Diabetic patients who experience nighttime hunger without symptoms of hypoglycemia such as panic, sweating, hand shaking, weakness, etc., can properly eat foods with low sugar content, such as pure milk, cucumber, tomato, water radish, etc. to fill up their hunger. If the patient appears night hunger with obvious panic, sweat, hand tremor, weakness and other symptoms of hypoglycemia, monitoring blood glucose is less than 6mmol/l can be appropriate to eat 15g of cookies, candies, but should not eat too much to avoid affecting the fasting blood glucose. At the same time, pay attention to find the cause of hypoglycemia is to eat less, or because of the drug oral intake is too large, if necessary, according to the specific circumstances of the adjustment of hypoglycemic program, to avoid recurrence of hypoglycemia.