Ya, very true, but wow what a way to learn that lesson. That dog was a weightpulling dog. He got switched to a high performance commercial food within a year.
I guess, the point I am trying to make is don't choose your dog food by marketing, or the picture of the dog on the label. I made a bad choice ( for that situation) do your research to see what ingredients are most commonly associated with the ailments. Then find an affordable, readily available food you can feed. Don't switch your dog's food over night. That causes more issues.