Hospital Lab
$130
cash pay
Other Labs
$45
+ lab fees
TestWell
$22.99
+ $6 lab fee
Fasting insulin measures how much insulin your pancreas is producing to keep blood sugar in range. Elevated fasting insulin is one of the earliest signs of insulin resistance, often appearing years before glucose or A1c levels become abnormal. This makes it a valuable early-detection tool for Type 2 diabetes risk and metabolic syndrome.
Fasting insulin — the earliest marker of insulin resistance, often elevated 5-10 years before A1c rises. Paired with glucose to calculate HOMA-IR.
Anyone with central obesity, PCOS, family history of type 2 diabetes, fatty liver, or doing a metabolic optimization workup. The most sensitive single marker of pre-diabetes physiology.
Sample Type
Blood draw
Fasting
Required
Results In
2–4 business days
Performed At
Quest or Labcorp
Your Insulin, Fasting results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 2–4 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
Your Insulin, Fasting results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 2–4 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
Fasting for 8–12 hours is required. Water is okay.
Fasting for 8–12 hours is required. Water is okay.
Is a Insulin, Fasting worth it?
Our guide: at-home vs lab, cost, and how to read your results.
TestWell Price
$22.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Better value: the Diabetes Screening Panel
Save $9.98This test is part of the Diabetes Screening Panel — 3 tests · 3 biomarkers for $59.99, $9.98 less than à la carte.
$59.99$69.97
3 tests · 3 biomarkers
Frequently ordered together
Customers who ordered Insulin, Fasting also added these for a more complete health picture.
Not sure where to start?
Insulin, Fasting
$22.99