Blue Buffalo Natural Veterinary Diet W+U Weight Management and Urinary Care Dry Cat Food is a veterinarian-prescribed weight management formula with real chicken as the first ingredient. This dry cat food is made with ideal levels of fat, calories, fiber, and minerals, making it a great meal to help adult cats achieve a healthy weight. Like all Blue Buffalo cat foods, this dry cat food contains no chicken (or poultry) by-product meals. It’s also free of corn, wheat, soy, artificial flavors, and preservatives. With BLUE Natural Veterinary Diet, you can feel great knowing your cat’s food tastes great and is keeping them healthy.