What is the normal range for postprandial blood glucose levels?

Postprandial blood glucose usually refers to blood glucose levels after a meal, and its normal range should be viewed according to different population standards. In healthy individuals, blood glucose one hour after eating is generally between 6.7-9.4 mmol/L, and two hours after eating should be lower than 7.8 mmol/L.

For individuals with prediabetes, blood glucose one hour after eating may be close to or slightly higher than the upper limit for healthy individuals. Their two-hour postprandial glucose level often falls between 7.8-11.1 mmol/L (indicating impaired glucose tolerance), suggesting that the ability to regulate blood glucose has already become abnormal. Intervention via dietary control, increased physical activity and other measures is necessary. For patients with short disease duration, younger age, and no serious complications, stricter control to around 7.8 mmol/L may be appropriate.

For elderly patients, those with long disease duration, or those with severe complications, the target values can be appropriately relaxed to reduce the risk of hypoglycemia. It is important to note that postprandial blood glucose measurement must be performed correctly: timing starts from the first bite of food, and blood is drawn exactly two hours later. Before testing, one should eat according to daily habits, avoiding intentional dieting or overeating to accurately reflect actual blood glucose levels.

Regular monitoring of postprandial blood glucose helps evaluate the effectiveness of dietary and drug treatments, allowing timely adjustment of blood sugar control plans. In daily eating habits, it is recommended to maintain a balanced diet structure and diverse food intake, which helps maintain health.