Real Food, Real Nutrition, Real Dog Treats. Only two ingredients, pure natural beef liver & real banana. Pet owners and in particular dog trainers, have discovered Benny Bullys® Dog Treats as a nutritious, pure and natural alternative to traditional dog treats. We added real banana to the beef liver in our original Benny Bully’s Liver Chops®, making Benny Bullys® Plus a delicious blend of nutritious and delicious pure natural ingredients.