Calcium Citrate from Optimum Nutrition:

Improve And Maintain The Strength Of Your Bones And Teeth!

Calcium is the most abundant minerals in the human body. Of the two to three pounds of calcium contained in the average body, 99% is located in the bones and teeth. Calcium is needed to form bones and teeth and is also required for blood clotting, transmission of signals in nerve cells, and muscle contraction. The importance of calcium for bone health is probably its most well-known role. Calcium Citrate is generally regarded as the most bioavailable (easiest to digest and absorb) form of calcium. Our Calcium Citrate capsules also include Magnesium and Vitamin D for increased absorption and utilization by the body.