Natural Factors Calcium & Magnesium Citrate with D3 and potassium, zinc & manganese helps in the development and maintenance of bones and teeth. The minerals are in the citrate form, making them more readily absorbable and metabolized by the body. Vitamin D3 is in the cholecalciferol form, which is natural, safe, and highly absorbable. Medicinal Ingredients Tablet: Capsule: Non-Medicinal Ingredients Tablet: Microcrystalline cellulose, coating (carbohydrate gum [cellulose], glycerin, titanium dioxide, polydextrose, triacetin, polyethylene glycol), croscarmellose sodium, vegetable grade magnesium stearate (lubricant). Capsule: Gelatin capsule (gelatin, purified water), vegetable grade magnesium stearate (lubricant), microcrystalline cellulose. Helps in the development and maintenance of bones and teeth. Calcium intake, when combined with sufficient vitamin D, a healthy diet and regular exercise, may reduce the risk of developing osteoporosis. Helps in connective tissue formation, maintains proper muscle and immune function, and supports healthy skin. Helps the body to metabolize carbohydrates, fats and proteins.