is forecast to reach US$10.59 billion by this year, due to growing popularity.[223]

Numerical and visual data

Google Scholar

The following table summarizes per-year mentions on Google Scholar as of October 6, 2021.

Year "trans fat" "saturated fat" "fatty acid" "triglyceride"
1900 1 2 52 19
1910 0 4 123 9
1920 0 1 171 13
1930 1 6 261 21
1940 1 14 399 41
1950 0 14 811 80
1960 2 72 2,060 376
1970 1 157 5,520 1,980
1980 6 537 9,440 3,440
1990 17 1,240 16,700 5,380
2000 83 2,570 35,300 11,000
2010 1,460 6,330 116,000 30,100
2020 2,360 9,960 68,700 32,200
Fat gsch.png

Google Trends

The chart below shows Google Trends data for Fat (food), from January 2004 to October 2021, when the screenshot was taken. Interest is also ranked by country and displayed on world map.[224]

Fat gt.png

Google Ngram Viewer

The comparative chart below shows Google Ngram Viewer data for trans fat, saturated fat, fatty acid and triglyceride from 1800 to 2019.[225]

Fat ngram.png

Wikipedia Views

The chart below shows pageviews of the English Wikipedia article Fat, from July 2015 to September 2021.[226]


Fat wv.png

Meta information on the timeline

How the timeline was built

The initial version of the timeline was written by User:Sebastian.

Funding information for this timeline is available.

Feedback and comments

Feedback for the timeline can be provided at the following places:

