Adequate calcium and vitamin D throughout life, as part of a well-balanced diet, may reduce the risk of osteoporosis. Adequate calcium is important for teens, young adults and post-menopausal women. Each serving of Nature Made Calcium 750 mg with Vitamins D and K provides 750 mg of calcium, 12.5 mcg (500 IU) of vitamin D3, and 40 mcg of vitamin K to support healthy bones. Calcium helps support strong bones. Vitamin D helps improve calcium absorption. Vitamin K helps support healthy bones when taken with calcium. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.