Hormones and diet: low insulin-like growth factor-I but normal bioavailable androgens in vegan men

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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. © 2000 Cancer Research Campaign


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  • diet
  • insulin-like growth factor-I
  • sex hormones
  • vegan
  • meat-eaters

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