  • FIXME

What the timeline is still missing

Timeline update strategy

See also

External links

References

  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 1.29 1.30 1.31 1.32 1.33 1.34 1.35 1.36 1.37 1.38 1.39 1.40 1.41 1.42 1.43 1.44 1.45 1.46 1.47 1.48 1.49 1.50 1.51 1.52 1.53 1.54 1.55 1.56 1.57 1.58 1.59 Ahmad, Moghis U. (21 July 2017). Fatty Acids: Chemistry, Synthesis, and Applications. Elsevier. ISBN 978-0-12-809544-7. 
  2. 2.0 2.1 2.2 Spector, Arthur A.; Kim, Hee-Yong (January 2015). "Discovery of essential fatty acids". Journal of Lipid Research. 56 (1): 11–21. doi:10.1194/jlr.R055095. 
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Trans fatty acids in human nutrition (2nd ed.). Bridgwater, England: Oily Press. 2009. ISBN 0955251230. 
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 Lichtenstein, Alice H. (27 April 2009). "Dietary Fat: A History". Nutrition Reviews. 57 (1): 11–14. doi:10.1111/j.1753-4887.1999.tb01770.x. 
  5. 5.0 5.1 5.2 Uauy, Ricardo; Valenzuela, Alfonso (July 2000). "Marine oils: the health benefits of n-3 fatty acids". Nutrition. 16 (7-8): 680–684. doi:10.1016/s0899-9007(00)00326-9. 
  6. 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 "Trans fat | food product". Encyclopedia Britannica. Retrieved 5 October 2021. 
  7. 7.0 7.1 Storey, Maureen L; Anderson, Patricia A (1 May 2015). "Changes in Mean Intake of Fatty Acids and Intake of Saturated and trans Fats from Potatoes: NHANES 2005–2006, 2007–2008, and 2009–2010". Advances in Nutrition. 6 (3): 376S–382S. doi:10.3945/an.114.007039. 
  8. 9.0 9.1 9.2 9.3 "Rise and fall of trans fat: A history of partially hydrogenated oil". latimes.com. Retrieved 7 October 2021. 
  9. 10.00 10.01 10.02 10.03 10.04 10.05 10.06 10.07 10.08 10.09 10.10 10.11 10.12 Belluz, Julia (24 November 2015). "For years, the government told Americans to avoid fat. That was wrong.". Vox. Retrieved 2 December 2021. 
  10. 11.0 11.1 Malhotra, Aseem (22 October 2013). "Saturated fat is not the major issue". BMJ. 347: f6340. ISSN 1756-1833. doi:10.1136/bmj.f6340. 
  11. "Time for a rethink on saturated fat?". foodnavigator-usa.com. Retrieved 3 December 2021. 
  12. 13.0 13.1 13.2 13.3 "Everyone Was Wrong: Saturated Fat Can Be Good for You". Greatist. 21 November 2013. Retrieved 3 December 2021. 
  13. "The Truth About Saturated Fats - Dr Sarah Brewer". drsarahbrewer.com. Retrieved 3 December 2021. 
  14. "The truth about fats: the good, the bad, and the in-between". Harvard Health. 3 February 2015. Retrieved 3 December 2021. 
  15. Cannon, Barbara; Nedergaard, Jan (August 2008). "Neither fat nor flesh". Nature. 454 (7207): 947–948. doi:10.1038/454947a. 
  16. 17.0 17.1 17.2 17.3 Kuijpers', 'Petra M. J. C. "History in medicine: the story of cholesterol, lipids and cardiology". www.escardio.org. Retrieved 30 October 2021. 
  17. "Fish oils". Versus Arthritis. Retrieved 30 October 2021. 
  18. 19.0 19.1 19.2 "Fat | substance". Encyclopedia Britannica. Retrieved 16 September 2021. 
  19. "Lipids | Boundless Chemistry". courses.lumenlearning.com. Retrieved 6 October 2021. 
  20. 21.0 21.1 "Description of various lipids | Cyberlipid". cyberlipid.gerli.com. Retrieved 16 October 2021. 
  21. 22.00 22.01 22.02 22.03 22.04 22.05 22.06 22.07 22.08 22.09 22.10 22.11 22.12 22.13 22.14 22.15 22.16 22.17 22.18 22.19 22.20 22.21 22.22 22.23 22.24 22.25 22.26 22.27 22.28 22.29 22.30 22.31 22.32 22.33 22.34 22.35 22.36 22.37 22.38 22.39 Allport, Susan (2006). The queen of fats : why omega-3s were removed from the Western diet and what we can do to replace them. Berkeley: University of California Press. ISBN 9780520242821. 
  22. Chevreul, M. E. (1813). Sur plusieurs corps gras, et particulièrement sur leurs combinaisons avec les alcalis. Annales de Chimie, t. 88, p. 225-261. link (Gallica), link (Google).
  23. Chevreul, M. E. Recherches sur les corps gras d'origine animale. Levrault, Paris, 1823. link.
  24. Menten, P. Dictionnaire de chimie: Une approche étymologique et historique. De Boeck, Bruxelles. link.
  25. Chevreul (1815) "Lettre de M. Chevreul à MM. les rédacteurs des Annales de chimie" (Letter from Mr. Chevreul to the editors of the Annals of Chemistry), Annales de chimie, 94 : 73–79; in a footnote spanning pages 75–76, he mentions that he had found a substance that is responsible for the smell of butter.
  26. Chevreul (1816) "Recherches chimiques sur les corps gras, et particulièrement sur leurs combinaisons avec les alcalis. Sixième mémoire. Examen des graisses d'homme, de mouton, de boeuf, de jaguar et d'oie" (Chemical researches on fatty substances, and particularly on their combinations o filippos ine kapios with alkalis. Sixth memoir. Study of human, sheep, beef, jaguar and goose fat), Annales de Chimie et de Physique, 2 : 339–372. From page 346 : "Je nommerai cholesterine, de χολη, bile, et στερεος, solide, la substance cristallisée des calculs biliares humains, ... " (I will name cholesterine – from χολη (bile) and στερεος (solid) – the crystalized substance from human gallstones ... )
  27. Olson RE (February 1998). "Discovery of the lipoproteins, their role in fat transport and their significance as risk factors". The Journal of Nutrition. 128 (2 Suppl): 439S–443S. PMID 9478044. doi:10.1093/jn/128.2.439SFreely accessible. 
  28. Braconnot H (31 March 1815). "Sur la nature des corps gras.". Annales de chimie. 2 (XCIII): 225–277. 
  29. "Caproic acid: structural and chemical formula, sources". Tuscany Diet. Retrieved 29 October 2021. 
  30. "Hexanoic acid". pubchem.ncbi.nlm.nih.gov. Retrieved 29 October 2021. 
  31. "Caproic Acid Natural (Decanoic Acid)". Vigon. 30 October 2019. Retrieved 29 October 2021. 
  32. 33.0 33.1 "Elaidic acid: chemical structure, properties and food sources". Tuscany Diet. Retrieved 29 October 2021. 
  33. "Elaidic Acid (CAS 112-79-8)". www.caymanchem.com. Retrieved 29 October 2021. 
  34. "§ POUTET (Jean-Joseph-Etienne). Instruction... - Lot 495". Millon (in français). Retrieved 30 October 2021. 
