Ana maria lajusticia - collagen with magnesium - 450 tablets key benefits: proteins help to maintain your bones in good condition and to preserve and increase muscle mass. Magnesium helps reduce tiredness and fatigue and contributes to normal protein synthesis, normal energy metabolism and normal function of the nervous system and muscles. Gluten free 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. . Ana maria lajusticia collagen with magnesium - 450 tablets (50 servings)