We tried this for a few months with our GSP, but she was not a big fan. We had a hard time getting her to eat it. Also, her poops were huge and she pooped probably 5-8x a day. The stool usually wasn't very easy to pick up either. We switched from this to Purina Pro Plan Sport (with grain) after DCM news about grain free and her poops are now firm and very easy to pick up and 1-3x a day instead which leads me to believe she's absorbing more nutrients. She's also filled out more and is keeping her weight on.