Information about Grain-Free Pet Food.
The grain-free trend originated with raw diets as many proponents of raw food studied evolutionary dietary habits of our companions' wild ancestors and decided that grains were unnecessary. While wolves and wild dogs may graze a bit on greens periodically, most of their nutrition comes from meat including organ meat and the stomach and intestines of their prey which contain small amounts of partially digested grasses and other vegetation. No processed grains. In the wild, cats eat only meat and the very tiny amount of grain or vegetable matter a mouse or bird stomach might contain. So why is grain in most pet foods? Basically, because it is a less expensive source of nutrients and energy than meat, and because something has to hold a dry food together.