Dietary Supplement. Extra vitamin D3 to help optimize calcium absorption. Promotes bone health. Laboratory tested. Calcium is the primary mineral responsible for strong bones. The body also uses Calcium for proper muscle contraction and nerve function. Vitamin D3 assists in Calcium absorption and maintaining a healthy immune system. Regular exercise and a healthy diet with enough calcium helps maintain good bone health and may reduce the risk of osteoporosis later in life. (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.) No artificial color, flavor or sweetener, no preservatives, no sugar, no milk, no lactose, no soy, no wheat, no yeast . Sodium free. No gluten.