  35. Chevreul ME (1823). Recherches sur les corps gras d'origine animale. Paris: Levrault. 
  36. Leray C (2012). Introduction to Lipidomics. Boca Raton: CRC Press. ISBN 9781466551466. 
  37. "Stearic acid: chemical structure, properties, food sources". Tuscany Diet. Retrieved 28 October 2021. 
  38. 39.0 39.1 39.2 "Oleic acid: structure, health benefits, and food sources". Tuscany Diet. Retrieved 29 October 2021. 
  39. "oleic acid (CHEBI:16196)". www.ebi.ac.uk. Retrieved 29 October 2021. 
  40. "Wayback Machine". web.archive.org. 13 October 2017. 
  41. Prout W (1827). "On the ultimate composition of simple alimentary substances, with some preliminary remarks on the analysis of organised bodies in general.". Phil. Trans.: 355–388. 
  42. Frémy, E. (1842). "Memoire sur les produits de la saponification de l'huile de palme". Journal de Pharmacie et de Chimie. XII: 757. 
  43. Playfair, Lyon (2009). "XX. On a new fat acid in the butter of nutmegs". Philosophical Magazine. Series 3. 18 (115): 102–113. ISSN 1941-5966. doi:10.1080/14786444108650255. 
  44. "Lauric acid: chemical structure, properties, food sources". Tuscany Diet. Retrieved 27 October 2021. 
  45. Pelouze TJ, Gélis A (1844). "Mémoire sur l'acide butyrique". Annales de Chimie et de Physique. 10: 434. 
  46. Chim Phys 10 (1844). Pelouze, J. Ann. Page 434.
  47. 48.0 48.1 48.2 "Linoleic acid: definition, structure, function, and foods". Tuscany Diet. Retrieved 29 October 2021. 
  48. "Linoleic acid". pubchem.ncbi.nlm.nih.gov. Retrieved 29 October 2021. 
  49. Johann Gottlieb (1844) "Ueber die Einwirkung von schmelzendem Kalihydrat auf Rohrzucker, Gummi, Stärkmehl und Mannit" (On the effect of molten potassium hydroxide on raw sugar, rubber, starch powder, and mannitol), Annalen der Chemie und Pharmacie, 52 : 121–130. After combining raw sugar with an excess of potassium hydroxide and distilling the result, Gottlieb obtained a product that he called "Metacetonsäure" (meta-acetone acid) on p. 122: "Das Destillat ist stark sauer und enthält Ameisensäure, Essigsäure und eine neue Säure, welche ich, aus unten anzuführenden Gründen, Metacetonsäure nenne." (The distillate is strongly acidic and contains formic acid, acetic acid, and a new acid, which for reasons to be presented below I call "meta-acetone acid".)
  50. Zeisel, Steven H. (2012). "A Brief History of Choline". Annals of Nutrition and Metabolism. 61 (3): 254–258. doi:10.1159/000343120. 
  51. "Behenic acid: chemical structure, properties, food sources". Tuscany Diet. Retrieved 9 November 2021. 
  52. "Erucic acid a possible health risk for highly exposed children | EFSA". www.efsa.europa.eu. Retrieved 9 November 2021. 
  53. "Characterisation of Fat Crystal Polymorphism in Cocoa Butter". 
  54. Berthelot, Marcellin (1854). "Sur les combinaisons de le glycérine avec les acides et sur la synthèse des principes immédiats des graisses des animaux" [On the compounds of glycerin with acids and on the synthesis of immediate principles of animal fats]. Annales de Chimie et de Physique. 3rd series (in French). 41: 216–319.  ; see "Triacétine", pp. 282–283.
  55. 56.0 56.1 56.2 "Palmitoleic acid: structure, synthesis, sources, lipokines". Tuscany Diet. Retrieved 29 October 2021. 
  56. Virchow, Rudolf (1856). "Gesammelte Abhandlungen zur wissenschaftlichen Medizin". Vierteljahrschrift für die praktische Heilkunde. Germany: Staatsdruckerei Frankfurt. Phlogose und Thrombose im Gefäßsystem. 
  57. Preedy, Victor R.; Srirajaskanthan, Rajaventhan; Patel, Vinood B. (4 July 2013). Handbook of Food Fortification and Health: From Concepts to Public Health Applications Volume 1. Springer Science & Business Media. ISBN 978-1-4614-7076-2. 
  58. "Butter vs. margarine: Which is better for my heart?". Mayo Clinic. Retrieved 28 October 2021. 
  59. "Brassidic acid: chemical structure, properties". Tuscany Diet. Retrieved 29 October 2021. 
  60. 61.0 61.1 61.2 "alpha-Linolenic acid: structure, metabolism, food sources". Tuscany Diet. Retrieved 29 October 2021. 
  61. "Alpha-linolenic acid Information | Mount Sinai - New York". Mount Sinai Health System. Retrieved 29 October 2021. 
  62. 63.00 63.01 63.02 63.03 63.04 63.05 63.06 63.07 63.08 63.09 63.10 Ahmad, Moghis U. (21 July 2017). Fatty Acids: Chemistry, Synthesis, and Applications. Elsevier. ISBN 978-0-12-809544-7. 
  63. "Omega-9 Fatty Acid - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 29 October 2021. 
  64. 65.0 65.1 65.2 65.3 65.4 65.5 65.6 Taubes, Gary (2008). Good Calories, Bad Calories: Fats, Carbs, and the Controversial Science of Diet and Health. Anchor Books. ISBN 978-1-4000-3346-1. 
  65. 66.0 66.1 "Gadoleic acid: chemical structure, properties, and food sources". Tuscany Diet. Retrieved 6 November 2021. 
  66. 67.0 67.1 67.2 67.3 67.4 67.5 Trans fatty acids. Oxford: Blackwell Pub. 2008. ISBN 1405156910. 
  67. 68.0 68.1 68.2 68.3 68.4 Watson, Ronald Ross; Demeester, Fabien (9 December 2015). Handbook of Lipids in Human Function: Fatty Acids. Elsevier. ISBN 978-1-63067-035-1. 
  68. Konstantinov, IE; Jankovic, GM (2013). "Alexander I. Ignatowski: a pioneer in the study of atherosclerosis.". Texas Heart Institute journal. 40 (3): 246–9. PMID 23914012. 
  69. "Alpha-linolenic Acid: Health Benefits, Side Effects, Uses, Dose & Precautions". RxList. Retrieved 29 October 2021. 
  70. Team, EBI Web. "petroselinic acid (CHEBI:28194)". www.ebi.ac.uk. Retrieved 6 November 2021. 
  71. Vongerichten, E.; Köhler, A. (April 1909). "Über Petroselinsäure, eine neue Ölsäure". Berichte der deutschen chemischen Gesellschaft. 42 (2): 1638–1639. doi:10.1002/cber.19090420232. 
  72. 73.0 73.1 73.2 73.3 73.4 O'Brien, Richard D. (5 December 2008). Fats and Oils: Formulating and Processing for Applications, Third Edition. CRC Press. ISBN 978-1-4200-6167-3. 
  73. Rosenbloom J, Gies WJ (1911). "Suggestion to teachers of biochemistry. I. A proposed chemical classification of lipins, with a note on the intimate relation between cholesterols and bile salts.". Biochem. Bull. 1: 51–6. 
