Diabetic patients with fasting blood sugar 6.3mmol/L is relatively high, but not particularly high. In this case, it is recommended that it can be adjusted by diet and exercise first, and then closely monitor the change of blood sugar. Diabetic patients generally have a blood glucose of 6.0 is not too high, normal blood glucose is 3.9-6.1mmol/L, so diabetic patients with fasting blood glucose 6.3mmol/L can be controlled by diet, especially in the evening when eating, pay more attention to not eat a diet containing high sugar. If diabetic patients want to monitor blood sugar the next day, try to eat less starchy food, such as thin rice and noodles, on the first night, the blood sugar may be better controlled the next day. So blood sugar 6.3mmol/L is not too serious for diabetes, first of all, it is controlled by diet, if the diet is not well controlled, later it can be controlled by medicine and so on. If the control is good, monitor the blood sugar closely later, once in a while 6.3mmol/L can’t indicate the problem. Through a period of observation, if it continues to be the case, through dietary control, you can make the blood sugar a little lower and can reach the ideal range.