The market is booming with “natural” testosterone boosters, but don’t believe the hype. Men with metastatic prostate cancer, untreated sleep apnea or severe urinary problems should not have testosterone therapy.
A decline in testosterone levels with progressing age is a normal phenomenon that men experience. Moreover, some “drugs or supplements” may also lead to lower testosterone levels. Taking testosterone boosters in recommended dosages help in bringing the levels within the normal range, which is beneficial for the reproductive processes as well as muscle building. So if you can't get your vit D from exposure to the sun, consider the benefits of supplements.