Eating oatmeal for a long time is good for the body, but it is not recommended to eat oatmeal alone for a long time, and you should have a balanced and diversified diet daily. Oats are rich in carbohydrates and fatty acids, which can provide energy for the body, and moderate consumption will not increase the burden on the gastrointestinal tract. At the same time, oats are rich in linoleic acid is a fatty acid needed by the human body, to reduce cholesterol and blood lipids have a certain effect, moderate consumption is beneficial to cardiovascular health. Oats contain fiber, after entering the gastrointestinal tract, it can absorb the excess oil and water in the gastrointestinal tract, increase the sense of satiety and prolong the hunger time. In addition, the decomposition of carbohydrates in oats is very slow and does not easily cause dramatic fluctuations in blood sugar, which helps control diabetes and is suitable for diabetic patients. Dietary fiber in oats can promote gastrointestinal peristalsis, promote defecation, improve the symptoms of constipation, and shorten the residence time of feces in the intestine. However, for children, the elderly and people suffering from digestive disorders such as diarrhea should not eat too much oatmeal, so as not to cause indigestion, bloating and abdominal pain and other symptoms, thus hindering their health, and the daily diet should be accompanied by vegetables, fruits, meat, etc., to avoid eating a single diet, resulting in malnutrition.