A1C went from 7.4 to 5.6 over nine months and my prescriber was more interested in the fasting insulin, which I did not expect.
Because it is glucose-dependent, this class carries a low intrinsic hypoglycaemia risk on its own — the risk arrives when it is combined with insulin or a sulfonylurea, which usually need reducing.
What would genuinely help is knowing why A1C lags the way it does, and what to look at in the meantime if you want to know sooner.
Numbers rather than impressions, if you have them.
ricardo_MIA said:A1C went from 7.4 to 5.6 over nine months and my prescriber was more interested in the fasting insulin, which I did not expect.
My labs after 12 months on glycaemic control: A1C 6.4%, fasting glucose 94 mg/dL, fasting insulin 9 uIU/mL. My endo says these are "textbook perfect."
For context, my baseline A1C was 8.3% and fasting glucose was 139 mg/dL. The improvement has been dramatic and consistent.
Dr.AddMedPHL said:My labs after 12 months on glycaemic control: A1C 6.4%, fasting glucose 94 mg/dL, fasting insulin 9 uIU/mL.
Insulin sensitivity test (HOMA-IR) on glycaemic control — arguably the most important metabolic marker most people aren't tracking:
HOMA-IR = (fasting insulin × fasting glucose) ÷ 405
My numbers: Baseline HOMA-IR = 6.1 (insulin resistant) → Current = 1.1 (insulin sensitive)
Anything above 2.0 indicates insulin resistance. The goal is below 1.5. GLP-1 agonists address the root metabolic dysfunction, not just the symptoms. This is why they work so much better than calorie restriction alone.
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Shop Reference Standardsricardo_MIA said:A1C went from 7.4 to 5.6 over nine months and my prescriber was more interested in the fasting insulin, which I did not expect.
This matches mine closely enough to be worth saying so out loud. I had assumed I was the exception until I read this.
Clinical perspective, offered as context rather than as advice.
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: 30 → 12 → 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.