I feed Iams to my dog. Have ever since she was a puppy. Tried switching her and she either doesn’t like other brands or gets upset stomach from them. I also switched my cats to Iams and now they don’t throw up all the time from eating too much too fast. I’m sure there are all kinds of things in many kinds of dog and cat foods out there. If she had it her way she’d be eating deer carcasses from our woods.