Hormones and diet: low insulin-like growth factor-I but normal bioavailable androgens in vegan men
2000
Hormones and Diet in Vegan Men
Sample size: 696
publication
Evidence: moderate
Author Information
Author(s): Allen N E, Appleby P N, Davey G K, Key T J
Primary Institution: Cancer Epidemiology Unit, Imperial Cancer Research Fund
Hypothesis
Do vegan men have different hormone levels compared to meat-eaters and vegetarians?
Conclusion
Vegan men have lower insulin-like growth factor-I levels but higher testosterone levels compared to vegetarians and meat-eaters.
Supporting Evidence
- Mean serum insulin-like growth factor-I was 9% lower in vegan men than in meat-eaters and vegetarians.
- Vegans had higher testosterone levels than vegetarians and meat-eaters.
Takeaway
This study found that vegan men have lower levels of a certain hormone but higher testosterone compared to those who eat meat or are vegetarians.
Methodology
Comparison of hormone levels among vegan men, meat-eaters, and vegetarians.
Participant Demographics
233 vegan men, 226 meat-eaters, and 237 vegetarians.
Statistical Information
P-Value
0.002
Statistical Significance
p=0.002
Digital Object Identifier (DOI)
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