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.* Adequate Calcium throughout life, as part of a well-balanced diet, may reduce the risk of osteoporosis.