Hey! I fed Cisco Nutro Natural Lamb&Rice small bites. When I first got him I was feeding him Hills Science Diet. After a while it seemed that he formed allergies to it. I changed to Nutro and I have had no problems since. I believe the corn in the Hills was the culprit, but I can't be 100% sure. I have always heard from others that the Flint River Ranch is a high quality food. Cisco has tried a sample once and he liked the kibble, but you have to order it over the net. At least in my area ya do.