Calcium provides the building blocks that help keep bones and teeth strong and healthy. It also supports the health of the musculoskeletal and nervous systems. Magnesium helps to regulate calcium transport and stimulates the secretion of calcitonin, a hormone that aids in the influx of calcium into bone. Magnesium also works with ATP to release the energy needed for most reactions in the body. This formulation offers multiple forms of calcium and magnesium providing a 1:1 calcium to magnesium ratio.