  74. "Read How Nutrition Careers Have Evolved Over Time". Natural Healers. 7 October 2016. Retrieved 14 September 2021. 
  75. Hamilton, R. J. (6 December 2012). Recent Advances in Chemistry and Technology of Fats and Oils. Springer Science & Business Media. ISBN 978-94-011-7471-8. 
  76. 77.0 77.1 Guide to Nutritional Supplements. Academic Press. 2 September 2009. ISBN 978-0-12-375661-9. 
  77. Konstantinov, IE; Mejevoi, N; Anichkov, NM (2006). "Nikolai N. Anichkov and his theory of atherosclerosis.". Texas Heart Institute journal. 33 (4): 417–23. PMID 17215962. 
  78. 79.0 79.1 79.2 Lees, Robert S. (24 July 2020). Omega-3 Fatty Acids in Health and Disease. CRC Press. ISBN 978-1-000-14759-9. 
  79. Aron H. Uber den nahrwert. Biochem Z 1918
  80. 81.00 81.01 81.02 81.03 81.04 81.05 81.06 81.07 81.08 81.09 81.10 81.11 Fatty acids in foods and their health implications. CRC Press. 2008. ISBN 0849372615. 
  81. 82.0 82.1 82.2 82.3 "Essential fatty acids: definition, functions, and foods". Tuscany Diet. 16 August 2012. Retrieved 29 October 2021. 
  82. Spector, Arthur A.; Kim, Hee-Yong (January 2015). "Discovery of essential fatty acids". Journal of Lipid Research. 56 (1): 11–21. doi:10.1194/jlr.R055095. 
  83. Template:Patent
  84. Bloor, W. R. (1 March 1920). "Outline of a classification of the lipoids". Experimental Biology and Medicine. 17 (6): 138–140. doi:10.3181/00379727-17-75. 
  85. Christie WW, Han X (2010). Lipid Analysis: Isolation, Separation, Identification and Lipidomic Analysis. Bridgwater, England: The Oily Press. ISBN 9780857097866. 
  86. Bertrand G (1923). "Projet de reforme de la nomenclature de Chimie biologique". Bulletin de la Société de Chimie Biologique. 5: 96–109. 
  87. "Nervonic acid". pubchem.ncbi.nlm.nih.gov. Retrieved 7 November 2021. 
  88. "Nervonic acid: structure, function, synthesis, sources". Tuscany Diet. Retrieved 7 November 2021. 
  89. Bauman, Dale. "cis-9, trans-11 CLA - A Potent Anticarcinogen Found in Milk Fat". Archived from the original on 2006-09-07. Retrieved 2007-01-15. 
  90. Banni, Sebastiano; Angioni, Elisabetta; Murru, Elisabetta; Carta, Gianfranca; Paola Melis, Maria; Bauman, Dale; Dong, Yan; Ip, Clement (September 2001). "Vaccenic Acid Feeding Increases Tissue Levels of Conjugated Linoleic Acid and Suppresses Development of Premalignant Lesions in Rat Mammary Gland". Nutrition and Cancer. 41 (1-2): 91–97. doi:10.1080/01635581.2001.9680617. 
  91. Lock AL, Corl BA, Barbano DM, Bauman DE, Ip C (October 1, 2004). "The anticarcinogenic effect of trans-11 18:1 is dependent on its conversion to cis-9, trans-11 CLA by delta9-desaturase in rats". J Nutr. 134 (10): 2698–704. PMID 15465769. doi:10.1093/jn/134.10.2698Freely accessible. Retrieved 2007-01-15. 
  92. "Essential Fatty Acids and Skin Health". Linus Pauling Institute. 7 November 2016. 
  93. "11 Proven Benefits of Olive Oil". Healthline. 14 September 2018. Retrieved 29 October 2021. 
  94. "Primex All Purpose Vegetable Shortening - For Frying". bakersauthority.com. Retrieved 30 November 2021. 
  95. Aitzetmüller, Kurt (November 2012). "Santalbic acid in the plant kingdom". Plant Systematics and Evolution. 298 (9): 1609–1617. doi:10.1007/s00606-012-0678-5. 
  96. Bengen, M. F. (7 May 1951). "Mein Weg zu den neuen Harnstoff-Einschluß-Verbindungen". Angewandte Chemie. 63 (9): 207–208. doi:10.1002/ange.19510630903. 
  97. Hawley, H. K.; Holman, G. W. (1 January 1956). "Directed interesterification as a new processing tool for lard". Journal of the American Oil Chemists Society. 33 (1): 29–35. ISSN 1558-9331. doi:10.1007/BF02638347. 
  98. 99.0 99.1 Pond, Caroline M. (13 August 1998). The Fats of Life. Cambridge University Press. ISBN 978-0-521-63577-6. 
  99. Biogenesis of fatty acids, lipids and membranes. Cham. 2018. ISBN 9783319436760. 
  100. Asselineau, J.; Lederer, E. (November 1950). "Structure of the Mycolic Acids of Mycobacteria". Nature. 166 (4227): 782–783. ISSN 1476-4687. doi:10.1038/166782a0. 
  101. "What are fatty acids and their derivatives?" (PDF). tdx.cat. 
  102. 103.0 103.1 103.2 103.3 103.4 "Phytosterol esters (Plant Sterol and Stanol Esters)". IFST. 1 November 2011. Retrieved 26 October 2021. 
  103. Ross, Robert; Neeland, Ian J.; Yamashita, Shizuya; Shai, Iris; Seidell, Jaap; Magni, Paolo; Santos, Raul D.; Arsenault, Benoit; Cuevas, Ada; Hu, Frank B.; Griffin, Bruce A.; Zambon, Alberto; Barter, Philip; Fruchart, Jean-Charles; Eckel, Robert H.; Matsuzawa, Yuji; Després, Jean-Pierre (March 2020). "Waist circumference as a vital sign in clinical practice: a Consensus Statement from the IAS and ICCR Working Group on Visceral Obesity". Nature Reviews Endocrinology. 16 (3): 177–189. ISSN 1759-5037. doi:10.1038/s41574-019-0310-7. 
  104. "Linolenic acid". pubchem.ncbi.nlm.nih.gov. Retrieved 29 October 2021. 
  105. Conner, Robert L. (11 October 1957). "Interaction of Stigmasterol and 2,4-Dinitrophenol in the Growth of Tetrahymena piriformis". Science. 126 (3276): 698–698. doi:10.1126/science.126.3276.698-a. 
  106. 107.0 107.1 107.2 Oteng, Antwi-Boasiako; Kersten, Sander (1 May 2020). "Mechanisms of Action of trans Fatty Acids". Advances in Nutrition. 11 (3): 697–708. doi:10.1093/advances/nmz125. 
  107. Ricciotti, Emanuela; FitzGerald, Garret A. (May 2011). "Prostaglandins and Inflammation". Arteriosclerosis, Thrombosis, and Vascular Biology. 31 (5): 986–1000. doi:10.1161/ATVBAHA.110.207449. 
  108. 109.0 109.1 109.2 Hegde, Mahabaleshwar V.; Zanwar, Anand Arvind; Adekar, Sharad P. (15 September 2016). Omega-3 Fatty Acids: Keys to Nutritional Health. [Cham]: Humana Press. ISBN 978-3-319-40458-5. 
  109. "Mead acid". pubchem.ncbi.nlm.nih.gov. Retrieved 7 November 2021. 
  110. "Mead acid: chemical structure, synthesis, and metabolism". Tuscany Diet. Retrieved 29 October 2021. 
  111. 112.0 112.1 112.2 Gómez Candela, C.; Bermejo López, L. M. ª; Loria Kohen, V. (April 2011). "Importancia del equilibrio del índice omega-6/omega-3 en el mantenimiento de un buen estado de salud: Recomendaciones nutricionales". Nutrición Hospitalaria. 26 (2): 323–329. ISSN 0212-1611. 
