Blue Buffalo Wilderness Grain Free Dry Dog Food, Duck Recipe, 4.5-Pound Bag Provides The Added Protection Of BlueS Exclusive Lifesource Bits, A Precise Blend Of Vitamins, Minerals And Antioxidants. Includes Only The Finest Natural Ingredients And Contains No Chicken Or Poultry By-Product Meals, Artificial Preservatives, Corn, Wheat Or Soy. A Sensible Alternative To A Raw Diet