Effects of Vitamin B6 on Mood and Anxiety
McCarty MF
Published in Medical Hypotheses
Abstract
Review examining vitamin B6's role in neurotransmitter synthesis and its potential effects on mood and anxiety disorders.
Methodology
Theoretical hypothesis article synthesising biochemical and preliminary clinical literature on vitamin B6 and monoamine/GABA neurotransmitter synthesis.
Key Findings
Hypothesis paper proposing that vitamin B6 as pyridoxal-5-phosphate is rate-limiting for synthesis of serotonin, GABA and dopamine, and that supplementation could therefore improve mood and anxiety, particularly in premenstrual syndrome and in people with poor B6 status or oestrogen-related B6 depletion.
Conclusions
The mechanistic case for vitamin B6 affecting mood is plausible but this is a hypothesis article, not clinical evidence; controlled trials show only modest effects, mostly in premenstrual syndrome.
Limitations
Speculative hypothesis paper in Medical Hypotheses with no systematic review, no original data, no risk-of-bias assessment and no peer-reviewed clinical validation; high-dose B6 also carries peripheral neuropathy risk.
Supplements Studied
Hypothesis paper proposing that vitamin B6 as pyridoxal-5-phosphate is rate-limiting for synthesis of serotonin, GABA and dopamine, and that supplementation could therefore improve mood and anxiety, particularly in premenstrual syndrome and in people with poor B6 status or oestrogen-related B6 depletion.
Related Health Concerns
Study Details
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Disclosures
Funding
None reported
This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.