I used Purina 1 for a long time. But my dogs had a puking problem with it. So, I switched to Buffalo Blue salmon and sweet potato. They did really well, and it had great ingredients. But it went up to 42 bucks a bag. So I went to the supermarket and read labels. I ended up with Purina Sensitive, first ingredient is salmon, and I think it has brown rice. They love it, and I have not had a problem, it's been a few weeks. So, we'll see.