The oat, sometimes called the common oat, is a species of cereal grain grown for its seed, which is known by the same name. While oats are suitable for human consumption as oatmeal and rolled oats, one of the most common uses is as livestock feed.
Whole grains are a much better source of fiber and other important nutrients than refined grains are. Examples of whole grains include brown rice and popcorn.Oatmeal, too, is a whole grain. In fact, oats are one of the few well-known grains that almost never has its bran and germ eliminated during processing.
Bottom Line: Oats are high in the soluble fiber beta-glucan, which has numerous benefits. It helps reduce cholesterol and blood sugar levels, promotes healthy gut bacteria and increases feelings of fullness