We have used Kirkland Chicken and Rice for four years now. It was the only food we could find that solved Riley's horrible gas and pudding poop problems. Turns out he cannot tolerate corn or wheat. This is a reasonable cost kibble that is corn and wheat free.
For those that are interested, here is a photo of the contents label. At almost 400 calories per cup, we feed between 2 to 4 cups daily for our pack. Gizzy our 58 pound petite girlie gets one cup twice daily, and Lady our 70 pound athletic girl gets two cups twice a day. Specky gets just under two cups twice daily, and poor Riley has a slow metabolism and he only gets 1.5 cups twice daily!