Vegan Men Have 13% Higher Testosterone Levels!
It is true that vegan men have 13% HIGHER testosterone levels than meat eaters and 8% higher than vegetarian men.
In this Study: Hormones and diet: low insulin-like growth factor-I but normal bioavailable androgens in vegan men (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2374537/pdf/83-6691152a.pdf)
They include 696 men of whom 226 were meat-eaters, 237 were vegetarians and 233 were vegans, recruited between 1994 and 1997 that had given blood samples.
According to the study, those samples indicated that:
All mean hormone concentrations are adjusted for age, smoking status, vigorous exercise, time of day of venipuncture, time since last eaten at venipuncture and time between venipuncture and blood processing. Mean hormone concentrations are presented with and without adjustment for BMI (Table 2). Vegan men had on average 9% lower IGF-I levels than meat-eaters (P< 0.01) and 8% lower levels than vegetarians (P< 0.01); adjustment for BMI made little difference to these values. Prior to adjustment for BMI, SHBG levels in vegans were 16% higher than in meat-eaters (P<0.0001), and 12% higher than in vegetarians (P= 0.0008); adjustment for BMI reduced these differences to 6% (P= 0.02) and 10% (P= 0.004), respectively. Vegans had 13% higher testosterone concentration than meat-eaters (P= 0.0001)…