Vitamin D Levels Linked to Testosterone in Men
A recent study conducted by a team from Harvard University has shown an association between increased vitamin D intake by way of D3 supplements and substantial increases in testosterone levels in men. The study was published in the Journal of Clinical Endocrinology.
One of the most interesting things to note about the study, about which more information can be found here, is that many if not most of the high-priced medicines and various nutritional supplements which are indicated for increasing testosterone levels in men may not be needed after all in order for their respective target audiences to achieve the desired result.
If vitamin D3 supplements can increase testosterone levels safely and naturally and by a substantial margin at that, there is little-to-no need for men to go out and spend hundreds of dollars on expensive supplements, doctors visits and various medications when a $8-$20 bottle of quality vitamin D3 supplements is all that is needed to accomplish the stated goal of boosting testosterone levels in men who suffer from low testosterone.
The study was careful to note that more research is needed in order to determine causality. What is meant by that is that whether low vitamin D leads to low testosterone or whether vitamin D straight-up boosts testosterone levels is not yet known, and that which causes the resulting effect is unknown as of this time.
That said, the causality argument is irrelevant to men suffering from low testosterone. Ample evidence exists to suggest that one safe and natural way to reverse the problem is to get out in the sun and start taking some high-quality vitamin D3 supplements in order to boost blood-levels of vitamin D. This should be sufficient to improve testosterone levels, at least according to the existing research.