cureality.com/blog Normal fasting glucose with high HbA1c by William Davis
Jonathan’s fasting glucose: 85 mg/dl His HbA1c: 6.7%
Jonathan’s high HbA1c reflects blood glucose fluctuations over the preceding 60-90 days and can be used to calculate an estimated average glucose (eAG) with the following equation:
eAG = 28.7 X A1c – 46.7
This is a common situation: Normal fasting glucose, high HbA1c. It comes from high postprandial glucose values, high values after meals.