Effective ways to lower blood sugar include combined treatment with diet, exercise and medication. 1. Dietary control: daily energy intake should be controlled, small and frequent meals, reasonable combination of carbohydrates, proteins and fats, balanced diet, low-salt and low-fat diet, avoiding greasy and fried foods as well as foods with high sugar content such as cakes and sweet sodas. 2. Reasonable exercise: Proper exercise is conducive to weight loss and increases insulin sensitivity. It is recommended to exercise moderately, including swimming, jogging, brisk walking, yoga, etc. However, the exercise should not be excessive, and it is important to exercise moderately and persistently. 3. Medication: including metformin, glimepiride, gliclazide, acarbose, miglitol, etc., which should be used regularly under the guidance of a doctor. Patients with high blood sugar or diabetes should go to the hospital and be treated under the guidance of a doctor.