  112. "The Nobel Prize in Physiology or Medicine, 1964". =Nobel Prize, Nobel Media. 
  113. 114.0 114.1 114.2 Enig, Mary G. (1 January 2000). Know Your Fats: The Complete Primer for Understanding the Nutrition of Fats, Oils and Cholesterol. Bethesda Press. ISBN 978-0-9678126-0-1. 
  114. Hegsted, D. M.; Mcgandy, R. B.; Myers, M. L.; Stare, F. J. (1 November 1965). "Quantitative Effects of Dietary Fat on Serum Cholesterol in Man". The American Journal of Clinical Nutrition. 17 (5): 281–295. doi:10.1093/ajcn/17.5.281. 
  115. 116.0 116.1 Garti, Nissim; Sato, Kiyotaka (20 July 2001). Crystallization Processes in Fats and Lipid Systems. CRC Press. ISBN 978-1-4822-7088-4. 
  116. "Coronary heart disease in seven countries. Summary". Circulation. 41 (4 Suppl): I186–195. April 1970. ISSN 0009-7322. 
  117. Dam, P. B. van; Mittelmeijer, M. C.; Boelhouwer, C. (1 January 1972). "Metathesis of unsaturated fatty acid esters by a homogeneous tungsten hexachloride–tetramethyltin catalyst". Journal of the Chemical Society, Chemical Communications (22): 1221–1222. ISSN 0022-4936. doi:10.1039/C39720001221. 
  118. Van Dam, P. B.; Mittelmeijer, M. C.; Boelhouwer, C. (1 September 1974). "Homogeneous catalytic metathesis of unsaturated fatty esters: New synthetic method for preparation of unsaturated mono-and dicarboxylic acids". Journal of the American Oil Chemists Society. 51 (9): 389–392. ISSN 1558-9331. doi:10.1007/BF02635013. 
  119. 120.0 120.1 Hu FB, Stampfer MJ, Manson JE, Rimm E, Colditz GA, Rosner BA, et al. (November 1997). "Dietary fat intake and the risk of coronary heart disease in women". The New England Journal of Medicine. 337 (21): 1491–9. PMID 9366580. doi:10.1056/NEJM199711203372102. 
  120. Ahrens EH Jr (Jul 1976). "The management of hyperlipidemia: whether, rather than how". Ann Intern Med. 85 (1): 87–93. PMID 779574. doi:10.7326/0003-4819-85-1-87. 
  121. "How the U.S. Low-Fat Diet Recommendations of 1977 Contributed to the Declining Health of Americans". opencommons.uconn.edu. Retrieved 2 December 2021. 
  122. Dyerberg, J (July 1978). "EICOSAPENTAENOIC ACID AND PREVENTION OF THROMBOSIS AND ATHEROSCLEROSIS?". The Lancet. 312 (8081): 117–119. doi:10.1016/s0140-6736(78)91505-2. 
  123. 124.0 124.1 "Big fat controversy: changing opinions about saturated fats". www.aocs.org. Retrieved 22 October 2021. 
  124. Thomas, L H; Winter, J A; Scott, R G (1 March 1983). "Concentration of 18:1 and 16:1 transunsaturated fatty acids in the adipose body tissue of decedents dying of ischaemic heart disease compared with controls: analysis by gas liquid chromatography.". Journal of Epidemiology & Community Health. 37 (1): 16–21. doi:10.1136/jech.37.1.16. 
  125. Thomas, L H; Winter, J A; Scott, R G (1 March 1983). "Concentration of transunsaturated fatty acids in the adipose body tissue of decedents dying of ischaemic heart disease compared with controls.". Journal of Epidemiology & Community Health. 37 (1): 22–24. doi:10.1136/jech.37.1.22. 
  126. 127.0 127.1 127.2 Safeer, Richard S.; Ugalat, Prabha S. (1 March 2002). "Cholesterol Treatment Guidelines Update". American Family Physician. 65 (5): 871. ISSN 0002-838X. 
  127. 128.0 128.1 128.2 Penders, Bart; Vermeulen, Niki; Parker, John (3 March 2016). Collaboration across Health Research and Medical Care: Healthy Collaboration. Routledge. ISBN 978-1-317-16450-0. 
  128. Valentine, Raymond C.; Valentine, David L. (3 December 2009). Omega-3 Fatty Acids and the DHA Principle. CRC Press. ISBN 978-1-4398-1300-3. 
  129. "Report of the National Cholesterol Education Program Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults. The Expert Panel". Archives of Internal Medicine. 148 (1): 36–69. January 1988. PMID 3422148. doi:10.1001/archinte.148.1.36. 
  130. Fischer, Jnos; Ganellin, C. Robin (2006). Analogue-based Drug Discovery. John Wiley & Sons. p. 472. ISBN 9783527607495. 
  131. "Lovastatin / Cholesterol Topical Cream Compounded". www.cfspharmacy.pharmacy. Retrieved 30 October 2021. 
  132. Analogue-based drug discovery. Weinheim: Wiley-VCH. 2006. ISBN 9783527607495. 
  133. Keech, A.; Colquhoun, D.; Best, J.; Kirby, A.; Simes, R. J.; Hunt, D.; Hague, W.; Beller, E.; Arulchelvam, M.; Baker, J.; Tonkin, A. (1 October 2003). "Secondary Prevention of Cardiovascular Events With Long-Term Pravastatin in Patients With Diabetes or Impaired Fasting Glucose: Results from the LIPID trial". Diabetes Care. 26 (10): 2713–2721. doi:10.2337/diacare.26.10.2713. 
  134. Mensink, Ronald P.; Katan, Martijn B. (16 August 1990). "Effect of Dietary trans Fatty Acids on High-Density and Low-Density Lipoprotein Cholesterol Levels in Healthy Subjects". New England Journal of Medicine. 323 (7): 439–445. doi:10.1056/NEJM199008163230703. 
  135. Research, F. A. B. "FAB: International Society for the Study of Fatty Acids and Lipids". www.fabresearch.org. Retrieved 20 November 2021. 
  136. Plant Bioactives and Drug Discovery : Principles, Practice, and Perspectives. Hoboken, N.J.: John Wiley & Sons. 2012. ISBN 9780470582268. 
  137. "Simvastatin Monograph for Professionals - Drugs.com". web.archive.org. 10 January 2015. Retrieved 30 October 2021. 
  138. 139.0 139.1 139.2 "Ending the War on Fat". Time. Retrieved 3 December 2021. 
  139. Willett, W C; Ascherio, A (May 1994). "Trans fatty acids: are the effects only marginal?". American Journal of Public Health. 84 (5): 722–724. doi:10.2105/AJPH.84.5.722. 
  140. Analogue-based drug discovery. Weinheim: Wiley-VCH. 2006. ISBN 9783527607495. 
  141. Haramaki, Nobuya; Ikeda, Hisao; Takenaka, Katsuhiko; Katoh, Atsushi; Sugano, Ryo; Yamagishi, Sho-ichi; Matsuoka, Hidehiro; Imaizumi, Tsutomu (June 2007). "Fluvastatin Alters Platelet Aggregability in Patients With Hypercholesterolemia: Possible Improvement of Intraplatelet Redox Imbalance via HMG-CoA Reductase". Arteriosclerosis, Thrombosis, and Vascular Biology. 27 (6): 1471–1477. doi:10.1161/atvbaha.106.128793. 
