title: Hormones and diet: low insulin-like growth factor-I but normal bioavailable androgens in vegan men.
abstract: Mean serum insulin-like growth factor-I was 9% lower in 233 vegan men than in 226 meat-eaters and 237 vegetarians (P = 0.002). Vegans had higher testosterone levels than vegetarians and meat-eaters, but this was offset by higher sex hormone binding globulin, and there were no differences between diet groups in free testosterone, androstanediol glucuronide or luteinizing hormone.
authors.affiliation: Cancer Epidemiology Unit, Imperial Cancer Research Fund, Radcliffe Infirmary, Oxford, UK.
authors.forename: N E
authors.initials: NE
authors.lastname: Allen
authors.forename: P N
authors.initials: PN
authors.lastname: Appleby
authors.forename: G K
authors.initials: GK
authors.lastname: Davey
authors.forename: T J
authors.initials: TJ
authors.lastname: Key
mesh_terms: D000328:Adult; D000728:Androgens / Q000097:blood*; D015113:Androstane-3,17-diol / Q000031:analogs & derivatives / Q000032:analysis; D000886:Anthropometry; D015415:Biomarkers; D003430:Cross-Sectional Studies; D004032:Diet; D014676:Diet, Vegetarian; D004739:England / Q000453:epidemiology; D006801:Humans; D007334:Insulin-Like Growth Factor I / Q000032:analysis*; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D008460:Meat; D011471:Prostatic Neoplasms / Q000453:epidemiology; D012307:Risk Factors; D012738:Sex Hormone-Binding Globulin / Q000032:analysis; D013739:Testosterone / Q000097:blood
chemical_list: D000728:Androgens; D015415:Biomarkers; D012738:Sex Hormone-Binding Globulin; D015113:Androstane-3,17-diol; C028895:androstane-3,17-diol glucuronide; D013739:Testosterone; D007334:Insulin-Like Growth Factor I; D007986:Luteinizing Hormone