The common oat (Avena sativa), is considered as a low-sugar, highly-nutritious, high-energy food. It ranks the fifth among the top 10 healthy foods chosen by the Times Magazine. It turns into oatmeal after finely processed, which is more convenient for consumption and which has a better flavor. It contains rich linoleic acid that assist in healing those diseases such as fatty liver, diabetes, edema and constipation, especially good for the elderly.