  142. Gunstone, F. D. (30 June 1996). Fatty Acid and Lipid Chemistry. Springer. ISBN 978-0-8342-1342-5. 
  143. "Lipitor: How does this statin affect cholesterol levels?". www.medicalnewstoday.com. 25 February 2019. Retrieved 30 October 2021. 
  144. Mellanen, Pirkko; Petänen, Tiina; Lehtimäki, Jyrki; Mäkelä, Sari; Bylund, Göran; Holmbom, Bjarne; Mannila, Erkki; Oikari, Aimo; Santti, Risto (February 1996). "Wood-Derived Estrogens: Studiesin Vitrowith Breast Cancer Cell Lines andin Vivoin Trout". Toxicology and Applied Pharmacology. 136 (2): 381–388. doi:10.1006/taap.1996.0046. 
  145. Driskell, Judy A. (19 April 2007). Sports Nutrition: Fats and Proteins. CRC Press. ISBN 978-1-4200-0850-0. 
  146. Pond, Caroline M. (13 August 1998). The Fats of Life. Cambridge University Press. ISBN 978-0-521-63577-6. 
  147. Koletzko, Berthold; Lien, Eric; Agostoni, Carlo; Böhles, Hansjosef; Campoy, Cristina; Cetin, Irene; Decsi, Tamas; Dudenhausen, Joachim W.; Dupont, Cristophe; Forsyth, Stewart; Hoesli, Irene; Holzgreve, Wolfgang; Lapillonne, Alexandre; Putet, Guy; Secher, Niels J.; Symonds, Mike; Szajewska, Hania; Willatts, Peter; Uauy, Ricardo (1 January 2008). "The roles of long-chain polyunsaturated fatty acids in pregnancy, lactation and infancy: review of current knowledge and consensus recommendations". Journal of Perinatal Medicine. 36 (1). doi:10.1515/JPM.2008.001. 
  148. 149.0 149.1 149.2 Watson, Ronald Ross (25 June 2014). Omega-3 Fatty Acids in Brain and Neurological Health. Elsevier. ISBN 978-0-12-410547-8. 
  149. Industry as a Partner for Sustainable Development: Food and Drink. UNEP/Earthprint. 2002. ISBN 978-92-807-2185-0. 
  150. Hu FB, van Dam RM, Liu S (July 2001). "Diet and risk of Type II diabetes: the role of types of fat and carbohydrate". Diabetologia. 44 (7): 805–17. PMID 11508264. doi:10.1007/s001250100547. 
  151. Jeffrey, Brett G.; Weisinger, Harrison S.; Neuringer, Martha; Mitchell, Drake C. (2001). "The role of docosahexaenoic acid in retinal function". Lipids. 36 (9): 859–871. doi:10.1007/s11745-001-0796-3. 
  152. Hoffman, Dennis R.; Boettcher, Julia A.; Diersen-Schade, Deborah A. (1 August 2009). "Toward optimizing vision and cognition in term infants by dietary docosahexaenoic and arachidonic acid supplementation: A review of randomized controlled trials". Prostaglandins, Leukotrienes and Essential Fatty Acids. 81 (2): 151–158. doi:10.1016/j.plefa.2009.05.003. 
  153. Shim, Ki Shuk; Lubec, Gert (May 2002). "Drebrin, a dendritic spine protein, is manifold decreased in brains of patients with Alzheimer's disease and Down syndrome". Neuroscience Letters. 324 (3): 209–212. doi:10.1016/s0304-3940(02)00210-0. 
  154. Canada, Health (26 March 2012). "Summary of Health Canada's Assessment of a Health Claim about the Replacement of Saturated Fat with Mono- and Polyunsaturated Fat and Blood Cholesterol Lowering". www.canada.ca. Retrieved 27 October 2021. 
  155. Joint WHO/FAO Expert Consultation (2003). Diet, Nutrition and the Prevention of Chronic Diseases (WHO technical report series 916) (PDF). World Health Organization. pp. 81–94. ISBN 978-92-4-120916-8. 
  156. Boyd NF, Stone J, Vogt KN, Connelly BS, Martin LJ, Minkin S (November 2003). "Dietary fat and breast cancer risk revisited: a meta-analysis of the published literature". British Journal of Cancer. 89 (9): 1672–1685. PMC 2394401Freely accessible. PMID 14583769. doi:10.1038/sj.bjc.6601314. 
  157. Gatto LM, Sullivan DR, Samman S (May 2003). "Postprandial effects of dietary trans fatty acids on apolipoprotein(a) and cholesteryl ester transfer". The American Journal of Clinical Nutrition. 77 (5): 1119–24. PMID 12716661. doi:10.1093/ajcn/77.5.1119. 
  158. Morris MC, Evans DA, Bienias JL, Tangney CC, Bennett DA, Aggarwal N, et al. (February 2003). "Dietary fats and the risk of incident Alzheimer disease". Archives of Neurology. 60 (2): 194–200. PMID 12580703. doi:10.1001/archneur.60.2.194. 
  159. "Denmark, trans fat ban pioneer: lessons for other countries". www.who.int. Retrieved 5 October 2021. 
  160. Analogue-based drug discovery. Weinheim: Wiley-VCH. 2006. ISBN 9783527607495. 
  161. Adams, Stephen P; Alaeiilkhchi, Nima; Wright, James M (19 June 2020). "Pitavastatin for lowering lipids". Cochrane Database of Systematic Reviews. 2020 (7). doi:10.1002/14651858.CD012735.pub2. 
  162. Simons, J (20 January 2003). "The $10 billion pill.". Fortune. 147 (1): 58–62, 66, 68. PMID 12602122. 
  163. German JB, Dillard CJ (September 2004). "Saturated fats: what dietary intake?". American Journal of Clinical Nutrition. 80 (3): 550–559. PMID 15321792. doi:10.1093/ajcn/80.3.550Freely accessible. 
  164. "Opinion of the Scientific Panel on Dietetic products, nutrition and allergies [NDA] related to the presence of trans fatty acids in foods and the effect on human health of the consumption of trans fatty acids | EFSA". www.efsa.europa.eu. Retrieved 12 October 2021. 
  165. Gunstone, F. D. (2004). The Chemistry of Oils and Fats: Sources, Composition, Properties, and Uses. Blackwell Pub. ISBN 978-0-8493-2373-7. 
  166. "What's in that french fry? Fat varies by city". NBC News. 12 April 2006. Retrieved 7 January 2007.  AP story concerning Stender, S; Dyerberg, J; Astrup, A (April 2006). "High levels of industrially produced trans fat in popular fast foods". N. Engl. J. Med. 354 (15): 1650–2. PMID 16611965. doi:10.1056/NEJMc052959. 
  167. Högström, Magnus; Nordström, Peter; Nordström, Anna (1 March 2007). "n−3 Fatty acids are positively associated with peak bone mineral density and bone accrual in healthy men: the NO2 Study". The American Journal of Clinical Nutrition. 85 (3): 803–807. doi:10.1093/ajcn/85.3.803. 
  168. Weiss, Lauren A; Barrett-Connor, Elizabeth; von Mühlen, Denise (1 April 2005). "Ratio of n–6 to n–3 fatty acids and bone mineral density in older adults: the Rancho Bernardo Study". The American Journal of Clinical Nutrition. 81 (4): 934–938. doi:10.1093/ajcn/81.4.934. 
