Fasting Insulin Blood Spot Test Kit | Detect Insulin Resistance at Home
Uncover whether your body is producing too much insulin — a key early warning sign of insulin resistance, metabolic dysfunction, and cardiovascular risk. Our at-home dried blood spot test delivers LCMS-accurate results with specialist interpretation, no clinic visit required.
Test ID: B-207 | Results in 3–5 working days | PhD Doctor analysis included
Who Is This Test For?
This test is ideal if you are experiencing any of the following:
- Persistent hunger or cravings, even after eating
- Unexplained fatigue or low energy
- Frequent urination or extreme thirst
- Tingling in hands or feet
- Frequent infections
- Concerns about diabetes progression or cardiovascular risk
Not sure if your symptoms point to insulin resistance? Read our guide: Early Warning Signs of Insulin Resistance You Shouldn’t Ignore
What This Test Measures
Your fasting insulin level is one of the most sensitive early markers of metabolic health. This test measures:
- Fasting insulin (μIU/mL) — optimal range: 1–8 μIU/mL; normal range: 1–15 μIU/mL
- Indicators of insulin resistance — even before glucose intolerance appears
- Pancreatic beta cell function and insulin regulation
- Risk markers for insulinoma, type 2 diabetes, and cardiovascular disease
How It Works
- Order your kit — delivered to your door
- Collect your sample — a simple finger-prick blood spot, taken within 1 hour of waking (fasting)
- Post to our lab — using the prepaid materials included
- Receive your results — within 3–5 working days, in graphical and numerical formats
- Expert review — a Hormone Specialist PhD Doctor provides personalised commentary and next-step guidance
Why Dried Blood Spot Testing?
- Minimally invasive — just a simple finger prick, no needle or clinic required
- Stable samples — dried blood spots withstand temperature variation during postal transit
- Cost-effective — no additional lab fees; everything is included in the kit price
- Clinically accurate — advanced laboratory techniques deliver reliable, reproducible results
- Trackable over time — ideal for monitoring insulin levels across multiple tests
Learn more: Insulin Resistance & Dried Blood Spot Testing Explained
What Is Insulin?
Insulin is a hormone produced by the pancreatic beta cells that regulates blood glucose. It acts as a “key” allowing glucose to enter cells for energy. When cells stop responding to insulin effectively, the body compensates by producing more — leading to chronically elevated insulin levels, weight gain, fatigue, and increased disease risk.
Catching elevated fasting insulin early — before blood glucose rises — gives you the best opportunity to reverse insulin resistance through lifestyle changes.
Related Tests You May Also Need
Insulin doesn’t work in isolation. If you’re concerned about metabolic health, consider pairing this test with:
- CardioMetabolic & Cortisol Test Kit — assess cortisol-driven metabolic stress alongside insulin
- Female Weight Management Profile Test — hormones, thyroid & metabolism for women
- Male Weight Management Profile Test — hormones, thyroid & metabolism for men
Important Information
- Use within 12 months of purchase
- Customers are responsible for posting samples to the laboratory
- Laboratory fee is included — no hidden costs
Why We Partner with ZRT Laboratory
At Hormone Lab UK, all laboratory testing is performed by ZRT Laboratory, a globally recognised CLIA-certified diagnostic and research laboratory specialising in hormone and functional health testing since 1998. Founded by renowned biochemist and breast cancer researcher Dr. David Zava, PhD, ZRT is internationally respected for its scientific innovation, accuracy, and commitment to personalised healthcare.
With more than 11 million tests performed and healthcare professionals in over 96 countries relying on its expertise, ZRT provides advanced testing for hormones, thyroid, fertility, adrenal function, neurotransmitters, cardiometabolic health, vitamin D, heavy metals, and wellness assessments.
ZRT pioneered at-home saliva hormone testing, was the first laboratory to commercialise dried blood spot (DBS) hormone testing, and developed Dried Urine Testing (DUTS), helping make advanced laboratory diagnostics more convenient and accessible.
Using advanced LC-MS/MS and ICP-MS technology, combined with rigorous quality standards, ZRT delivers highly accurate and clinically reliable results. The laboratory’s commitment to research, personalised reference ranges, and quality assurance—including qualification for the CDC Hormone Standardization (HoSt) Program for testosterone and estradiol testing—has established ZRT as one of the world’s most trusted names in hormone and wellness diagnostics.
Through our partnership with ZRT Laboratory, Hormone Lab UK provides customers across the UK and Europe with access to internationally recognised, research-backed laboratory testing designed to support better health decisions.
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