I realize this is an old post, but I just want to chime in and say that when Chaucer turned a year old, and we started switching him over to 'adult' food, he had some stomach stuff happen. The vet had us put him on a bland diet, and then we moved him, gradually to Wellness, and he was fine. We have been using Wellness Core Grain Free for Small Breeds for a very long time, and we love it. I use to supplement with homemade dog food (rice and chicken), then stopped. Now that we live in the city and have a doorman, he has been getting treats that I've not inspected. He's started having some symptoms of acid reflux (which I just figured out). The odd treats will be stopping, and I'll be adding the homemade food back in and we'll just stick to Wellness