Moss Nutrition Calcium Select offers two forms of calcium: dicalcium malate (DimaCal™) and calcium bisglycinate chelate, manufactured by Albion Laboratories, and vitamin D. 
 
 
 
Calcium bonded to malic acid, and calcium bonded to glycine. Malic acid is produced in our bodies in the Citric Acid Cycle and in vegetables and fruits, especially apples. Glycine is also innately produced in the human body and synthesized by the amino acid serine. The process of chelation forms covalent bonds between the calcium ion and the malic acid and glycine, so the calcium has a neutral charge and a smaller molecular weight, so it is better absorbed in the intestine.