This is all I will ever feed them now! I used to feed them HILLS, but hard food isn't enough to sustain ANY animal. Also, hard food is all carbs. Also, ever feel that Grease in dry food? Thats aninal fat sprayed into it to make it more inticing. Too much dry food and not enough water can give your little friend balder issues! I did a search and found this was one of the rated brandsas there are NO byproducts. When you hear, byproducts you're giving your little friend everything BUT the chicken itself.