What is it?
Calcium is the most abundant mineral in the human body. Of the 2 to 3 pounds of calcium contained in the average body, 99% is located in the bones and teeth. The importance of calcium for preventing osteoporosis is probably its most well-known role.
Where is it from?
Most dietary calcium in the United States comes from milk and dairy foods. Other good sources include sardines, canned salmon, green leafy vegetables, and tofu.
What is it used for?
Calcium is vital for the formation of strong bones and teeth, and for the maintenance of healthy gums. It is also needed for muscular growth and contraction. Calcium provides energy and participates in the protein structuring of RNA and DNA, and is also involved in the activation of several enzymes, including lipase, which breaks down fats for utilization by the body.