“Magnesium is such a crucial mineral for so many mechanisms in our body,” Bindiya Gandhi, M.D., a functional and integrative doctor, tells mindbodygreen. “It is involved in over 300 enzymatic reactions in the body including1 nerve function, DNA synthesis, bone health, and more.” Not only that, but magnesium is also used to help stabilize blood sugar levels, regulate muscle contractions, and even keep your heart healthy.