Calcium and vitamin D help to reduce the loss of bone mineral in post-menopausal women. Low bone mineral density is a risk factor for osteoporotic bone fractures. Calcium and Vitamin D contribute to the maintenance of normal bones and teeth. Vitamin D helps in the normal absorption and utilisation of calcium. Magnesium also helps support the maintenance of normal bones and teeth and contributes to normal muscle function and a reduction in tiredness & fatigue. Just 2 tablets a day will provide the RDA of all these important nutrients.