Ensure Clear Therapeutic Nutrition, Apple, 237 calories per 8 ounce (237 mL) institutional carton. ENSURE CLEAR is a great-tasting, clear liquid nutrition drink that contains high-quality protein and essential nutrients. ENSURE CLEAR is fat-free, making it an ideal choice for patients on clear-liquid, pre- and post-surgical, bowel prep, fat-malabsorptive, and fat-restricted diets. It is also ideal for patients who prefer a fruit-flavored alternative to creamy shake-like supplements. ENSURE CLEAR can benefit patients who have malnutrition, are at nutritional risk, or are experiencing involuntary weight loss. For oral use. Use under medical supervision.