Pure oats should be tasteless without impurities. Oats are rich in starch, protein, fat, B vitamins, nicotinic acid, folic acid, pantothenic acid, calcium, iron and other nutrients, and have the effects of benefiting the liver and stomach, caring skin and so on. If you feel bad, you can add some seasoning, such as sugar or milk. Oat skin is bitter, and oatmeal made without special treatment is bitter.