This is an amazing dog food. My dog has a VERY sensitive stomach, having IBD, AND has bad food allergies. Giulio Ferrari, the pet nutritionist at The Paw Depot recommended Carna4, and I have to admit that initially I was a bit skeptical, but within a week my dog gsd stopped itching and the stools are firm. The vet had her on Science Diet and antibiotics, and for 2 years sge suffered, but she is doing great now. It amazes me that with a lot less than what I used to spend at the vet, they were able to fix in one week what the very couldn't in 2 years.