Fasting blood glucose 6.5mmol / L, if the postprandial blood glucose is not high, has not reached the standard of diabetes, can be through active control of diet, lifestyle intervention, increase exercise, etc., may be able to return to normal, it is recommended that according to their own situation under the guidance of the doctor treatment. 1. Diet control: control the total calories, low-salt, low-fat, low-sugar diet, you can eat more coarse grains, fresh vegetables and other foods rich in fiber, you can also eat low glycemic index fruits. 2. Intervene in lifestyle: to develop good habits, avoid smoking, drinking, staying up late, etc., which is conducive to maintaining the stability of the body’s metabolism and ensuring that blood glucose is in a stable state. 3. Increase exercise: Do more exercise, such as jogging, brisk walking, etc., for about 45 minutes at a time, 3-5 times a week, which helps to consume calories and lower blood sugar. Fasting blood glucose 6.5mmol/L, it is recommended to be treated under doctor’s guidance.