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Public-ready6/29/2026

Vitamin B6

Papers analyzed
90
Menstrual and women's healthGlucose and metabolic health markersPain, headache, and migraine
What to look for in this research

Menstrual and women's health is the main area connected here, and any felt benefit should be read together with the human evidence base.

Main benefit evidence

Review human evidence by goal.

Women's health
Menstrual and women's health
Measured outcomes: Menstrual and women's health

Potential benefit studied in Women's health. These findings come from a defined study population, so everyday effects may differ.

Goal tierNot rated yet

No direct evidence for general supplement use is confirmed under the current standard.

Check this goal in more detail
Glucose and metabolic health
Glucose and metabolic health markers
Measured outcomes: Glucose and metabolic markers

This card is closer to a measured biomarker or lab outcome than a directly felt user benefit. These findings come from a defined study population, so everyday effects may differ.

Goal tierNot rated yet

No direct evidence for general supplement use is confirmed under the current standard.

Check this goal in more detail
Pain and headache
Pain, headache, and migraine
Measured outcomes: Pain, headache, and migraine

Potential benefit studied in Pain and headache. These findings come from a defined study population, so everyday effects may differ.

Goal tierNot rated yet

The currently linked research coverage is not broad enough to characterize this goal yet.

Check this goal in more detail
Stress and mood
Stress Response and Sleep Changes
Measured outcomes: Stress and mood balance

These findings come from stress response, cortisol, anxiety, or sleep outcomes. They may mix felt benefits with physiological markers.

Goal tierNot rated yet

The currently linked research coverage is not broad enough to characterize this goal yet.

Check this goal in more detail

What does a research result actually tell you?

Reading research

Side effects and combination findings in studies

Findings from studies of this ingredient alone are separated from findings involving another supplement or medication.

Caution signals
4
Side effects + combos + curated rules
Key precautions
No curated contraindication rule is available yet, but literature caution signals are shown below.
1 combo signals and 0 added-signal combos shown below.
These are signals reported in studies. They do not predict what will happen to an individual.

Findings to review with care

Side effects reported for the ingredient alone are separated from findings involving another supplement or medication.

Side effects reported when this ingredient was used alone

Symptoms or adverse events reported in studies of this ingredient without another active ingredient.

Plasma pyridoxal-phosphate, pyridoxal, pyridoxine concentrations1 papers
Daily supplementation with 50 mg pyridoxine or pyridoxal-phosphate for one week in 12 healthy volunteers showed significant increases in average plasma pyridoxal-phosphate and pyridoxal after 3 and 7 days, but large inter-individual differences in kinetics were observed, potentially explaining differences in sensitivity to vitamin B6 toxicity.Human studies · Observational study
Adverse effect signal1 papers
Chronic high-dose intake of Vitamin B6 (>1g/day) is reported to cause dose-dependent, often reversible sensory neuropathy.Human studies · Study type not identified

Caution signals when used with another supplement or medication

These studies reported a negative change, reduced absorption, or another caution when substances were used together. They do not predict an individual outcome.

IsoniazidInteractions with medications like isoniazid are mentioned as a cause of Vitamin B6 deficiency.
AntiepilepticsInteractions with certain antiepileptics are mentioned as a cause of Vitamin B6 deficiency.

Positive combinations studied

Positive combination findings are separated by how the study compared the groups. This is not a recommendation to combine them.

Positive findings when used together

The combination had a positive result, but the contribution of each ingredient could not be separated.

마그네슘In subjects with severe/extremely severe stress, the combination of magnesium and vitamin B6 resulted in a 24% greater improvement compared to magnesium alone (p=0.0203).
Vitamin B6
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