Premium Nutri Chomps 2.25 Chicken and Pork Skin Mini Knots are rawhide-free dog chews. Veterinary Recommended Premium Nutri Chomps are safe & healthy dog bones. In 2012, The University of Illinois College of Veterinary Science conducted a study which proved pork skin to be fully digestible and significantly more digestible than beef rawhide. Jungle Jack Hanna has endorsed the Premium Nutri Chomps brand as a safe and healthy rawhide alternative. Chicken Wrapped Mini Knots are perfect for Miniature Dogs and some Small Dogs.