title: Twentieth-century trends in essential fatty acid intakes and the predicted omega-3 index: evidence versus estimates.
authors.forename: William S
authors.initials: WS
authors.lastname: Harris
authors.forename: David M
authors.initials: DM
authors.lastname: Klurfeld
mesh_terms: D016208:Databases, Factual; D004032:Diet / Q000191:economics / Q000266:history / Q000639:trends*; D005228:Fatty Acids, Essential / Q000008:administration & dosage* / Q000032:analysis / Q000378:metabolism; D015525:Fatty Acids, Omega-3 / Q000008:administration & dosage / Q000032:analysis / Q000378:metabolism*; D005260:Female; D005504:Food Analysis; D005523:Food Supply / Q000266:history; D049673:History, 20th Century; D006801:Humans; D008297:Male; D009749:Nutrition Surveys; D009752:Nutritional Status; D015203:Reproducibility of Results; D014481:United States
chemical_list: D005228:Fatty Acids, Essential; D015525:Fatty Acids, Omega-3