Just a suggestion, but you might not want to go from a 2-star, 20% protein, limited ingredient food (NB bison and sweet potato) to a 5-star, 33% (and higher) protein food. That might be too much of a change for your dog, unless you do a very slow transition. Sometimes I like to suggest changing foods in increments. Try a 3.5-4 star food for a while, then try 4.5-5 stars. Pro Pac Ultimates Grain Free (fish, lamb and beef recipes) and Nutrisource Grain Free Seafood Select might be two options for you to start with. They range from 23-25% protein. Just a thought!
