High blood glucose after dinner is the only one of the three meals, which is generally considered to be related to a variety of factors such as diet, exercise and medication. If you often consume high sugar and high fat foods at dinner, or lack of exercise after eating too much at dinner, you may also use inappropriate hypoglycemic drugs before dinner. 1. Diet: Desserts, steamed buns, fish and meat and other high-fat, high-carbohydrate, high-calorie foods are often consumed at dinner, resulting in elevated blood glucose, so it is not easy to eat too much fat and carbohydrates at dinner. 2. Exercise: If dinner is too full and lack of exercise, glucose is not converted to glycogen, the body’s utilization of sugar is insufficient, resulting in elevated blood sugar. After dinner, you can take a walk to strengthen the exercise, so as to lower the blood sugar. 3. Drugs: The improper use of hypoglycemic drugs before dinner leads to weakening of blood glucose control after dinner, triggering disorders in blood glucose regulation, and therefore elevated blood glucose. Patients need to use drugs such as metformin according to the doctor’s professional guidance and follow the doctor’s instructions. If the blood glucose is high after dinner and accompanied by obvious clinical symptoms, the patient should consult a doctor in time to identify the cause of the disease so as to provide targeted treatment.