Calcimate Plus™ features calcium citrate malate, a highly absorbable form of calcium Supplies 800 mg of high absorbable calcium to supplement the typical 1000 mg daily calcium need adults This advanced mineral formula combines other bone-strengthening nutrients such as 200 IU of Vitamin D and 100 mg of magnesium for complete bone supplementation Helps improve bone density. Adequate calcium in a healthy diet may reduce the risk of osteoporosis later in life. Calcium and magnesium are minerals which are also critical for health muscle contraction and relaxation All GNC mineral amounts shown are elemental (i.e. nett mineral yield) Calcimate Plus™ benefits those who lack of calcium in their diet, as well as sports enthusiasts. Direction of use: As a health supplement, adult to take two tablets at breakfast and two tablets at dinner for a total of four tablets daily.