I have had the food problem also!! I have researched and learned a lot on this site. I do agree that we should not feed Large Breed Puppy Food to our boxers. They are considered a medium sized dog. I have my 11 week old on Nutro Ultra Puppy and he is doing so much better. I switched him off of Iams Puppy (gas, gas, gas!!!) The gas now is much, much less. His stool in nice and solid and frequency seems normal. I really like the Ultra Line. His coat was course & dry looking; now it is shiny and beautiful!!! I really think Nutro is a good choice for those of us that can't get the Wellness, etc.. in our area. My husband raises beagles and he is now planning to switch them to the Nutro line.