Duodenitis diet should pay attention to light and easy to digest, avoid overeating, and develop good eating habits. 1. Light and easy to digest: patients usually try to avoid eating spicy and irritating food and cold food, otherwise it may cause irritation to the duodenal mucosa, resulting in aggravation or triggering the onset of the disease, pay attention to a light diet, eat more vegetables and fruits. 2. Avoid overeating: duodenitis patients, try to avoid eating too full, but also can not fasting time is too long, can easily lead to discomfort symptoms, to avoid overeating, should eat small meals. 3. Develop good eating habits: patients should eat regularly. In addition, patients with duodenitis must actively cooperate with the doctor’s medication, and regular review.