Eat a lot of dinner in the middle of the night or hungry, may be a peptic ulcer, may also be due to hyperthyroidism or diabetes. 1. Peptic ulcer: the reason for the occurrence of gastric acid in the gastric juice, pepsin, caused by the mucous membrane of the digestive tract damage, night time gastric acid secretion rises, stimulate intestinal peristalsis, accelerate gastrointestinal digestion and absorption of food, easy to appear in the middle of the night hungry. 2. Hyperthyroidism: the rise in thyroid hormone secretion will accelerate the body’s metabolism, sugar and fat and protein decomposition, increase calorie consumption, easily manifested as hunger in the middle of the night. 3. Diabetes: If you suffer from diabetes, it can cause more drinking, more urination, more food, easy to be hungry, weight loss of clinical manifestations, may appear to eat a lot at night, the middle of the night is still hungry. If you eat a lot of dinner in the middle of the night is still hungry, it is recommended to improve the relevant examinations in a timely manner to clarify the cause, follow the doctor’s instructions for intervention and treatment to avoid further aggravation of the condition.