My A1C dropped so fast my doctor thought the lab made an error — my results so far

COA_Karl said:

PCOS success story with glycaemic control: as someone with polycystic ovary syndrome, this medication has been transformative beyond weight loss.

Complete metabolic panel trending on glycaemic control — sharing because comprehensive data helps everyone:

The insulin resistance improvement (HOMA-IR) is what my endo focuses on most. Going from 5.5 to near 1.0 is a metabolic transformation.

JakeSmashed95 said:

Fasting glucose improved within weeks and my HbA1c barely moved for three months, which I now understand and did not at the time.

Fasting insulin is the lab my functional medicine doctor cares about most for glycaemic control: it's a much earlier marker of metabolic dysfunction than glucose or A1C.

My fasting insulin: 28 → 14 → 6 uIU/mL over 9 months. Target is <7. By the time your fasting glucose is elevated, your insulin has been elevated for YEARS trying to compensate.

Ask your doctor to include fasting insulin in your bloodwork panel. It's cheap (~$20) and incredibly informative.

DanielChem_CHI said:

Complete metabolic panel trending on glycaemic control — sharing because comprehensive data helps everyone: Test Baseline Month 3 Month 6 Month 12…

Glycemic variability as the key metric for glycaemic control success: my coefficient of variation (CV) on CGM dropped from 37% to 19%. Target is <36%, with <30% being ideal.

Why this matters more than average glucose: large glucose swings cause oxidative stress, endothelial damage, and promote advanced glycation end-products (AGEs). A flat glucose line at 95 mg/dL is metabolically healthier than oscillating between 60 and 160, even if the average is the same.

One thing that is still open after matt_MKE’s answer:

Was that from a primary source or from a summary of one?

Dr.RheumBOS said:

Glycemic variability as the key metric for glycaemic control success: my coefficient of variation (CV) on CGM dropped from 37% to 19%.

My labs after 3 months on glycaemic control: A1C 5.0%, fasting glucose 75 mg/dL, fasting insulin 4 uIU/mL. My endo says these are "textbook perfect."

For context, my baseline A1C was 6.5% and fasting glucose was 110 mg/dL. The improvement has been dramatic and consistent.