I must submit, Dogs are carnivores, the same species as wolves, Canis Lupus. While in wolf biology, We found that wolves, even cyotes diets consisted of 98% animal protien and 2% veggitation. Only in the the spring do they comsume 5 or 6 percent veggitation. It only consist of grass and a few wild berries. We also found that they eat it for roughage, while younger wolves never ate it, and it was only in the spring. Whith that being said, european wolves never ate it except the Iberian Wolf. They only stumblesd up on farmers friuts once or twice in the summer. Never has the wolf eaten grains in the wild. Study it out and you will find truth and facts. The reason our pets get kidney failure is the source of the protien that is too high which is grain. High amounts of grain does not proccess well in short intestines vs meat.Keep this in mind, Cats in the wild; first eat their preys gut, while canines very rarely eat it. In conclsion, what most vets don't tell is;After all that school, thay only get a week of education on nutrition. In PerdueUniversity Hills pet foods give it to them. This is a fact through out the US. Now a Holistic vet is a totally different story. In fact, Hills sometimes help pay for some Vets schooling, and we wonder why they push Hills product so much. So,Evo is very fine food, fact is, that it very Rich. Each dog is an indivisual.Wrether switching to, or currently on the food, we must remember U need to feed 15-30 percent less of it. And there is a product that will clean up loose stools or easy transiton. Its called EaglePack Holistic Solution, 2 or 3 tspoons, you'd be greatful.Also, no one food is the best for all pets. There are other great grain free pet foods out there.Heres a few:Taste of the Wild, Canidae Grain Free,Wellness Core,Natures Logic,Origen,FrommFamily Grain Free,Blue Buffalo Wlilderness,and HorizonLegacy. See what works for your dog,cat and particular breed. Some breeds do better on redmeat,some on poultry,and some on fish or pork, and some a combination or rotation. If U must have grains, oats, brown rice, barley and of such alike are more healthy and talerable grains, while some animals dont talerate them well. This is food for thought.