Fsc calcium magnesium d 60 tablet fsc calcium magnesium vitamin d 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 one of the risk factors for osteoporosis 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 in association with calcium is im