Purina Dog Chow Real Chicken Dry Dog Food This high protein dry puppy food contains 100 percent of the essential nutrients puppies require to grow big and strong through the vital early stages of his development. Packed with 30 percent more protein than the leading adult dog food this highly digestible dog food kibble supports his growing muscles so he can keep up with his adventurous canine pursuits and let him know you care about his health and happiness.