I used Solid Gold Puppy Formula for Banjo but after about half a bag he was throwing up. I dont know if it was just too rich for him. Then I had him on Medical gastric to settle his vomitting which worked. I was also feeding him Green Tripe can food. Hes on a Lamb and Rice now, cannot remember the name but he is enjoying it. Must be OK cos hes going to be a big boy. 5 month now and nearly 10lb.