Metabolic fuel.*. What is calcium pyruvate? Pyruvate is an antioxidant involved in cellular energy production.* Pyruvate is present in all cells and a key player in glucose metabolism.*. . How does calcium pyruvate support health? High amounts of calcium pyruvate may be helpful in your workout program. Potential energy booster.*. Why choose Vitacost Calcium Pyruvate? Provides a good source of calcium. High-quality and value-priced! 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.