title: Origins and evolution of the Western diet: health implications for the 21st century.
abstract: There is growing awareness that the profound changes in the environment (eg, in diet and other lifestyle conditions) that began with the introduction of agriculture and animal husbandry approximately 10000 y ago occurred too recently on an evolutionary time scale for the human genome to adjust. In conjunction with this discordance between our ancient, genetically determined biology and the nutritional, cultural, and activity patterns of contemporary Western populations, many of the so-called diseases of civilization have emerged. In particular, food staples and food-processing procedures introduced during the Neolithic and Industrial Periods have fundamentally altered 7 crucial nutritional characteristics of ancestral hominin diets: 1) glycemic load, 2) fatty acid composition, 3) macronutrient composition, 4) micronutrient density, 5) acid-base balance, 6) sodium-potassium ratio, and 7) fiber content. The evolutionary collision of our ancient genome with the nutritional qualities of recently introduced foods may underlie many of the chronic diseases of Western civilization.
authors.affiliation: Department of Health and Exercise Science, Colorado State University, Fort Collins, CO 80523, USA. cordain@cahs.colostate.edu
authors.forename: Loren
authors.initials: L
authors.lastname: Cordain
authors.forename: S Boyd
authors.initials: SB
authors.lastname: Eaton
authors.forename: Anthony
authors.initials: A
authors.lastname: Sebastian
authors.forename: Neil
authors.initials: N
authors.lastname: Mann
authors.forename: Staffan
authors.initials: S
authors.lastname: Lindeberg
authors.forename: Bruce A
authors.initials: BA
authors.lastname: Watkins
authors.forename: James H
authors.initials: JH
authors.lastname: O'Keefe
authors.forename: Janette
authors.initials: J
authors.lastname: Brand-Miller
mesh_terms: D000136:Acid-Base Equilibrium; D000383:Agriculture / Q000379:methods*; D005075:Biological Evolution; D002908:Chronic Disease / Q000453:epidemiology; D004032:Diet / Q000639:trends*; D004043:Dietary Fiber / Q000008:administration & dosage; D005227:Fatty Acids / Q000008:administration & dosage / Q000032:analysis; D005504:Food Analysis; D005511:Food Handling / Q000379:methods; D038321:Glycemic Index; D006801:Humans; D017419:Potassium, Dietary / Q000008:administration & dosage; D012982:Sodium, Dietary / Q000008:administration & dosage; D014481:United States
chemical_list: D004043:Dietary Fiber; D005227:Fatty Acids; D017419:Potassium, Dietary; D012982:Sodium, Dietary