1200 mg | Plus 25 mcg (1000 IU) Vitamin D3 Per Serving Supports Bone Health May Reduce the Risk of Osteoporosis** Mineral Supplement Guaranteed Quality Laboratory TestedNearly 50 Years of Trusted QualityAt Nature's Bounty, we are committed to your health. For nearly 50 years we have been making trusted products, backed by science, and made with only the purest ingredients...guaranteed. So you can get the most out of life every day.**Adequate Calcium throughout life, as part of a well-balanced diet, may reduce the risk of osteoporosis.