Feed your dog's wild side with BLUE Wilderness Rocky Mountain Recipe Large Breed Dry Dog Food. The first ingredient in this high-protein dog food is deboned beef. It's also made with savory venison and lamb to help build and maintain strong muscles. Formulated for large breed dogs, this BLUE Wilderness recipe features Glucosamine and Chondroitin to support joint health. BLUE Wilderness natural dog food is formulated without any chicken (or poultry) by-product meals. It is also free of corn, wheat, soy, artificial flavors, and preservatives. You can feel great knowing Blue Buffalo is helping your dog thrive with a protein-packed diet.