Purina One +Plus Dry Dog Food Skin and Coat Formula, Give your dog a SmartBlend of ingredients at every meal with Purina ONE +Plus Natural Skin Coat Formula with added vitamins, minerals and nutrients adult dry dog food. This high protein dog food features real salmon as the #1 ingredient, and when combined with rice, oatmeal and other high-quality ingredients, delivers easy-to-digest nutrition for your dog. Developed to deliver 100% complete and balanced nutrition for adult dogs, our salmon natural dog food recipe has no artificial colors, flavors or preservatives and 0% fillers.