Fact · Accessibility and health
A 2004 review of vitamin B6 sold without prescription warns that mega-doses of the vitamin may result in intoxication.
Checked against its source on October 17, 2026
In the source's own words
“Mega-doses of this vitamin may result in intoxication.”
Vitamin B6 (Pyridoxine)--excessive dosage in food supplements and OTC medications, N. Barak et al., Harefuah, 2004, Abstract.
Open the original- What it measures
- The review covers vitamin B6 sold as a supplement and over the counter, and notes that high intake is found in patients with carpal tunnel syndrome, among other conditions.
- What it does not show
- The English abstract does not give a dose threshold, and the article is in Hebrew. Read it as a warning about high doses, not as a safe limit.