Garlic contains many beneficial substances and has certain health effects, but there is no evidence that it can be used to lower blood sugar. Once suffering from diabetes, patients should follow the “five horsemen” of diabetes to carry out treatment. 1. diet therapy: the overall control of daily calorie intake, carbohydrates, fats and proteins are clearly defined; 2. exercise therapy: appropriate exercise, appropriate exercise can increase the sensitivity of peripheral tissues to insulin and achieve the effect of lowering blood glucose; 3. medication: after diet and exercise therapy, the patient should be able to take care of the blood glucose. achieve the effect of lowering blood sugar; 3. Drug therapy: After diet and exercise therapy, if blood sugar is still at a high level, patients need to be treated with drugs under the guidance of doctors, including oral hypoglycemic drugs, insulin and herbal medicine. The use of glucose-lowering drugs is very wide and there are many drugs used, including sulfonylurea promoters, non-sulfonylurea promoters, biguanide hypoglycemic drugs, glycosidase inhibitors, and common insulin, etc.; 4. Blood glucose monitoring: regularly monitor blood glucose, such as blood glucose levels before meals, after meals and at bedtime, to prevent blood glucose from being too high or too low, in order to provide a basis for adjusting the treatment plan; 5. Health education: actively promote knowledge about diabetes, so that people can understand more about diabetes and keep a good attitude to prevent or control the disease. Garlic is only a condiment, although the allicin contained in it may have a certain effect on lowering blood sugar, but there is no clear clinical trial to support it, and the amount of allicin contained in garlic is very limited, and garlic may also stimulate the stomach and intestines to cause other discomforts if you eat too much, so in general, garlic does not lower blood sugar. Diabetic patients must be treated formally and not follow it blindly to prevent delaying the treatment, which is detrimental to their condition.