Calcium provides the building blocks that help keep bones and teeth strong and healthy. It also supports the health of the heart, musculoskeletal system and nervous system. Magnesium helps to regulate calcium transport and stimulates the secretion of calcitonin, a hormone that aids in the influx of calcium into bones. Magnesium also works with ATP to release the energy needed for most reactions in the body. It plays an important role in protein formation and healthy muscle function. This formulation also contains Boron, a trace mineral that helps facilitate calcium metabolism, which promotes bone health.