+1 on no grains. It’s filler and not great for dogs. We feed real meat, fruits and veggies when we can. If we have to feed kibble - easier when traveling or hiking, we go with grain free and usually fish.
The number one allergy for most dogs is chicken!!! We avoid all chicken for our dogs unless it from the farmer market.
Using the above guidelines has kept our dogs healthy, strong, and ear infection free.