Checking 2 hours postprandial blood glucose can eat steamed buns, about two taels of steamed buns. The 2-hour postprandial blood glucose is mainly used to check whether the functional role of insulin is normal, as well as to assess the effect of blood glucose regulation. The normal 2-hour postprandial blood glucose should be less than 7.8mmol/L. To check postprandial blood glucose, you can eat steamed buns, about two taels, or you can take glucose water and start timing from the first bite of the meal until two hours later to test the venous blood glucose value. In addition to the 2-hour postprandial blood glucose, the clinic usually also checks fasting blood glucose, glucose tolerance, glycated hemoglobin and other indicators to comprehensively assess the blood glucose level. It is recommended that patients take into account their actual situation and go to the hospital for the appropriate examination.