No food or vegetable has a hypoglycemic effect, some foods and vegetables just have a low glycemic index, raise blood sugar slowly and have little fluctuation in blood sugar. Vegetables, such as cucumber, bitter melon, celery, spinach, cabbage, onions, etc.; fruits, such as kiwi, grapefruit, cherries, oranges, etc.; staple foods, buckwheat noodles, corn, brown rice, mung beans, etc., which contain dietary fiber, have a low glycemic index, raise blood glucose slowly, and have a small effect on blood glucose. Diabetic patients should strictly limit daily energy intake, low-salt, low-fat and low-sugar diets, small meals, with moderate exercise, to control blood glucose to the desired level. Patients with abnormal blood glucose or poor blood glucose control should go to the hospital and be treated under the guidance of a doctor.