This is an excellent protein source for dogs. It is highly palatable for dogs and especially for picky eaters with decreased appetites. I had a dog several years ago who suddenly stopped eating and we were working with the vet to figure out why ( going through several diagnostics), this was one of the few foods he would eat at the time. It contains partially digested plant matter & naturally occurring gastric juices with healthy digestive enzymes. It is high in vitamins and minerals, and healthy fats and very low in phosphorus. It is also grain and filler free and contains no chemical preservatives. It is amazing for your dog. But be warned it smells worse than a landfill. I have never smelled anything so bad in my life, but my dogs loved it.