You could have learned this as I did, by cranking
Post# of 123676
Now, IF ONLY D3 supplementation could boost IQ levels, and IF posters like you would take them, then maybe the content of Trumpanzee posts would improve. Let us know.
Does supplementation with vitamin D boost testosterone?
https://blog.insidetracker.com/can-vitamin-d-...one-levels
In a 2011 randomized controlled study, researchers found men who were given a daily high-dose vitamin D supplement significantly increased their total testosterone from 10.7 nmol/L to 13.4 nmol/L, whereas there were hardly any changes in testosterone concentrations in the group given a placebo.19
These findings suggest that men deficient in vitamin D who take a proper vitamin D supplement may fix low levels of low testosterone.