Calcium aspartate is a highly soluble form of calcium, formed by binding one calcium ion and two aspartic acid, providing better absorption, assimilation and usage. Aspartic acid is an important amino acid that functions as a transport mechanism delivering the calcium to proper body sites for specific functions. This form of calcium is readily absorbed by the body and has the dual advantage of releasing calcium and aspartic acid in the blood. Calcium Aspartate has better bio-availability with 90% absorption rate than other form calcium. For example, Calcium Carbonate: 5% absorption rate; Calcium Citrate: 25% absorption rate. All these calcium must have vitamin D and magnesium to make it absorbable. Calcium Aspartate does not need vitamin D or magnesium to be absorbed. At same time, calcium aspartate can’t result in body stone since most of it is absorbed by bone issue. Calcium aspartate anhyrousis thebest calcium source for health food or dietary supplements.