Vitamin B6
Vitamin B6 is a high-risk supplement with an RDA of 1.7 mg and a tolerable upper intake level (UL) of 100 mg per day according to NIH/NASEM standards. CNS lists a RDA of 1.4 mg and a UL of 60 mg. It has 1 known interaction with other supplements including magnesium. Regular monitoring is strongly recommended when adjusting your intake.
Quick take
Vitamin B6 sits in the B Vitamins category. This page consolidates 4 regional standards, and the limits vary enough that you should not treat one region's rule as universal.
It also has 1 known interaction, so the question is not just the label dose but whether the rest of your stack adds extra risk.
Taking multiple supplements? Check Vitamin B6 for overlap
If Vitamin B6 appears on two product labels, enter each daily amount and check the combined label total.
Check Vitamin B6 across my supplementsFree. No account required.
Overdose Risk Warning
Very high vitamin B6 for long periods can cause nerve-related symptoms.
Regional Reference Values
| Region | Organization | RDA | Upper Limit (UL) | Unit |
|---|---|---|---|---|
| 🇺🇸 United States | FDA | 1.7 | 100 | mg |
| 🇪🇺 Europe | EFSA | 1.7 | 100 | mg |
| 🇦🇺 Australia | TGA | 1.7 | 100 | mg |
| 🇨🇳 China | 中国营养学会 | 1.4 | 60 | mg |
RDA = Recommended Daily Allowance (adequate intake for most adults). UL = Tolerable Upper Intake Level; some authorities have not established one.
Known Interactions
Vitamin B6 and magnesium work synergistically (positive interaction).
Taking together may enhance effectiveness.
How to use this page
First match your product label against the dose table above, then check whether the known interaction list includes anything in your current stack.
If you are taking multiple supplements, the safest approach is usually to audit the whole stack instead of judging a single bottle in isolation.
Frequently Asked Questions
How much Vitamin B6 is too much?
FDA lists a formal upper limit (UL) of 100mg per day for Vitamin B6. Other regions may use a different value or have no established UL.
What is the recommended daily dose of Vitamin B6?
The RDA for Vitamin B6 is 1.7mg per day for most adults. This amount is sufficient to meet the needs of 97-98% of healthy individuals.
Does Vitamin B6 interact with other supplements?
Yes, Vitamin B6 has 1 known interaction with other supplements. Vitamin B6 and magnesium work synergistically (positive interaction).
Are you taking Vitamin B6?
Check if your supplement stack keeps Vitamin B6 within safe limits.
Audit My SupplementsDisclaimer: NutriAudit is a decision-support tool designed to help you review your supplement stack for potential duplicate, conflicting, or excessive ingredients. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making changes to your supplement routine, especially if you are pregnant, nursing, taking medications, or have a medical condition.
Uses cited public reference data where the current dataset has a verified entry.