Fasting Insulin
Fasting insulin is one of the earliest signals of insulin resistance β often rising years before blood sugar does. One quick blood draw, results usually in 1β2 business days.
Your pancreas releases insulin to move sugar out of your blood and into your cells. When cells stop responding well, insulin quietly climbs to compensate β a state called insulin resistance that can show up long before glucose or A1C ever look abnormal. A fasting insulin gives you an early look at that trend.
Included Tests
What This Panel Measures
Who Should Get This Panel
- You have a family history of type 2 diabetes or prediabetes
- You're carrying extra weight around the middle or struggle to lose weight
- You want an earlier warning than glucose or A1C alone provides
- You have PCOS or have been told you may be insulin resistant
- You're optimizing your metabolic health and want a fuller picture
Conditions Screened
Related Symptoms
When to Get Tested
Best measured fasting in the morning. Consider testing if you have risk factors for diabetes, are working on weight or metabolic health, or want to track insulin alongside fasting glucose over time.
Understanding Your Results
Results post to your secure online account usually in 1β2 business days, with your value and the normal range. Fasting insulin is most useful paired with fasting glucose β together they give a clearer view of insulin resistance than either alone. Retest over time to watch your trend as you make changes.
Frequently Asked Questions
Do I need to fast?
How is this different from a glucose test?
Is this billed to insurance?
Pairs Well With β Same Blood Draw
Test centers donβt accept payment β you pay securely here; the lab just does the draw.
What happens after you order?
- 1Your lab order form & test code appear in your secure online account β with your test centerβs address.
- 2We send your lab requisition to the test center electronically.
- 3Walk in & get tested β tests usually take 5 minutes or less.