Calcium is necessary for the development of strong bones and teeth, also prevents muscle cramping, maintain regular heart beat, protects against osteoporosis and helps relax the central nervous system.Instructions: Adults and children 4 or more years of age: 4 wafers daily. Post menopause women : 6 wafers daily. Children under 4 years of age: 2 wafers daily.Additional Info: Calcium citrate is an ionized, soluble and chelated form of calcium preferred by many health and nutritional experts. It is often better absorbed than insoluble forms of calcium such as calcium carbonate and calcium phosphate. Calcium citrate can be an enormous benefit to older people and people with greater calcium needs. It is also less likely to cause constipation than some other forms of calcium. In addition, each delicious calcium citrate wafer provides the added benefits of magnesium and vitamin D.Ingredients:Elemental Calcium (from calcium citrate)?1000mg?100%,Elemental Magnesium (from magnesium aspartate & magnesium oxide)?500mg?125%, Vitamin D-3?400iu...100% % U S RDA]