Nature Made Calcium Magnesium and Zinc is scientifically formulated to provide bone support nutrients as well as those that aid in nerve muscle and metabolic reactions.† Adequate calcium and vitamin D throughout life as part of a well-balanced diet may reduce the risk of osteoporosis. Adequate calcium is also important for teens and young adults and post-menopausal women. Magnesium helps support nerve muscle and metabolic functions.† Each tablet of Nature Made Calcium Magnesium & Zinc provides 333 mg of calcium 133 mg of magnesium and 5 mg of zinc as well as 5 mcg (200 IU) of vitamin D. †These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose treat cure or prevent any disease.