My little boy, Wesley, a miniature Dachshund was diagnosed with allergies in November 2017. He was itchy, red and inflamed everywhere, and had yeast in his ears, on his elbows and in his lip margins. The dermatologist put him on a strict diet of Ultamino, which is made from chicken feathers, to determine if it was food allergies or environmental. Wesley LOVES this food. I’ve had no issues with him eating it. He’s also improved so much!! He barely itches, he hasn’t had an ear infection since Nov, and redness is gone. I definitely see the difference. Wesley sometimes gets into things he shouldn’t (chicken nuggets in the trash etc) and I can always tell as he’ll be sitting and itching non stop, and start going red again. Ultamino has helped my little guy out so much!! Just a warning, it does make the poop more solid and pebble-like, but that’s just the food, so don’t worry!