We had to switch over to Nutri Source a Lamb Meal & Rice mix. One of our dogs was allergic to the dog food we had been feeding him for years. It was a high energy sports mix from our local Coop. Our veterinary ran all kinds of tests & blamed it on the dog food. I checked with other people feeding the Coop., dog food & they had problems also with their dogs. The Nutri Source runs a dollar a pound but is worth it, the dogs eat less & poop less & are healthy.