Provides 100% of the Daily Value for magnesium in two tablets. What is magnesium citrate? Magnesium is a mineral found in bone and other cells. It's used in more than 300 biochemical reactions in the body. How does magnesium support health? Supports normal muscle contraction and relaxation.* Supports normal nerve function.* Supports the production of protein in body cells.* Important for healthy bones.* Maintains blood pressure already within normal range.* Why choose Vitacost Magnesium Citrate? Supplies 100% of the Daily Value for magnesium per 2-tablet serving. Contains 240 servings per bottle. Exceptional quality at an extraordinary value. About Vitacost Vitacost nutritional products are manufactured to high standards of quality, efficacy and safety. Each Vitacost product meets or exceeds the standards and requirements set forth in the FDA's Code of Federal Regulation (21 CFR, 111) Current Good Manufacturing Practices (CGMP). * 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.