Ensure compact nutrition shake provides the complete, balanced nutrition of ensure original in half the size.† Perfect for those having difficulty drinking a full shake or looking for a more convenient nutrition option, ensure compact provides 9 grams of high-quality protein, 220 calories, and 26 essential vitamins and minerals, in an easy-to-drink 4 fl oz shake. Ensure compact has the same great taste you expect from ensure and is available in milk chocolate and vanilla flavors. *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. †4 fl oz in ensure compact compared to 8 fl oz in ensure original.