Pediasure Peptide 1.5, Vanilla, 8 fluid ounce (237 mL), Ready-to-Feed, Institutional. PEDIASURE PEPTIDE 1.5 is a nutritionally complete, peptide-based formula for the nutritional needs of children 1 to 13 years of age with malabsorption, maldigestion, and other GI conditions. It is designed to meet the nutritional and caloric needs of kids who require higher caloric density, have fluid restrictions, and are at risk for malnutrition. For oral or tube feeding. For supplemental or sole-source nutrition. Use under medical supervision.