Vitamin D plus magnesium contribute to the maintenance of normal bones plus biotin, pantothenic acid & vitamin B12 with copper and iron which contribute to normal energy release. Bulking Agents: Dibasic Calcium Phosphate, Microcrystalline Cellulose, Magnesium Oxide, Vitamin, (Ascorbic Acid [Carrier: Glyceryl Tristearate]), Anti-Caking Agents: Stearic Acid, Silicon Dioxide, Magnesium Stearate,Pantothenic Acid (As Calcium Salt), Vitamin, (D Alpha Tocopheryl Acid Succinate)?.