Product DescriptionCalcium Citrate is derived from citrus fruit and contains 21% elemental calcium by weight. This formula provides Calcium in a soluble citrate form. Magnesium, Vitamin D, Boron and Zinc are added for increased assimilation. Recent research suggests that Boron may help in the body s retention of bone building minerals. Calcium is vital for the formation of strong bones and teeth and for the maintenance of healthy gums. Calcium is also important in the maintenance of a regular heart beat and in the transmission of nerve impulses. Formulation Benefits: Vitamin D (Cholecalciferol): Aids absorption of calcium and may help build bone mass. Calcium (Citrate): Highly absorbable form of calcium essential for developing and maintaining healthy bones. Magnesium (Citrate & Oxide): Activates over 100 enzymes and helps nerves and muscles function. Zinc (AAC): An essential mineral that is vital for bones and collagen formation. Boron (Proteinate): May help retention of bone building minerals. Also necessary for the metabolism of calcium, phosphorus and magnesium. Supplement Facts Servings Size: Four (4) Capsules Servings Per Container: 25