Vital to the development and maintenance of healthy teeth and bones. Potent health for muscle and heart function. Each three-capsule serving provides 500 mg of calcium and 250 mg of magnesium. An ideal balance of two important minerals in 100% natural and pure forms. Calcium carbonate - citrate - malate complex is an advanced chelate complex, which enhances absorption of calcium through the intestine. Magnesium citrate provides excellent solubility for superior absorption. Calcium and magnesium are essential for proper bone development and muscle and heart function. Both minerals are involved in more than 300 enzymatic reactions that produce energy. Calcium and magnesium are also necessary for muscle function. They provide the mechanism for muscle contraction and relaxation, including the heart muscle.