What is the normal postprandial blood glucose level?

Postprandial blood glucose generally includes blood glucose levels at 1 hour, 2 hours, and 3 hours after a meal. The blood glucose ranges vary depending on the time after eating.

The normal range for blood glucose 1 hour after a meal is 6.7-9.4 mmol/L. For elderly individuals, this range may be slightly relaxed, not exceeding 11.1 mmol/L. The normal value for blood glucose 2 hours after a meal is 3.9-7.8 mmol/L and is the primary measurement index for postprandial blood glucose. If the blood glucose level falls between 7.8-11.1 mmol/L, it may indicate impaired glucose tolerance, which can be a precursor to diabetes. Blood glucose levels 3 hours after a meal typically return gradually to fasting levels, with a normal range of 3.9-6.1 mmol/L.

It should be noted that postprandial blood glucose is influenced by multiple factors, including dietary composition, physical activity, and insulin sensitivity. Therefore, when monitoring postprandial blood glucose, these variables should be considered, and appropriate dietary and lifestyle adjustments should be made under the guidance of a healthcare professional. Additionally, blood glucose ranges may differ for special populations, such as pregnant women. If there are any concerns or abnormal blood glucose readings, it is recommended to seek medical advice promptly.