Myboobs,
This one is for you sweet cheeks,
Globulin, calculated free testosterone, and oestradiol in male vegans and omnivores.
Abstract
Total testosterone (T), total oestradiol (E2) and sex hormone-binding globulin (SHBG) concentrations were measured in plasma samples from fifty-one male vegans and fifty-seven omnivores of similar age. Free T concentration was estimated by calculation. In comparison with the omnivores, the vegans had 7% higher total T (P = 0.250), 23% higher SHBG (P = 0.001), 3% lower free T (P = 0.580), and 11% higher E2 (P = 0.194). In a subset of eighteen vegans and twenty-two omnivores for whom 4 d diet records were available, there were statistically significant correlations between T and polyunsaturated fatty acids (r 0.37), SHBG and fat (r 0.43 for total fat, 0.46 for saturated fatty acids and 0.33 for polyunsaturated fatty acids), and SHBG and alcohol (r-0.39). It is concluded that a vegan diet causes a substantial increase in SHBG but has little effect on total or free T or on E2.
http://www.ncbi.nlm.nih.gov/pubmed/2400756
My interpretation, a vegan diet may not produce enough free (bioactive) hormones to interact with the receptors. This could explain why you haven't experienced the optimal growth spurt yet. That doesn't mean all hope is lost, just a slight nudge to get more activation of the free state.
This one is for you sweet cheeks,
Globulin, calculated free testosterone, and oestradiol in male vegans and omnivores.
Abstract
Total testosterone (T), total oestradiol (E2) and sex hormone-binding globulin (SHBG) concentrations were measured in plasma samples from fifty-one male vegans and fifty-seven omnivores of similar age. Free T concentration was estimated by calculation. In comparison with the omnivores, the vegans had 7% higher total T (P = 0.250), 23% higher SHBG (P = 0.001), 3% lower free T (P = 0.580), and 11% higher E2 (P = 0.194). In a subset of eighteen vegans and twenty-two omnivores for whom 4 d diet records were available, there were statistically significant correlations between T and polyunsaturated fatty acids (r 0.37), SHBG and fat (r 0.43 for total fat, 0.46 for saturated fatty acids and 0.33 for polyunsaturated fatty acids), and SHBG and alcohol (r-0.39). It is concluded that a vegan diet causes a substantial increase in SHBG but has little effect on total or free T or on E2.
http://www.ncbi.nlm.nih.gov/pubmed/2400756
My interpretation, a vegan diet may not produce enough free (bioactive) hormones to interact with the receptors. This could explain why you haven't experienced the optimal growth spurt yet. That doesn't mean all hope is lost, just a slight nudge to get more activation of the free state.
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