* Healthy PH Balance * Importance for Bone Health * GMP Quality Assured * A Dietary Supplement Now Coral Calcium Powder is an alkaline form of Calcium that can help to support a healthy serum pH. In addition, Coral Calcium has naturally occurring trace minerals that are important for bone health, as well as for optimal enzymatic activity. Now Coral Calcium is not harvested from living coral reefs or even from the ocean environment, but from above-ground sources in an ecologically friendly manner.