Calcium has long been known as vital for strong bones, and is gaining recognition for its role in preventing cancer, relieving symptoms of PMS, and lowering blood pressure. Our Calcium contains the vital nutrients that the body needs to properly assimilate calcium plus a blend of the best forms of calcium. Calcium is a difficult supplement for many people. Tablets are often weak, poor forms (such as carbonate), or don't provide the necessary supporting minerals. We also added Boron, recommended by many as building bone density, key to staving off osteoporosis.