Natural Calcium Support, The only combination of Calcium, Magnesium, Zinc, and Potassium that contains the essential trace nutrients necessary for maximum absorption. Vitamin D3, Essential for Calcium Absorption. Calcium Citrate and Calcium Malate, 2 of the Highest Absorbed Calcium Chelates. Trace Mineral Supportive Combination including Zinc Chelate, Copper Chelate, Manganese Chelate, Potassium Citrate, Boron Chelate, and Strontium Chelate. This Combination of Mineral Chelates has been shown in 7 Clinical Studies to actually increase Bone Density. The Best Natural Calcium Support in the Wor