Oats are flat and sweet, and have the effect of filling the hunger and smooth intestines. Oats are generally not used as medicine, generally used for dietary therapy, used to cook porridge to eat. Oats have lowering blood sugar, laxative, calcium supplement, prolong life, whitening and removing spots, prevention of cardiovascular disease. For the lean, gastrointestinal function is weak, because oats low calorie, not easily digested and absorbed. However, constipation patients, diabetics, hypertension, hyperlipidemia, arteriosclerosis and fatty liver patients can prevent constipation to a certain extent.