Vegetarian Formula Lead Free 8 Forms of Calcium and 5 Forms of Magnesium Phyto Therapy Vegetarian Calcium 1000 mg with Magnesium 400 mg - 180 Capsules Contains 8 forms of Calcium and 5 forms of Magnesium. With Vitamin D3 and K1 for Optimum Utilization and adequate Calcium and Vitamin D throughout life as part of a well-balanced diet, may reduce the risk of osteoporosis. Calcium is the most abundant, essential mineral in the human body. Of the two to three pounds of calcium contained in the average body, 99% is located in the bones and teeth. Calcium is needed to form bones and teeth and is also required for blood clotting, transmission of signals in nerve cells, and muscle contraction. The importance of calcium for preventing osteoporosis is probably its most well-known role. Magnesium is an essential mineral to the human body. It is needed for bone, protein, and fatty acid formation, making new cells, activating B vitamins, relaxing muscles, clotting blood, and forming adenosine triphosphate (ATP; the energy the body runs on). The secretion and action of insulin also require magnesium.