There have been a number of clinical studies done on coral calcium, in Japan. It is a product that begs to have testing done, here in America. Until the medical community choose to do more in-depth studies, we must rely on what data we have. In most of the studies coral calcium (SMP) was compared to carbonate (limestone), and dairy. The summary conclusion of the studies are:

1.Coral Calcium has been shown to be the superior calcium source in regard to absorption and bone density.

2.Coral Calcium when compare to Calcium Carbonate is proven to have a superior absorption rate of Calcium, and Magnesium  in a ratio of  5 : 1

3. Study done on Ecological safety while collecting coral grains.