Vitamin B6 Test
A B vitamin involved in protein metabolism, neurotransmitter synthesis, and immune function.
What is Vitamin B6?
A B vitamin involved in protein metabolism, neurotransmitter synthesis, and immune function.
Vitamin B6 Reference Range
These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.
| Population | Range |
|---|---|
| age 18+ | 20.0 – 125 nmol/L |
Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.
What your Vitamin B6 result may mean
Usually reflects supplement use. Excess can cause nerve damage at high doses.
Can reflect alcohol use, certain medications, or absorption issues.
Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.
Sources
Related Vitamins & Nutrients biomarkers
Markers commonly tested alongside Vitamin B6.
Frequently asked
No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor.
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