Clinical postprandial blood glucose measurement generally refers to 2-hour postprandial blood glucose, which is usually measured 2 hours after three meals. The blood glucose measured 2 hours after the first bite of food is the 2-hour postprandial blood glucose. For normal people, the 2-hour postprandial blood glucose level is generally no more than 7.8 mmol/L; for diabetic patients, the 2-hour postprandial blood glucose generally needs to be controlled below 10 mmol/L. If a normal person has a 2-hour postprandial blood glucose value of more than 7.8mmol/L, it is necessary to pay attention to the timely consultation by a professional doctor for clear diagnosis and treatment. If diabetic patients’ 2-hour postprandial blood glucose level exceeds the control target, suggesting that the blood glucose control is not good, you can consult a professional doctor to adjust the treatment plan. Postprandial blood glucose can be measured under the guidance of professional doctors.