  169. "301. Mono- and diglycerides (WHO Food Additives Series 5)". inchem.org. Retrieved 13 October 2021. 
  170. Corwin, Rebecca L.; Hartman, Terryl J.; Maczuga, Steven A.; Graubard, Barry I. (1 January 2006). "Dietary Saturated Fat Intake Is Inversely Associated with Bone Density in Humans: Analysis of NHANES III1". The Journal of Nutrition. 136 (1): 159–165. doi:10.1093/jn/136.1.159. 
  171. "A.N.M.A.T." (PDF). www.anmat.gov.ar. Retrieved 12 October 2021. 
  172. Tarrago-Trani MT, Phillips KM, Lemar LE, Holden JM (June 2006). "New and existing oils and fats used in products with reduced trans-fatty acid content". Journal of the American Dietetic Association. 106 (6): 867–80. PMID 16720128. doi:10.1016/j.jada.2006.03.010. 
  173. Mozaffarian, Dariush; Katan, Martijn B.; Ascherio, Alberto; Stampfer, Meir J.; Willett, Walter C. (13 April 2006). "Trans fatty acids and cardiovascular disease". The New England Journal of Medicine. 354 (15): 1601–1613. ISSN 1533-4406. doi:10.1056/NEJMra054035. 
  174. Sundram K, Karupaiah T, Hayes K (2007). "Stearic acid-rich interesterified fat and trans-rich fat raise the LDL/HDL ratio and plasma glucose relative to palm olein in humans" (PDF). Nutr Metab. 4: 3. PMC 1783656Freely accessible. PMID 17224066. doi:10.1186/1743-7075-4-3. 
  175. Destaillats, Frédéric; Moulin, Julie; Bezelgues, Jean-Baptiste (2007). "Letter to the editor: healthy alternatives to trans fats". Nutrition & Metabolism. 4 (1): 10. doi:10.1186/1743-7075-4-10. 
  176. Mensink, Ronald P; Zock, Peter L; Kester, Arnold DM; Katan, Martijn B (1 May 2003). "Effects of dietary fatty acids and carbohydrates on the ratio of serum total to HDL cholesterol and on serum lipids and apolipoproteins: a meta-analysis of 60 controlled trials". The American Journal of Clinical Nutrition. 77 (5): 1146–1155. doi:10.1093/ajcn/77.5.1146. 
  177. Bradford, Peter G.; Awad, Atif B. (February 2007). "Phytosterols as anticancer compounds". Molecular Nutrition & Food Research. 51 (2): 161–170. doi:10.1002/mnfr.200600164. 
  178. Chavarro JE, Rich-Edwards JW, Rosner BA, Willett WC (January 2007). "Dietary fatty acid intakes and the risk of ovulatory infertility". The American Journal of Clinical Nutrition. 85 (1): 231–7. PMID 17209201. doi:10.1093/ajcn/85.1.231Freely accessible. 
  179. Eckel RH, Kris-Etherton P, Lichtenstein AH, Wylie-Rosett J, Groom A, Stitzel KF, Yin-Piazza S (February 2009). "Americans' awareness, knowledge, and behaviors regarding fats: 2006-2007". Journal of the American Dietetic Association. 109 (2): 288–96. PMID 19167956. doi:10.1016/j.jada.2008.10.048. 
  180. Schwingshackl, L.; Strasser, B.; Hoffmann, G. (2011). "Effects of Monounsaturated Fatty Acids on Glycaemic Control in Patients with Abnormal Glucose Metabolism: A Systematic Review and Meta-Analysis". Annals of Nutrition and Metabolism. 58 (4): 290–296. doi:10.1159/000331214. 
  181. Scherer, Lauri S. (28 December 2012). Artificial Ingredients. Greenhaven Publishing LLC. ISBN 978-0-7377-6284-6. 
  182. Sardesai, Vishwanath (11 October 2011). Introduction to Clinical Nutrition, Third Edition. CRC Press. ISBN 978-1-4398-1818-3. 
  183. "The Truth About Purified Omega 7, Sea Buckthorn, & Palmitic Acid". Sibu Seaberry. Retrieved 28 October 2021. 
  184. "Omega-7: The New 'Healthy Fat'? - Heart Health Center - Everyday Health". EverydayHealth.com. Retrieved 28 October 2021. 
  185. Gunstone, F. D. (2008). Oils and fats in the food industry. Oxford: Wiley-Blackwell Pub. ISBN 9781405171212. 
  186. Simopoulos, Artemis P. (2008). "Omega–6/Omega–3 Essential Fatty Acids: Biological Effects". World Review of Nutrition and Dietetics. 99: 1–16. doi:10.1159/000192755. 
  187. Zelman, Kathleen (May 2011). "The Great Fat Debate: A Closer Look at the Controversy—Questioning the Validity of Age-Old Dietary Guidance". Journal of the American Dietetic Association. 111 (5): 655–658. doi:10.1016/j.jada.2011.03.026. 
  188. Mozaffarian, D.; Stampfer, M. J. (15 April 2010). "Removing industrial trans fat from foods". BMJ. 340 (apr15 1): c1826–c1826. doi:10.1136/bmj.c1826. 
  189. "Revealing Trans Fats". web.archive.org. 11 March 2010. Retrieved 13 October 2021. 
  190. Miller, Michael; Stone, Neil J.; Ballantyne, Christie; Bittner, Vera; Criqui, Michael H.; Ginsberg, Henry N.; Goldberg, Anne Carol; Howard, William James; Jacobson, Marc S.; Kris-Etherton, Penny M.; Lennie, Terry A.; Levi, Moshe; Mazzone, Theodore; Pennathur, Subramanian (24 May 2011). "Triglycerides and Cardiovascular Disease: A Scientific Statement From the American Heart Association". Circulation. 123 (20): 2292–2333. doi:10.1161/CIR.0b013e3182160726. 
  191. "Can High Triglycerides Increase Your Risk of Stroke?". Verywell Health. Retrieved 26 October 2021. 
  192. Franklin, Barry A.; Cushman, Mary (24 May 2011). "Recent Advances in Preventive Cardiology and Lifestyle Medicine". Circulation. 123 (20): 2274–2283. doi:10.1161/CIRCULATIONAHA.110.981613. 
  193. Conseil Supérieur de la Santé, ed. (July 2012). "acides gras trans d'origine industrielle" (PDF). Avis du Conseil Supérieur de la Santé N° 8666. Retrieved 12 October 2021. 
  194. Golomb BA, Evans MA, White HL, Dimsdale JE (2012). "Trans fat consumption and aggression". PLOS ONE. 7 (3): e32175. PMC 3293881Freely accessible. PMID 22403632. doi:10.1371/journal.pone.0032175. 
  195. "Is Butter Really Back?". Harvard Public Health Magazine. 10 August 2016. Retrieved 2 December 2021. 
  196. Chowdhury, Rajiv; Warnakula, Samantha; Kunutsor, Setor; Crowe, Francesca; Ward, Heather A.; Johnson, Laura; Franco, Oscar H.; Butterworth, Adam S.; Forouhi, Nita G.; Thompson, Simon G.; Khaw, Kay-Tee; Mozaffarian, Dariush; Danesh, John; Di Angelantonio, Emanuele (18 March 2014). "Association of dietary, circulating, and supplement fatty acids with coronary risk: a systematic review and meta-analysis". Annals of Internal Medicine. 160 (6): 398–406. ISSN 1539-3704. doi:10.7326/M13-1788. 
  197. Bittman, Mark (25 March 2014). "Opinion | Butter Is Back". The New York Times. Retrieved 2 December 2021. 
