Vitamin B6 · high result
What does a high Vitamin B6 mean?
Short answer
High vitamin B6 almost always comes from supplements — B-complex, energy drinks, 'nerve support' formulas and some multivitamins deliver many times the daily requirement — and matters because excess B6 can itself cause the nerve damage people take it to prevent: numbness and tingling in the feet and hands. Stopping the supplement is the treatment; levels fall within weeks.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
What is the normal range for Vitamin B6?
- age 18+: 20.0 – 125 nmol/L
Usually reflects supplement use. Excess can cause nerve damage at high doses.
Full reference table, citations and testing options: Vitamin B6 biomarker page.
What are the common causes of high Vitamin B6?
- B6 or B-complex supplements, energy drinks, fortified products
- Some 'hair, skin and nail' and 'nerve' formulations
- Rarely, blood disorders that raise circulating B6
What symptoms go with high Vitamin B6?
- Often none
- Tingling, numbness or burning in the feet and hands, unsteadiness when toxic
What do clinicians usually check next?
- Inventory every supplement and drink for pyridoxine content
- Stop the sources and retest in 6–8 weeks
- Neurological review if symptoms are present
How do you recheck Vitamin B6?
Prices are cash-pay; every order adds one $6 lab processing fee. Physician authorization is included; no insurance or referral needed.
| Test or panel | Type | Price | Fasting | Results |
|---|---|---|---|---|
| Vitamin B6 (Pyridoxine) | Test | $51.99 | No | 3–5 business days |
Common questions
How much B6 is too much?
The tolerable upper intake for adults is 100 mg/day; neuropathy has been reported with long-term intake above that and occasionally below it. Most people who test high are getting 50–200 mg a day from supplements or energy drinks without realizing it.
Sources
Educational content, not a diagnosis. Lab results are one input; a clinician interprets them with your history and exam.