🍪 CompoundTalk uses cookies to improve your experience, analyze traffic, and personalize content. By continuing to use this site, you agree to our Cookie Policy.
Evidence-based GLP-1 & peptide discussion since 2023
ForumsMetabolic Health & DiabetesMy A1C dropped so fast my doctor thought the lab made an error — anyone have experience?

My A1C dropped so fast my doctor thought the lab made an error — anyone have experience?

dan_philly Sat, Feb 22, 2025 at 7:40 PM 12 replies 1,630 viewsPage 1 of 3
This thread is more than 15 months old. Information may be outdated. Consider searching for more recent discussions.
dan_philly
Member
456
2,123
Jul 2024
Philadelphia, PA
Feb 22, 2025 at 7:40 PM#1

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

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

Not looking for reassurance. Looking for the part I have got wrong.

23 18DadBodDave, AmyNC_wife, SkepticalSean and 20 others
Reply Quote Save Share Report
kate.chem
VIP Member
3,890
17,654
Dec 2023
California
Feb 22, 2025 at 8:51 PM#2
dan_philly said:
Fasting glucose improved within weeks and my HbA1c barely moved for three months, which I now understand and did not at the time.

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 = 1.5 (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.

22 17VanRx_Mike, steve_okc, dave_SLC and 19 others
Reply Quote Save Share Report
JennaRN
Senior Member
1,987
8,923
Mar 2024
Colorado
Online
Feb 22, 2025 at 10:02 PM#3
kate.chem said:
Insulin sensitivity test (HOMA-IR) on glycaemic control — arguably the most important metabolic marker most people aren't tracking: HOMA-IR = (fasting…

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

After 10 months: periods became regular for the first time in years, testosterone levels normalized, acne cleared significantly, and — unexpectedly — I got pregnant naturally after 4 years of trying.

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.

21 16BiostatsBrad, PeptideSynthNJ, Dr.KarenChen and 18 others
Reply Quote Save Share Report

Sigma-Aldrich — Research-Grade Standards

Certified reference materials, analytical reagents, and research-grade standards for peptide verification. Trusted by laboratories worldwide.

Shop Reference Standards
MikeKY_noInsulin
Member
267
1,234
Oct 2024
Louisville, KY
Feb 22, 2025 at 11:13 PM#4
dan_philly said:
Fasting glucose improved within weeks and my HbA1c barely moved for three months, which I now understand and did not at the time.

Adding a me-too, because a thread of one person's experience is not much use. Posting only so the count is not one.

20 15amy_econ_NJ, bbq_ray_KC, oliver_london and 17 others
Reply Quote Save Share Report
TrialNerd_Beth
Senior Member
2,345
11,234
Jan 2024
Bethesda, MD
Feb 23, 2025 at 6:02 AM#5

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: 26 → 12 → 7 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.

19 14SleepFixSam, PurityPaulOR, MaxMetOK and 16 others
Reply Quote Save Share Report

Similar Threads

SUSTAIN-6 to SELECT — the cardiovascular evidence timeline14 replies
GLP-1 and insulin resistance — HOMA-IR improvement data17 replies
Metabolic syndrome reversal criteria — how GLP-1 addresses all 55 replies
A1C target achievement rates — sema vs tirz comparison8 replies
SURPASS-CVOT: tirzepatide cardiovascular outcomes trial design3 replies
ForumsNewTrendingMembersAccount

Log In

Forgot password?
No account? Register