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ForumsMetabolic Health & DiabetesInsulin sensitivity vs insulin secretion — my results so far

Insulin sensitivity vs insulin secretion — my results so far

mel_PDX Fri, Aug 30, 2024 at 7:37 AM 15 replies 1,850 viewsPage 1 of 3
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mel_PDX
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Dec 2024
Portland, OR
Aug 30, 2024 at 7:37 AM#1

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.

The question I want answered is why A1C lags the way it does, and what to look at in the meantime if you want to know sooner.

If the honest answer is that nobody knows, that is a useful answer and I would rather have it.

28 23Dr.NateNeph, PharmD_Rodriguez, julia.endo and 25 others
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Dr.PeteFamMed
Senior Member
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Jan 2024
Minneapolis, MN
Aug 30, 2024 at 8:45 AM#2
mel_PDX 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.

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

After 8 months: periods became regular for the first time in a decade, testosterone levels normalized, acne cleared significantly, and — unexpectedly — my fertility specialist is optimistic about future conception.

GLP-1 agonists address the insulin resistance at the root of PCOS. For PCOS patients, this isn't "just" a weight loss drug — it's treating our underlying metabolic dysfunction.

27 22tommy_boulder, hyun_seoul, jim_asheville and 24 others
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fiona_VT
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Vermont
Aug 30, 2024 at 9:53 AM#3
Dr.PeteFamMed said:
PCOS success story with glycaemic control: as someone with polycystic ovary syndrome, this medication has been transformative beyond weight loss.

Patient selection optimization for glycaemic control: emerging predictive biomarkers for GLP-1 agonist response include:

BiomarkerAssociationEvidence Level
Baseline BMIHigher BMI → greater absolute weight lossStrong
Fasting insulinHigher insulin → better responseModerate
GLP1R gene variantsrs6923761 → variable responsePreliminary
Baseline hsCRPHigher CRP → greater CV benefitModerate
Early weight loss (4 wk)≥3% at 4 wks → strong predictor of ≥10% at 68 wksStrong

The 4-week early responder criterion is the most clinically actionable: if you haven't lost ≥3% by week 4 at a therapeutic dose, discuss optimization strategies with your provider.

26 21jason_sac26, chris_chi24, tampaLisa73 and 23 others
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tampaLisa73
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Tampa, FL
Aug 30, 2024 at 11:01 AM#4
mel_PDX 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. The detail I would add is minor and it is already implied above.

25 20mike.trainer_LA, sarah_nash92, FitDadDave and 22 others
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Dr.ReproEndo
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Scottsdale, AZ
Aug 30, 2024 at 5:33 PM#5

Clinical perspective, offered as context rather than as advice.

My labs after 9 months on glycaemic control: A1C 5.0%, fasting glucose 85 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.

24 19carl_compliance, DanielChem_CHI, marco_milano and 21 others
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