From the #1 doctor recommended brand Ensure Plus Nutrition Shake provides nutrition to help you gain or maintain a healthy weight. It has 350 nutrient-rich calories 13g of high quality protein and 26 essential vitamins and minerals as well as antioxidants (Vitamins C E & Selenium) to support your immune system and Omega-3 s to support heart health. Feel more strength and energy in just 2 weeks* *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.