Is the one-hour postprandial blood glucose level clinically significant?
Disease description:
After being diagnosed with diabetes, my doctor advised me to monitor my blood glucose level one hour after meals. However, I’m reluctant to perform this test and would like to know whether measuring blood glucose one hour after meals is clinically meaningful.
Doctor's answer (1)
Dr. Pan Yongyuan
In the diagnosis and management of diabetes, monitoring fasting plasma glucose (FPG) and 2-hour postprandial glucose (2h-PPG) is particularly important, providing clinicians with more accurate data for disease assessment. Diabetes is typically diagnosed when FPG exceeds 7.0 mmol/L or 2h-PPG exceeds 11.1 mmol/L. In contrast, for patients with gestational diabetes mellitus (GDM), monitoring 1-hour postprandial glucose (1h-PPG) is especially critical, as it detects glycemic fluctuations earlier and facilitates timely adjustment of treatment strategies. For non-pregnant individuals, however, 1h-PPG holds relatively limited clinical significance; therefore, routine management should focus primarily on monitoring FPG and 2h-PPG.
