Gnc calcium plus magnesium & vitamin d-3 1000 mg - 180 caplets calcium plus magnesium & vitamin d-3: provides 1000mg of calcium 20 mcg (800 iu) vitamin d-3 & 500mg magnesium per serving. Strong bones: calcium is essential for building & maintaining strong, healthy bones. Enhanced calcium absorption: vitamin d & magnesium enhance calcium absorption. Backed by science: since 1935, gnc has been committed to meeting the highest standards of quality, safety, and efficacy while applying the most up-to-date advances in nutritional science so you can live well. 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. . Gnc calcium plus magnesium & vitamin d-3 1000 mg healthy - 180 caplets (60 servings)