Food sensitivity tests are known for both false positives and false negatives, so are unreliable. Try a limited ingredient diet that is poultry and grain free. Sometimes dogs with food sensitivities react to classes of food, so if they are sensitive to chicken, they may be sensitive to turkey, duck, goose, and quail too. They can also be sensitive to many different foods, like poultry, grains, and legumes. Good luck on identifying your dogs triggers. I’ve been working on this with my dog for 3 years now and I’m still finding things he reacts to.
