Its unique texture and specialized formula help freshen breath and remove plaque and tartar while your dog chews. Since it is low in fat and calories and highly digestible, it?s completely guilt free! Wheat and soy sensitive pups can chow down as well because N-bone? PupperNutter? is wheat free and soy free. N-Bone? PupperNutter? chew bone for dogs is a satisfying and natural way to ensure excellent oral health, with the irresistibly delicious flavor of peanut butter.