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| 1870 || General || {{w|Micronutrient}} ({{w|vitamin}}) || Scientific development || {{w|Niacin}} chemical structure is first described. The vitamin is also first synthesized.<ref name="Semba"/> ||
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| 1874 || {{w|Undernutrition}} || Medical development || {{w|Anorexia nervosa}} is first documented medically.<ref>{{cite book |title=Sport and Exercise Psychology: The Key Concepts |edition=Ellis Cashmore |url=https://books.google.com.ar/books?id=lOyCAgAAQBAJ&pg=PA93&lpg=PA93&dq=%22anorexia+was+first%22&source=bl&ots=E9KlAB7N9x&sig=ACfU3U3rIuSF9vvaMW2gJ7YOje9QCUOGDQ&hl=en&sa=X&ved=2ahUKEwjk-Z-smI7pAhV-JLkGHSPyC-wQ6AEwAnoECAoQAQ#v=onepage&q=%22anorexia%20was%20first%22&f=false}}</ref> ||
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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"/> ||
