Insulin Resistance Testing
Insulin resistance is the earliest measurable stage of metabolic disease — and it typically develops for a decade before fasting glucose looks abnormal. At Integrated Wellness we test the signals that surface it early: fasting insulin, HOMA-IR, triglyceride-to-HDL ratio and real-world CGM patterns — read together inside your Digital Twin and turned into a physician-reviewed reversal protocol.
What is insulin resistance?
Insulin's job is to move glucose out of your blood and into muscle, liver and fat cells. When those cells stop responding, the pancreas compensates by producing more insulin — keeping glucose 'normal' while the underlying dysfunction compounds. That compensation phase is insulin resistance, and it can run silently for 10+ years.
Why does a normal fasting glucose miss it?
Because glucose is the last thing to break. Your pancreas can hold glucose in range for years by secreting two, three, five times the normal insulin. A fasting glucose of 92 with an insulin of 18 and a glucose of 92 with an insulin of 4 are completely different metabolic states — and only one of them shows up on a standard panel.
Which tests actually detect insulin resistance?
Fasting insulin is the single most revealing addition to a standard panel. From it we compute HOMA-IR (fasting insulin × fasting glucose), and cross-check with the triglyceride-to-HDL ratio — a strong lipid proxy for insulin resistance. Where indicated, a two-week CGM window shows how your real meals and stress move glucose.
See our graded evidence review of insulin resistance for the citations behind each marker.
Can insulin resistance be reversed?
In most cases, substantially — and sometimes completely. Resistance training builds the muscle that disposes of glucose; reducing visceral fat restores liver insulin sensitivity; sleep and stress work lower the cortisol pressure that raises glucose. The levers are known — what's usually missing is measurement and sequencing.
How does Integrated Wellness approach it?
Your insulin, glucose, lipid fractionation, body composition and CGM stream enter the Digital Twin, where the Matrix Engine grades severity and drivers. Your physician reviews the output and prescribes the sequence — nutrition architecture, training zones, sleep repair — then labs are retested at 12 weeks to verify the trend is bending.
Medically reviewed by: Dr. Michael Ellis, DO — Medical Director, Integrated Wellness Medical Center
Scientific/technical contribution: John Campetella — Founder & CEO
Last reviewed: June 2026
What fasting insulin level is optimal?
Most labs flag insulin only above ~25 µIU/mL, but metabolic health research generally treats single digits as the goal. Your physician interprets your number against glucose, body composition and context — not against the lab's disease cutoff.
Is HOMA-IR reliable?
It's a validated screening index, not a diagnosis. It's most useful tracked over time — the direction of your HOMA-IR across retests matters more than any single value.
I'm thin — can I still be insulin resistant?
Yes. 'TOFI' (thin outside, fat inside) patterns driven by visceral fat, low muscle mass or genetics are common — and are exactly the cases a glucose-only screen misses.
How fast can markers improve?
Fasting insulin and TG/HDL often move meaningfully within 8–12 weeks of consistent training and nutrition changes. We retest on that cadence so you see the curve bend.
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