hi there, this is my first post but i am hoping to get some good suggestions here. my Berner Bruce is 9 months old and has had some serious tummy troubles this summer. at first the vet thought he had a parasite but after multiple sets of antibiotics and still no change in his diarrhea the vet suggested a food change because he may have an allergy to the food he was on. we switched bruce to a salmon and potato based limited ingredient dog food (which is what the vet suggested) and it seems to be working but my pet store has discontinued selling our kind. i guess my question is, does anyone have any suggestions for a large breed puppy food that is for a sensitive stomach? we are in Alberta, Canada4 thank you in advance.