GNC Calcium 1000 Magnesium 400 with Zinc and CopperGNC 1000 400 GNC . : 1000 : . 400 : . 15 : . 1 : . ( 3 ): ( ): 1000 (100% ). ( ): 400 (100% ). ( ): 15 (100% ). ( ): 1 (50% ). : : . . : . . : . GNC Calcium 1000 Magnesium 400 with Zinc and Copper This dietary supplement from GNC combines essential minerals that support bone and joint health, enhance muscle function, and contribute to maintaining strong teeth. Product Features: 1000 mg of Calcium: Essential for building and maintaining strong bones