Now Calcium Citrate supports bone health. Calcium citrate is a readily digested and absorbed form of calcium, a mineral necessary for the maintenance of bone health. Vitamin D, magnesium, zinc, copper, and manganese have been included for their essential roles in bone metabolism. Recommended Use: Take 2 tablets daily, preferably in divided doses, with food, or as directed by a healthcare professional. Store in a cool, dry place after opening.Now Calcium Citrate Facts: 2 tablets contain: Vitamin D2 (as Ergocalciferol - a vegetarian source) 10 mcg (400 IU) Calcium (from Calcium Citrate) 600 mg Magnesium (from Magnesium Oxide and Magnesium Aspartate) 300 mg Zinc (from Zinc AAC) 15 mg Copper (from Copper AAC) 1 mg Manganese (from Manganese AAC) 5 mg Other Ingredients: Hydroxypropyl Cellulose, Vegetarian Coating, Croscarmellose Sodium, Silicon Dioxide, Magnesium Stearate (vegetable source) and Stearic Acid (vegetable source). AAC = Amino Acid Chelate.