HEALTHY & DELICIOUS WILDERNESS DRY DOG FOODBlue Wilderness Rocky Mountain Recipe is supplemented with LifeSources Bits, which is an exclusive, precision blend of vitamins, minerals, and antioxidants specially designed to support your dog's overall health and well-being.Features Bison as one of its flavors, a hearty and protein-rich meal adapted from the diet of wolves from the American West. This formula contains no chicken, poultry by-products and artificial flavors. Others include high-quality red meats such as lamb, beef, and venison. Each formula contains no wheat, soy, corn, or poultry by-products.