I will give you some advice as it pertains to one of my dogs. I did not do allergy testing but an online friend gave me a list of ingredients to avoid: chicken, corn, wheat, soy, rice and flax. I have since found that Boone does fine with flax but cannot have yeast. He has done the best with a grain and potato free foods. Beef can be a common allergen, I have read. On this forum, go to the dog food ingredients board and the stickie at the top has the list of those foods.
Boone does best with fish and turkey foods. He eats a pre made raw in the morning and some of that is beef and he has no issue with it. His pre made is also turkey and duck. He eats Brothers Allergy, which has chicken liver & chicken at but is doing great on this food.
Something to keep in mind. You have to be mindful of every morsel your dog eats. That means treats as well. If you feed him a grain free food, feed him grainfree treats. Scour that ingredients list. Also, you wouldn’t think about it but supplements as well. Mixed tocopherols can be soy so the salmon oil I give him is just that, salmon oil (it’s a liquid). I once gave him a salmon oil capsule that had soy as a secondary ingredient. We use Bug Off Garlic for the insects and we cannot use the chewables because there is yeast in it.
I advise trying a few different foods, by different makers. I like doing that because you never know if a food will become unavailable or you see a sale on another one he can have. Hope I’ve been of help!
