Blue Buffalo Natural Veterinary Diet GI Gastrointestinal Support Low Fat Dry Dog Food is a veterinarian-prescribed digestive care formula specifically for dogs who have difficulty digesting fat. Made with tasty whitefish as the first ingredient this food for dogs is crafted with prebiotic fibers to balance and support healthy microflora plus readily digestible ingredients for optimal nutrient absorption. What s more this food for dogs with sensitive stomachs is a complete and balanced formula that provides a maintenance energy level for adult dogs. BLUE Natural Veterinary Diet is formulated without any chicken (or poultry) by-product meals. It s also free of corn wheat and soy and contains no artificial flavors or preservatives.