Duocal Powder is a high-calorie, protein-free, lactose-free, gluten-free powdered food that can be used orally or in tube feedings. Duocal Powder provides fat and carbohydrate for increased caloric intake for children over 1 year old. Duocal was developed specifically for protein and/or electrolyte restricted diets. Super Soluble Duocal Powder is completely soluble in water, liquids and moist foods without altering taste. Unflavored. Disorders of protein and amino acid metabolism Protein restricted diets Electrolyte restricted diets High Energy Diets Failure to thrive Other conditions where extra calories are required.