Dosage · Supplement
Vitamin B6: dosage and how to take it
10–25 mg/day; avoid chronic >100 mg.
- Overall grade
- Grade B
- Last revised
- 0
- graded outcomes
- 0
- references listed
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
The evidence in words
How much to take
10–25 mg/day covers supplemental needs; pregnancy nausea protocols use 10–25 mg a few times daily under care. Do not chronically exceed ~100 mg/day without reason.
Timing & separation
There are no strict timing conflicts on record for Vitamin B6; consistency matters more than the exact hour for most goals.
Why the dose is what it is
P5P is the coenzyme for transaminases and decarboxylases that build serotonin, dopamine, GABA, and heme, and that clear homocysteine via the transsulfuration pathway. Its neurotransmitter roles underlie its use in nausea and premenstrual symptoms.
Bottom line
Useful and cheap for pregnancy nausea and PMS at modest doses, and a homocysteine cofactor — but this is the water-soluble vitamin to not megadose, because sustained high intakes damage sensory nerves.
How it is used
As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.
- Standard
- 10–25 mg/day; avoid chronic >100 mg.
Goes with
- Vitamin B6Full Vitamin B6 monographEvidence grade B
Questions people ask
Is more better for mood?
No — and it's actively risky. Sustained high doses cause a sensory neuropathy. Stay near the requirement unless a clinician directs otherwise.
Related reading
Entries that share this one's tags or conditions.
- Choline: dosage and how to take it425–550 mg/day; more in pregnancy.Evidence grade B
- Folate (B9): dosage and how to take it400 µg folic acid daily, before and through early pregnancy.Evidence grade A
- Iodine: dosage and how to take itIodized salt / seafood; ~150 µg in pregnancy prenatals.Evidence grade B
- Vitamin B6 for HomocysteineEvidence grade B — With folate/B12Evidence grade B
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.