I have a little red Heeler that is a little over a year old, and when he was younger he was having a hard time with food and such had pancreatitis. He is now fine. He is on the thin side however and I am feeding him Atrium holistic dog food, I think the protein is 26%? Currently two cups a day, when I give him more he gets gassy. So I don't know if switching to a higher protein is a good idea or not?