Dietary supplement. Promotes optimal muscle, nerve and bone health. Magnesium is an essential electrolyte mineral involved in maintaining proper cardiovascular, nerve, and muscle health. Next to calcium, magnesium is the second most concentrated nutrient in the body's cells. The primary function is to activate enzymes. Sixty percent of the body's magnesium is stored in the bones, 26% in muscle and the remainder in soft body tissues. Magnesium is critical in energy production. Our Magnesium contains a combination of three different magnesium sources to ensure an easily digestible supplement. (These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.) Contains no sugar, starch, artificial colors, flavors, preservatives, corn, gluten, yeast, wheat, grain, egg, or milk product. Potency and purity guaranteed.