From the No. 1 doctor-recommended brand, Ensure Original Nutrition Powder provides complete and balanced nutrition. The convenient powder form makes it easy to mix with your favorite foods and water, and it's easy to store. Each serving has 9 grams of protein and 26 essential vitamins and minerals. Survey of 321 independent-living adults aged 50-80 years old, who reported a lack of energy or appetite, added 1-2 servings of Ensure Original daily to their regular diet. Participants self-reported improvements in strength, energy, and activity.