  198. "נכנסה לתוקף בישראל חובת סימון שומן טראנס על גבי אריזות מזון ארוז". health.gov.il. 
  199. "Regulation (EU) No 1169/2011 of the European Parliament and of the Council", Official Journal of the European Union, 2011-11-21 
  200. Goldman, T. R. (31 March 2016). "Health Policy Brief: Final 2015-20 Dietary Guidelines for Americans". Health Affairs. doi:10.1377/hpb20160331.683121. Retrieved 7 June 2021. 
  201. Soliman, Ghada (16 June 2018). "Dietary Cholesterol and the Lack of Evidence in Cardiovascular Disease". Nutrients. 10 (6): 780. doi:10.3390/nu10060780. 
  202. 203.0 203.1 "Hydrogenated oil: What is it? Is it bad? Learn more here". www.medicalnewstoday.com. 26 February 2021. Retrieved 27 October 2021. 
  203. Hooper, Lee; Martin, Nicole; Abdelhamid, Asmaa; Davey Smith, George (10 June 2015). "Reduction in saturated fat intake for cardiovascular disease". The Cochrane Database of Systematic Reviews (6): CD011737. ISSN 1469-493X. doi:10.1002/14651858.CD011737. 
  204. Ramsden, Christopher E.; Zamora, Daisy; Majchrzak-Hong, Sharon; Faurot, Keturah R.; Broste, Steven K.; Frantz, Robert P.; Davis, John M.; Ringel, Amit; Suchindran, Chirayath M.; Hibbeln, Joseph R. (12 April 2016). "Re-evaluation of the traditional diet-heart hypothesis: analysis of recovered data from Minnesota Coronary Experiment (1968-73)". BMJ. 353: i1246. ISSN 1756-1833. doi:10.1136/bmj.i1246. 
  205. Melnik, Bodo (July 2015). "Linking diet to acne metabolomics, inflammation, and comedogenesis: an update". Clinical, Cosmetic and Investigational Dermatology: 371. doi:10.2147/CCID.S69135. 
  206. Golomb, Beatrice Alexandra; Bui, Alexis K. (17 June 2015). "A Fat to Forget: Trans Fat Consumption and Memory". PLOS ONE. 10 (6): e0128129. doi:10.1371/journal.pone.0128129. 
  207. Tobias, Deirdre K.; Chen, Mu; Manson, JoAnn E.; Ludwig, David S.; Willett, Walter; Hu, Frank B. (December 2015). "Effect of low-fat diet interventions versus other diet interventions on long-term weight change in adults: a systematic review and meta-analysis". The Lancet. Diabetes & Endocrinology. 3 (12): 968–979. ISSN 2213-8595. doi:10.1016/S2213-8587(15)00367-8. 
  208. Phillipov, Michelle (15 May 2016). Fats: A Global History. Reaktion Books. ISBN 978-1-78023-575-2. 
  209. Sacks, Frank M.; Lichtenstein, Alice H.; Wu, Jason H.Y.; Appel, Lawrence J.; Creager, Mark A.; Kris-Etherton, Penny M.; Miller, Michael; Rimm, Eric B.; Rudel, Lawrence L.; Robinson, Jennifer G.; Stone, Neil J.; Van Horn, Linda V. (18 July 2017). "Dietary Fats and Cardiovascular Disease: A Presidential Advisory From the American Heart Association". Circulation. 136 (3). doi:10.1161/CIR.0000000000000510. 
  210. "Health Canada trans fat ban takes effect next year". cbc.ca. Retrieved 12 October 2021. 
  211. "WHO plan to eliminate industrially-produced trans-fatty acids from global food supply". www.who.int. Retrieved 6 October 2021. 
  212. Patel, Vinood B. (29 October 2018). The Molecular Nutrition of Fats. Academic Press. ISBN 978-0-12-811298-4. 
  213. Choo, Felicia (6 March 2019). "MOH to ban artificial trans fat in cookies and noodles". The Straits Times. Retrieved 12 October 2021. 
  214. الربيعة, توفيق. "عد ١٣ شهراً (في ١-١-٢٠٢٠) سوف يتم منع الزيوت المهدرجة من جميع الأغذية نظراً لأضرارها الصحية". Twitter. Retrieved 12 October 2021. 
  215. Lascu, Dana. "Legea care face mâncarea românilor mai SĂNĂTOASĂ. Adrian Wiener: Nu interzice alimente! Oprește un ABUZ criminal URIAȘ!". www.dcmedical.ro (in română). Retrieved 15 October 2021. 
  216. "Lege cu impact major în industria alimentară și fast-food, promulgată de președinte. Producătorii, obligați să limiteze acizii grași". www.digi24.ro (in română). Retrieved 15 October 2021. 
  217. Easter, Michael (20 January 2021). "Inside the Knockdown, Drag-Out War on Saturated Fat". Men's Health. Retrieved 2 December 2021. 
  218. "The debate over saturated fats rages on". News. 22 January 2021. Retrieved 2 December 2021. 
  219. Kim, Youngyo; Je, Youjin; Giovannucci, Edward L. (March 2021). "Association between dietary fat intake and mortality from all-causes, cardiovascular disease, and cancer: A systematic review and meta-analysis of prospective cohort studies". Clinical Nutrition. 40 (3): 1060–1070. doi:10.1016/j.clnu.2020.07.007. 
  220. "Trans fat in food". ec.europa.eu. Retrieved 13 October 2021. 
  221. Steur, Marinka; Johnson, Laura; Sharp, Stephen J.; Imamura, Fumiaki; Sluijs, Ivonne; Key, Timothy J.; Wood, Angela; Chowdhury, Rajiv; Guevara, Marcela; Jakobsen, Marianne U.; Johansson, Ingegerd; Koulman, Albert; Overvad, Kim; Sánchez, Maria‐José; van der Schouw, Yvonne T.; Trichopoulou, Antonia; Weiderpass, Elisabete; Wennberg, Maria; Zheng, Ju‐Sheng; Boeing, Heiner; Boer, Jolanda M. A.; Boutron‐Ruault, Marie‐Christine; Ericson, Ulrika; Heath, Alicia K.; Huybrechts, Inge; Imaz, Liher; Kaaks, Rudolf; Krogh, Vittorio; Kühn, Tilman; Kyrø, Cecilie; Masala, Giovanna; Melander, Olle; Moreno‐Iribas, Conchi; Panico, Salvatore; Quirós, José R.; Rodríguez‐Barranco, Miguel; Sacerdote, Carlotta; Santiuste, Carmen; Skeie, Guri; Tjønneland, Anne; Tumino, Rosario; Verschuren, W. M. Monique; Zamora‐Ros, Raul; Dahm, Christina C.; Perez‐Cornago, Aurora; Schulze, Matthias B.; Tong, Tammy Y. N.; Riboli, Elio; Wareham, Nicholas J.; Danesh, John; Butterworth, Adam S.; Forouhi, Nita G. "Dietary Fatty Acids, Macronutrient Substitutions, Food Sources and Incidence of Coronary Heart Disease: Findings From the EPIC‐CVD Case‐Cohort Study Across Nine European Countries". Journal of the American Heart Association. 0 (0): e019814. doi:10.1161/JAHA.120.019814. 
  222. "Polyunsaturated Fatty Acids Market Share, Size and Industry Growth Analysis 2020 - 2025". www.industryarc.com. Retrieved 11 November 2021. 
  223. "Fat". Google Trends. Retrieved 6 October 2021. 
  224. "trans fat, saturated fat, fatty acid, triglyceride". books.google.com. Retrieved 6 October 2021. 
  225. "Fat". wikipediaviews.org. Retrieved 6 October 2021.