Inspired by the diet of wolves, true omnivores whose endurance is legendary, BLUE Wilderness is a protein-rich, grain-free food that contains more of the delicious salmon your dog loves. Made with the finest natural ingredients â and no grains. Deboned salmon, chicken meal and menhaden fish meal supply the protein your dog needs. Sweet potatoes and potatoes provide healthy complex carbohydrates. Blueberries, cranberries and carrots support antioxidant-enrichment.