I put my Chihuahuas on this as I suspected a food allergy in one of them and the Wilderness Blend with Buffalo and Venison in it were just the novel protein sources that I needed to help determine her allergy. Her symptoms actually got worse over time which helped me conclude that her allergy was not to chicken protein, but to grain as everything she has eaten up to this point had contained at least 2 or 3 grains.
I have worked in the veterinary industry for many, many years and had been under the impression that the veterinary diets and some of the higher-cost commercial diets out there were great. After a few years of studying nutrition in university, I now know that most of the dog foods out there are GARBAGE but Merrick is definitely NOT one of them. It wasn't for my dogs but I wouldn't hesitate to recommend it.