Magnesium is the fourth most abundant cation in the body. It is an essential mineral and cofactor in over 600 chemical reactions in the body. Unfortunately, many people do not get enough magnesium in their diets. As such, supplementing with magnesium can be a good idea for many. However, not all magnesium is absorbed very well. Revive magnesium glycinate provides 200 mg of high-quality elemental magnesium. Magnesium glycinate is well-tolerated and easily absorbed by your body. This magnesium supplement gives your body what it needs to maintain strong bones, a healthy nervous system, stress management, a state of calm and well-being and a healthy heart. The RDA for elemental magnesium is 400 mg for an adult. 4 capsules of Revive’s magnesium glycinate would yield 400 mg of elemental magnesium.