Fasting Insulin

MeasuredUsefulFasting needed

How much insulin your pancreas is producing at rest.

Mainly used to work out insulin resistance rather than to diagnose diabetes.

Calculated from this result

Once a lab has this measurement, these lines cost it nothing to add.

How we rate it: Useful

Worth doing for a specific reason: a risk factor, a symptom, an age group.

This rating and the description above were written against published screening guidelines by someone who is not a clinician, and are awaiting review by one. We would rather say that than imply an authority we do not have.

Check-ups that include it

In 12 of the 93 check-ups we track, 13%. Cheapest first.

Also sold as

Every one of these names refers to this same test. Resolving them to one canonical entry is what makes an honest comparison possible.

  • fasting insulin
  • serum insulin
  • insulin fasting

Information here is for comparing packages, not for diagnosing yourself. Talk to a doctor about which tests you actually need.