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| 1875 || {{w|Undernutrition}} || {{w|Micronutrient}} ({{w|vitamin deficiency}}) || Medical development || Pepper reports bone marrow abnormalities in pernicious anemia patients.<ref name="Mineral Nutrition History"/> ||
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| 1906 || {{w|Undernutrition}} || {{w|Macronutrient}} (calory) || Medical development || The term 'starchy food dystrophy' is used by Czerny and Keller for what is now commonly known as {{w|marasmus}}.<ref name="shodhganga.inflibnet.ac.in"/> ||
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| 1907 || {{w|Undernutrition}} || {{w|Micronutrient}} ({{w|vitamin deficiency}}) || Scientific development || Axel Holst and Theodor Frölich develop the guinea pig model for {{w|scurvy}}, which represents a major step toward the understanding of {{w|vitamin C}}.<ref name="Semba">{{cite journal |last1=Semba |first1=Richard D. |title=The Historical Evolution of Thought Regarding Multiple Micronutrient Nutrition |doi=10.3945/jn.110.137745|url=https://academic.oup.com/jn/article/142/1/143S/4630750}}</ref> ||
