METS-IR estimates insulin resistance from fasting glucose, triglycerides, BMI and HDL, without needing an insulin assay.
METS-IR score
— index
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- Risk spectrum with your position marked
- Reference ranges from the original publication
- Shareable link, nothing stored
Scientific references
Why skip the insulin test
Insulin measurements vary between laboratories and are rarely ordered outside research. METS-IR combines four routine values to approximate the same biology, validated against the gold standard clamp technique.
Understanding your result
- Under about 41 suggests preserved insulin sensitivity
- 41 to 50 is a borderline zone where lifestyle change pays most
- Above 50 marks substantial insulin resistance
What drives it up
Visceral fat raises the triglyceride and BMI terms while lowering HDL, which is why the index tracks belly fat more than total weight.
Using the number
Treat it as a screening compass rather than a diagnosis, and pair it with waist size and fasting glucose trends over time.