Nutritional Calcium Magnesium & Zinc is a high potency formula created to support a healthy musculoskeletal and nervous system. These minerals are essential for bone, brain, nerve, muscle and cellular health. Calcium contributes to normal muscle function. Magnesium contributes to protection of cells from oxidative stress. Zinc contributes to normal metabolism of Vitamin A. , Directions: As a dietary supplement for adults, take one (1) tablet one to three times daily, preferably at mealtime, or as directed by the healthcare practitioner.