All-Natural, Bully Stick Chews! Very fresh, dried perfectly to maintain chewiness, the way your pup likes them. Nothing is added, no fillers, no preservatives, no chit! High in protein and a complete source of all the amino acids your dog needs. Studies have proven that chewing on bully sticks is not only enjoyable and oh-so-satisfying, it can actually improve dental health and minimize issues that arise in dogs as they age. Bully sticks help reduce plaque for cleaner teeth and fresher breath for improved oral health.