Calcium is needed to develop and maintain healthy bones and teeth, and is an important factor in reducing the rate of age-related bone loss. It is also essential for cellular growth, blood clotting, nerve impulse transmission and muscular function. Calcium can compete with magnesium for absorption, so supplemental magnesium is added. Magnesium is association with Calcium, is important for bone structure and strength, and for keeping calcium soluble. It is also needed for muscle relaxation and for growth. No artificial flavours or preservatives. No added Salt. Gluten Free. Wheat Free. Yeast Free. Dairy Free. Soya Free. Corn Free.