Blue Buffalo Wilderness Grain Free Salmon Adult Dry Dog Food is formulated to be a high-protein, low carbohydrate food. This formula contains a high concentration of natural Salmon protein! There is added Chicken and Turkey meal for extra vitamins and minerals. Sweet potatoes and potatoes are added to provide a healthy array of carbohydrates as well as fruits and vegetables like blueberries, cranberries and carrots which are rich in antioxidants! Best of all, it is absolutely grain free! This formula also contains Blue Buffalo's LifeSource Bits. These bits contains a precise blend of vitamins, minerals and antioxidants! LifeSource Bits help counteract the negative impact of some environmental toxins, strength your dog's immune system and supports their specific life stage requirements.