My father does not have diabetes. However, today his fasting glucose was 121 mg/dL, and his postprandial blood sugar (PPBS) was 88 mg/dL. Is this a concern? Why is the PPBS lower than the fasting glucose? How should we proceed? His HbA1c is 6.2 percent

Answered by 1 Apollo Doctors

Dr Ezhilarasan Ml

General Practitioner

MBBS
6+ Yrs

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A fasting sugar of 121 and HbA1c of 6.2 percent indicates prediabetes, even if PPBS is lower. PPBS can be lower due to light meal or higher insulin response. It is important to control diet and maintain a healthy weight. Begin morning walks, reduce sugar and rice intake. Repeat Fasting Sugar, PPBS, and HbA1c after 3 months to check progress. Medication may not be needed now if lifestyle is well managed.

Dr. Ezhilarasan Suggests...

Take a HbA1c Test (Hemoglobin A1c) Test or Take a Fasting & PP Blood Sugar with Smart Report Test

Book HbA1c Test (Hemoglobin A1c) Test Book Fasting & PP Blood Sugar with Smart Report Test

Answered 15/09/2025

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