How much fasting blood sugar is normal?

For normal people, normal fasting blood glucose should be 3.9~6.1 mmol/L, but if diabetes patients, his normal fasting blood glucose is different. For younger diabetic patients, less than 60 years old, without some cardiovascular and cerebrovascular diseases, it is recommended to control fasting blood glucose to 4.4~8.0 mmol/L. If the patient is older, about 75 years old, you can relax the fasting blood glucose control target appropriately, about 9 mmol/L. If the patient is younger than 75 years old, and there are no complications, you also need to strictly control blood glucose, try to control the fasting blood glucose to less than 6.1 mmol/L.