Unless we intervene, at around the age of 30, our bone mass begins to decline. Keep bones healthy and strong with calcium hydroxyapatite, made from a form of calcium that gives bones their strength and rigidity. Bones consist of living cells embedded in a mineralized organic matrix. The more bone mass, the stronger the bone. This form of calcium contains trace mineral cofactors for enzymes involved in the production of bones (phosphorus, magnesium, iron, zinc, copper, manganese). The vitamin D increases the body s assimilation of this important mineral. Adequate calcium and vitamin D throughout life, as part of a well-balanced diet and physical activity, may reduce the risk of osteoporosis in later life.