Solgar Calcium Magnesium With Vitamin D3 150 TabletsCalcium 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.* Vitamin D is required to promote calcium absorption, which helps to maintain healthy bones and teeth.* Vitamin D also supports a healthy immune