Rainbow Light Calcium With Magnesium and Vitamin D3 delivers a two-to-one ratio of calcium and magnesium to provide the added bone density support you need every day (1). This dietary supplement also promotes strong teeth and includes nutrients necessary for calcium absorption (1). This mineral and vitamin supplement provides 500 mg of calcium to help build and strengthen bones and teeth (1). This calcium supplement contains 250 mg of magnesium to support muscle relaxation and bone flexibility (1). It also includes vitamin D3 to promote enhanced calcium absorption and utilization, and a blend of betaine hydrochloride and plant extracts that make these tablets gentle on the stomach (1). This Rainbow Light vitamins and minerals supplement is made with three forms of calcium and vitamin D, two forms of magnesium, and no wheat, milk, tree nuts, peanuts, soy, eggs, fish or shellfish for people with allergies and dietary restrictions. (1) 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.