Both my dogs have been on grain-free foods their entire life and no antibiotics ever. Occasionally I feed them leftovers from my paleo plate...one of my dogs is 10 yrs old and she developed a uterine infection and the other dog is almost 3 yrs old and now she has a urinary tract infection. So I fed Wellness brand for a while and then switched to Iams Grain Free cause Walmart sold it. My older dog has stomach pains, lots of rumbling noises in her stomach which I thought would go away once she was spayed but she is still not well....So now I am wondering whether grain free is actually working to give them better health. I was looking at Hill's Science Diet Digestive Care and people RAVE that it's great for digestive issues and it contains all the stuff I was trying to avoid letting my dog eat. They say illness comes from a bad diet and yet they were supposedly eating the best. In my opinion there must be something missing in grain free dog food. 
I know this is not a question...but if you've had a similar experience or know of a great dog food for digestive issues besides Hill's Science Diet which is incredibly expensive, please share.
I know this is not a question...but if you've had a similar experience or know of a great dog food for digestive issues besides Hill's Science Diet which is incredibly expensive, please share.