Hi all! Our golden, Snitch, is 14 weeks old. He's been wonderful so far, our only trouble has been his tummy. He tested negative for everything and is now doing ok with I/D food, Tylan, and a probiotic. We will need to try transitioning his from the I/D onto a large breed puppy food again at some point. We previously tried Pro Plan Large Breed Puppy but it gave him diarrhea. Any recommendations for a large breed food that may be gentle on a sensitive stomach?