Testosterone
Hormone Regulation

Testosterone

Testosterone is the main male sex hormone. It is responsible for regulating fertility, muscle mass, fat distribution and the production of red blood cells. Women’s ovaries also produce testosterone, although in much smaller quantities.

Table of relations

Nutraceutical
Consistent effects
Strength of effects
Scientific articles
Notes
There appears to be a rise in testosterone following DHEA supplementation, but the overwhelming majority of literature is in menopausal women (where testosterone contributes to libido). there's variability within the results, and DHEA is unreliable in increasing testosterone, but this unreliability extends to all or any demographics and subjects (with limited evidence of DHEA increasing testosterone altogether studies including youthful athletes, which are less studied).
An increase in testosterone has been noted in men with 3,332 IU of vitamin D over the course of a year.
Both chronic/excessive exercise also as a deficiency disease are related to abnormally low testosterone concentrations, and in these states supplementation of zinc increases testosterone. there's no inherent increase in testosterone with zinc if either of these two conditions aren't met.