HOMA-IR: Insulin Resistance Index
HOMA-IR calculates insulin resistance using fasting glucose and fasting insulin levels. It is a valuable tool for assessing prediabetes risk and metabolic syndrome. An overnight fast is required.
12 hours
Turnaround
Blood
Sample
What the HOMA-IR: Insulin Resistance Index test tells you
HOMA-IR is not measured; it is calculated. The laboratory takes two results from the same fasting sample — your fasting glucose and your fasting insulin — and combines them into a single index that estimates how hard your pancreas is having to work to keep your fasting glucose where it is. The reasoning is straightforward: if glucose is being held at an ordinary level only because insulin is running high, the tissues are clearly responding poorly to that insulin, and the index rises accordingly.
Insulin resistance matters because it usually precedes type 2 diabetes by years, sometimes by more than a decade. During that period fasting glucose can remain entirely unremarkable while the pancreas quietly compensates by secreting more and more insulin. HOMA-IR is one way of seeing that compensation while it is still working, which is exactly the window in which changes to diet, weight and physical activity have the greatest effect. It is also commonly used in the assessment of polycystic ovary syndrome, non-alcoholic fatty liver disease and the metabolic syndrome, where insulin resistance is central to the picture.
It should be read for what it is. The model came out of research rather than clinical diagnosis, and insulin assays are not standardised between laboratories, so an index generated in one laboratory is not directly comparable with one generated in another. It is best used as a trend within a single laboratory — a direction of travel across repeated tests — rather than as a verdict from any one result. Both inputs must come from a genuine fast, because a non-fasting insulin makes the calculation meaningless rather than merely imprecise.
Recommended for individuals with risk factors for type 2 diabetes (obesity, family history, PCOS, metabolic syndrome) to quantify insulin resistance before diabetes develops.
Insulin resistance typically develops years before fasting glucose moves, and this index is one way of detecting that compensation while it is still succeeding.
Both inputs come from the same blood draw, so a single fasting appointment produces glucose, insulin and the calculated index together.
Insulin resistance is central to polycystic ovary syndrome and to fatty liver disease, and the index gives a way of quantifying it during assessment.
Repeated within the same laboratory, it can show whether weight loss, exercise or medication is shifting insulin resistance in the right direction.
Reasons your doctor may request the HOMA-IR: Insulin Resistance Index test
Your doctor may order this test for any of the reasons below. Some are routine checks, others follow specific symptoms or an earlier result.
Risk factors with a normal fasting glucose
You have risk factors for type 2 diabetes such as excess weight, central obesity, or a strong family history, but a normal fasting glucose.
You have previously had glucose intolerance in pregnancy and long-term metabolic risk is being reviewed.
PCOS, fatty liver & metabolic syndrome
You are being assessed for polycystic ovary syndrome, where insulin resistance is often a driving factor.
You have non-alcoholic fatty liver disease, raised triglycerides, or other features of the metabolic syndrome.
Following a lifestyle programme
A weight, diet or exercise programme is under way and its metabolic effect is being followed.
Pick a morning slot online or on WhatsApp — come fasted per the prep note below.
A DHA-licensed nurse collects your sample at home or in the office — free home collection.
A physician-reviewed, easy-to-read report lands securely by WhatsApp and email.
HOMA-IR estimates insulin resistance from fasting glucose and insulin.
Ranges are a guide — your physician interprets your result alongside your symptoms and history.
What a higher result can point to
- Insulin resistance associated with excess body fat, particularly around the abdomen and liver.
- Polycystic ovary syndrome, in which resistance is common independently of body weight.
- Non-alcoholic fatty liver disease, which both results from and worsens insulin resistance.
- Medications that impair insulin action, including corticosteroids, some antipsychotics and certain antiretroviral drugs.
- Hormonal conditions such as Cushing's syndrome or acromegaly, where counter-regulatory hormones oppose insulin.
- An incomplete fast before the sample, which raises insulin and inflates the index artificially.
What a lower result can point to
- Good insulin sensitivity, common in lean and physically active people, which is the favourable end of the scale.
- Reduced insulin production, as in type 1 diabetes or long-standing type 2 diabetes with beta-cell exhaustion, where a low index does not indicate good health.
