SCHIFF NATURAL CALCIUM MAGNESIUM 180 TB Chelated Calcium with Magnesium plays a role in the development of strong bones and teeth, heart function and rhythm, blood clotting, brain, nerve, eye and muscle function, blood pressure, cholesterol levels, energy production, and reducing the risk of colon cancer. Calcium is needed for normal bone and teeth development, blood clotting, enzymatic action, and the regulation of fluid passage through walls of tissue and cells.* Necessary for the building of healthy bones and teeth.* Magnesium is an essential mineral to the enzyme systems that are responsible for energy conversion in the body.* Magnesium also helps to regulate proper calcium metabolism.