You probably know that vitamin D plays a role in the health of your bones and your immune system, along with reducing the risk of heart disease, cancer, diabetes, and multiple sclerosis.
You might also know that low levels of it are associated with lower testosterone levels and that women with less than adequate amounts of vitamin D have lower sex drives.
What you might not know, though, is that an impressive number of studies have shown that people who have a high amount of the vitamin in their bloodstream have less fat, more muscle, and more strength.