- Prolonged fasting, severe undernutrition or substantial recent weight loss.
- Adrenal or pituitary insufficiency, which lowers the hormones that oppose insulin.
- Medication that lowers insulin levels, or an assay that under-recovers insulin in someone receiving injected insulin.
These are possibilities, not diagnoses. A single value outside the reference range is interpreted alongside your symptoms, history and other tests — your doctor decides what it means for you.
What this test cannot tell you
- It is a calculation, not a measurement, and it was developed as a research tool for comparing groups rather than as a diagnostic test for individuals.
- Insulin assays are not standardised between laboratories, so an index from one laboratory cannot be compared directly with one from another; treat it as a trend within a single laboratory.
- Both inputs must come from a genuine fast — a non-fasting insulin makes the result meaningless rather than merely inaccurate.
- It is not interpretable in people taking insulin, because injected insulin is not distinguished from what the pancreas produces, and it is unreliable when insulin output is already failing.
Risks of the blood draw
- Mild bruising or brief soreness where the needle went in.
- Occasional lightheadedness, which settles after a few minutes of rest.
- Bleeding or infection at the site, which is rare with sterile single-use equipment.
- 1The index is calculated from fasting glucose and fasting insulin drawn in the same sample.
- 2A genuine overnight fast is essential; without it the calculation carries no meaning.
- 3It can highlight insulin resistance years before fasting glucose changes.
- 4Because insulin assays differ between laboratories, use it as a trend within one laboratory rather than a fixed verdict.
- 5It does not diagnose diabetes; that rests on glucose measurements and HbA1c interpreted by your doctor.
Frequently Asked Questions
Everything you need to know about the HOMA-IR: Insulin Resistance Index test. Can't find what you're looking for?
Talk to our team→No. It is a number worked out from two measured results — your fasting glucose and your fasting insulin — using a model that estimates how much insulin is needed to hold your fasting glucose steady. Nothing separate is measured for the index itself.
Because insulin assays are not standardised between laboratories, and different methods can return different insulin values on the same blood. Since insulin feeds directly into the calculation, the index inherits that variation, which is why it is most reliable as a trend within one laboratory.
No. It suggests your tissues are responding poorly to insulin, which is a risk state rather than a diagnosis. Diabetes is identified from glucose measurements and HbA1c, and your doctor uses the index as supporting information alongside them, not in place of them.
Usually it reflects good insulin sensitivity, which is favourable. But the index falls both when insulin works well and when there is little insulin left to work with, so in someone with long-standing diabetes or failing insulin production a low value is not reassuring and must be read alongside glucose results.
HOMA-IR calculates insulin resistance using fasting glucose and fasting insulin levels. It is a valuable tool for assessing prediabetes risk and metabolic syndrome. An overnight fast is required.
Recommended for individuals with risk factors for type 2 diabetes (obesity, family history, PCOS, metabolic syndrome) to quantify insulin resistance before diabetes develops.
Yes. We recommend fasting for 10-12 hours before your Insulin Resistance Index test; plain water is fine. Overnight fasting for 8–12 hours is required.
The Insulin Resistance Index test uses a blood sample, collected quickly by our DHA-licensed phlebotomist with minimal discomfort.
Results for the Insulin Resistance Index test are typically ready within 12 hours. You will receive a secure digital report, and your Smart Report highlights anything outside the normal range.
The Insulin Resistance Index test is AED 170, which includes free home sample collection and a physician-reviewed report. You can also build a custom panel and pay only for the markers you choose.
Yes. A DHA-licensed phlebotomist can collect your sample at home or the office anywhere in Dubai at no extra cost, 7 days a week. See how it works.
It is commonly chosen by adults at metabolic risk. If you are not sure it is right for you, our care team is happy to advise.
Add the Insulin Resistance Index test to your cart and complete the short booking wizard, choosing home collection or a lab visit. Guest checkout lets you book without creating an account.
Yes. It is processed at our EIAC-accredited laboratory (ISO 15189:2022) under DHA license 0046381 and verified by board-certified pathologists.
Every report includes reference ranges and plain-language notes. If you have questions, our care team can arrange a clinician review — just get in touch.
Absolutely. Add it to a curated health package or bundle it with any of our 160+ biomarkers, often from a single sample in one visit.