Ensure Plus nutrition shakes are clinically proven to help gain weight. Each shake contains 16 grams of high-quality protein, 350 calories, 27 vitamins and minerals, and nutrients to support immune-system health, including vitamins A and D, zinc, and antioxidants.* Ensure Plus protein shakes provide complete, balanced nutrition and are a great meal replacement option! * Vitamins C and E. ? eligible in Similac WIC-contracted states, in-store only; **The WIC (Special Supplemental Nutrition Program for Women, Infants, and Children) and SNAP (Supplemental Nutrition Assurance Program) names are service marks of the U.S. Department of Agriculture. USDA does not endorse any goods, services, or enterprises. Age Group: adult.