I knew a woman in her late forties who said her fasting and postprandial were well within the healthy range, not even pre-diabetes, but her a1c was over 8. How is that possible? That works out to an average blood sugar of about 190. I think her 2 hour postprandial was only about 110, fasting in the 80s.
Were her red blood cells just extra long lived? Also she said when she changed her lifestyle her a1c dropped to under 6, so there is that. I just don’t get how that is possible. It seems with her glucose readings no matter what she ate she’d rarely approach 190, let alone average out there.