Calcium is the most popular mineral supplement on the market, yet certain forms of calcium tablets are often poorly absorbed by the digestive systems of older people because of insufficient stomach acid. The Life Extension Foundation Buyers Club supplies calcium and almost all other mineral supplements only in the form of finely divided mineral powders within capsules that easily disintegrate in the stomach for optimal absorption. Studies have also shown that certain mineral compounds are absorbed better than others.

Calcium is the most abundant mineral in the body where it is primarily found in bones and teeth. In bone formation, calcium forms crystals that provide strength to maturing bone. Peak bone mass is usually achieved when people are in their 20’s.

Calcium is needed for more than just healthy bones. It is also important for muscle contraction, blood vessel contraction and expansion, the secretion of hormones and enzymes, and sending messages through the nervous system. A meta-analysis of 56 clinical trials demonstrated a significant impact on heart health resulting from increasing calcium intake by 1000 to 2000 mg/day. In addition, recent evidence suggests that increased intake of calcium may help in weight control as well.

Calcium and other minerals are best not taken with fiber, because fiber can interfere with their absorption. There is evidence that calcium from supplements and dairy foods may inhibit iron absorption, although