Support your adult dog s skin and digestive health with Blue Buffalo Basics Grain-Free Adult Dry Dog Food Duck & Potato Recipe. Formulated with healthy ingredients that support gentle digestion this limited-ingredient dog food promotes healthy skin and a shiny coat with Omega 3 & 6 fatty acids. What s more this grain-free dog food is made with real high-quality duck as the first ingredient to help build and maintain strong muscles. And like all Blue Buffalo natural dog food BLUE Basics contains no chicken (or poultry) by-product meals. It s also free of corn wheat soy artificial flavors and preservatives.