Fasting insulin & HOMA-IR
Also known as:
Insulin resistance testing
A research measure of insulin resistance. Useful context, but not a diagnostic test.
Written and reviewed by Farhan Tahir, MD · Last reviewed
VIDEO LESSON
What it measures
HOMA-IR estimates insulin resistance from fasting insulin and glucose. Higher values suggest the body needs more insulin to keep glucose normal.
Limits
• Insulin assays are not standardized, so values differ between labs
• No universal cutoff defines insulin resistance
• Guidelines do not use it to diagnose or to choose treatment
What to use instead
Waist size, triglycerides, HDL, fasting glucose and A1c together give a practical picture of insulin resistance and guide treatment.
Key studies and references
Educational content only, written and reviewed by Farhan Tahir, MD. It does not replace individual medical advice. For sudden chest pain, trouble breathing or stroke symptoms, call 911.
AT A GLANCE
Test type
Blood sugar
Also known as
Insulin resistance testing
Reviewed by
Farhan Tahir, MD
Questions about your own care?
Dr. Tahir’s team offers consults through Youthful Medicine.
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Read the guide →