The blood glucose of diabetic patients should be controlled below 10mmol/L 2 hours after meal to be considered as meeting the standard blood glucose. In addition, fasting blood sugar, glycosylated hemoglobin, blood pressure, blood lipids and weight of diabetic patients should have corresponding standards. For example, fasting blood glucose should be controlled at 3.9mmol/L-7.0mmol/L, glycated hemoglobin at ≤7%, triglycerides at <1.7mmol/L. LDL should be controlled at 2.6mmol/L or less for patients without coronary artery disease and 1.8mmol/L or less for patients with coronary artery disease. The body mass index should be controlled at a level of <24kg/m2 and HDL should be >1.0mmol/L for men and >1.3mmol/L for women, and only when these standards are met can diabetes be effectively controlled and diabetes-related complications be prevented. The methods currently used clinically to treat diabetes include oral medication to lower glucose and treatment with insulin and insulin analogs.