Substance reference

Vitamin B6

Vitamins EFSANIH ODS / IOM-DRI (NASEM) 15 products in Stacky

What the European Food Safety Authority and the United States National Institutes of Health have published about vitamin B6 intake, and what the catalogue records. Reference figures and citations only.

Stacky is an organisational tool, not a medical device. It does not provide medical advice, and nothing on this page says what vitamin B6 does. Talk to a doctor or pharmacist before starting, stopping or changing what you take.

Published intake references

Each figure is one authority’s published value, with the kind of figure and the people it applies to as that authority stated them. Where the EU and the US differ, both are shown and neither is averaged or converted. Only a tolerable upper intake level sets a ceiling. A recommended or adequate intake is context, not a limit.

European Union — EFSA

Recommended daily intake (RDA / PRI) 1.6 mg adult females 18+ EFSA →
Recommended daily intake (RDA / PRI) 1.7 mg adult males 18+ EFSA →
Tolerable upper intake level 12 mg adults 18+, total intake from all sources (EFSA NDA Panel, 2023). Superseded the earlier SCF value of 25 mg/day. Derived from a reference point of 50 mg/day with an uncertainty factor of 4 (12.5 mg/day), tabulated by EFSA as 12 mg/day. Critical effect: pe…Our record of this statement is cut short; the authority’s document has it in full. EFSA →

United States — NIH ODS / IOM

Recommended daily intake (RDA / PRI) 1.3 mg adults 19-50, both sexes NIH ODS / IOM-DRI (NASEM) →
Recommended daily intake (RDA / PRI) 1.5 mg adult females 51+ NIH ODS / IOM-DRI (NASEM) →
Recommended daily intake (RDA / PRI) 1.7 mg adult males 51+ NIH ODS / IOM-DRI (NASEM) →
Tolerable upper intake level 100 mg adults 19+, total intake from all sources NIH ODS / IOM-DRI (NASEM) →

How it is recorded

What the app records so it can schedule a dose. None of it is advice.

Forms recorded: Capsule.

Recorded interactions

What a named source says about vitamin B6 taken alongside another substance: absorption and nutrient status only. Each row links to its source. A row without one is not published, and neither is one whose source description names a disease or clinical condition. None of these says whether a combination is good or bad.

RelationshipWhat the source saysSource
Documented relationship with Vitamin B2 Converting vitamin B6 to its active coenzyme form, pyridoxal 5'-phosphate, requires FMN, which is made from riboflavin. Low riboflavin status therefore affects how much vitamin B6 is available in its active form. NIH ODS
Checked 6 Aug 2026
Increases absorption or status of Vitamin B3 The enzymes that convert tryptophan into niacin depend on vitamin B6. People who do not get enough vitamin B6 convert less tryptophan to niacin. NIH ODS
Checked 6 Aug 2026

Indexed studies

Stacky has 5 papers indexed against vitamin B6, and none of them is published here. A study reaches this page only if its own title names Vitamin B6 and does not name a disease or clinical condition. None of the 5 passes that rule. They remain in the app. How this list is built →

About this page

Stacky is a supplement tracking app. It renders what you take and what published sources say about it; it does not tell you what to take. Every figure on this page names the authority that published it and links to that authority’s own page.

Not on this page: a dose of our own, a grade, a verdict on whether vitamin B6 works, or any statement that it treats, prevents or improves a condition. How these pages are built →

Figures are read from the authorities’ published tables and can go out of date when those tables are revised. If one here is wrong, tell us at support@stacky-app.com and we will check it against the source.