I went to a seminar given by Dr. Jean Dodds and she did say most OTC single protein foods are contaminated by an unnamed protein. That could make do it yourself elimination diets quite tricky. Consider trying the Rx foods first and when your dog responds well to the chosen protein, then you can try another brand. My dog started on Royal Canin PV (potato and venison). After being on that for 3 months I tried Natural Balance Venison and Sweet Potato and he is doing well on that. It’s half the price of the RC and a little higher in protein. Remember when judging whether a food is good or not, you have to determine whether your dog does well on it. If your dog does well on it, then it is a good food for YOUR dog.
