What it measures
Beta-carotene is an orange plant pigment, found in foods such as carrots and leafy greens, that the body can turn into vitamin A. The test measures the level in the blood, which mainly reflects recent intake.
Why people test it
- Measured when poor absorption of fats is suspected, for example with coeliac disease.
- Looked at when the skin turns yellow-orange after large amounts of carrots or carotene supplements.
- Part of some nutrition panels covering the fat-soluble vitamins.
Typical range
Ranges vary by lab, method, age and sex, and your report shows the lab's own range. One NHS trust gives 0.19 to 0.89 µmol/L. Source: Worcestershire Acute Hospitals NHS Trust: Carotenoids.
Finger-prick or vein?
Taken from a vein. Providers offer it only as a vein draw, at a clinic or with a visiting nurse.