Calcium Supplements To Keep You Living Longer
Oyster Shell Calcium

Oyster shell calcium is often advertised as a more natural form of calcium with a higher absorbable content of calcium. However, oyster shell calcium is difficult to have quality control over, and many supplements may contain high levels of lead toxins, which are extremely dangerous especially to children. Long-term exposure to lead may result in problems with the nervous and reproductive systems, the kidneys, and the liver. It can also cause permanent brain problems. The Global Healing Center recommends avoiding this type of calcium.
Calcium Citrate

Contrary to most forms of calcium, calcium citrate has an acidic base, which means it is better absorbed into the digestive tract because it requires less production of natural stomach acids. It contains approximately twenty percent of elemental calcium. According to the New York State Department of Health, calcium citrate is the only form of calcium that does not require stomach acid to metabolize it and t can be taken with or without food. Calcium citrate is recommended for people with low levels of dietary calcium who take acid-blocking medications.