Oat is a cereal cultivated mainly for its grains, which is used in the preparation of many foods, such as bread, cereals, flours and cookies. Oat is rich in protein, dietary fiber and nutrients such as iron, zinc and B vitamins. It is also a source of complex carbohydrates and minerals, such as calcium and potassium. Due to its high fiber and protein content, oats are considered a healthy and nutritious diet.