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Tier-CPublic-ready6/25/2026

Vitamin B6

Stress Response and Sleep Changes is the main area connected here, and any felt benefit should be read together with the human evidence base.

Human evidence exists, but it is mostly in patient or disease contexts, so the score is handled conservatively.

Representative tier calculated from paper evidence that passed the collection audit.

Papers analyzed
76
Caution signal
Low
Representative score
56.9
Stress Response and Sleep ChangesMenstrual and women's healthGlucose and metabolic health markers

Main benefit evidence

The representative ingredient tier is calculated from these target-level evidence groups.

Stress and mood
1 studiesTier-C
Stress Response and Sleep Changes
Some positive signal observedFelt benefit focusPatient-group study

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

Evidence score
44.0
Study context
Patient-group study

This score reflects the strength of this benefit group. The ingredient tier also considers paper count, repetition, population, and study context.

Women's health
3 studiesTier-C
Menstrual and women's health
Fairly consistent positive signal in studiesFelt benefit focusPatient-group study

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

Evidence score
18.4
Study context
Patient-group study

This score reflects the strength of this benefit group. The ingredient tier also considers paper count, repetition, population, and study context.

Glucose and metabolic health
3 studiesTier-C
Glucose and metabolic health markers
Some positive signal observedResearch marker focusPatient-group study

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.

Evidence score
16.2
Study context
Patient-group study

This score reflects the strength of this benefit group. The ingredient tier also considers paper count, repetition, population, and study context.

Nutrient status and deficiency
1 studiesTier-C
Blood-Level or Deficiency Marker
Signal is still limitedResearch marker focusPatient-group study

This is based on lab markers such as blood levels, deficiency correction, or absorption. Read it separately from directly felt outcomes.

Evidence score
11.8
Study context
Patient-group study

This score reflects the strength of this benefit group. The ingredient tier also considers paper count, repetition, population, and study context.

Recent research

Updated This Month10 new papers

Key cautions to review

Standalone side-effect signals and combination cautions are listed separately.

Caution index
0.9
Caution band: Low
Caution signals
2
Side effects + combos + curated rules
Key precautions
No curated contraindication rule is available yet, but literature caution signals are shown below.
3 combo signals and 0 added-signal combos shown below.
Standalone side effects, combination cautions, and positive combos are separated below.

Standalone side effects

Neurotoxicity1 papers
Chronic high-dose intake of Vitamin B6 can cause dose-dependent, often reversible sensory neuropathy.human · systematic-review
Adverse effect signal1 papers
The review states that chronic high-dose intake (>1g/day) can cause a dose-dependent, often reversible sensory neuropathy.human · unknown

Combinations studied together

The group showed a positive signal, but individual contributions are hard to isolate. Not a stack recommendation.

+Vitamin B12A randomized, double-masked, placebo-controlled trial in 5,205 women at high risk of cardiovascular disease found that daily supplementation with folic acid, vitamin B6 (50 mg), and vitamin B12 significantly reduced the incidence of total age-related macular degeneration compared to placebo (RR 0.66, p=0.02).
+마그네슘In a subgroup analysis of 162 adults with severe or extremely severe stress, the combination of magnesium and vitamin B6 resulted in a 24% greater improvement in stress scores compared to magnesium alone (p=0.0203).
+CalciumA double-blind RCT of 76 students found that a combination of calcium (500mg) and vitamin B6 (40mg) twice daily significantly reduced premenstrual syndrome symptoms compared to vitamin B6 alone.

Evidence summaries

Paper IDs and full lists are private. Only study types and summaries are shown.

Key Evidence #1
Public scholarly dataCitation signal: 410
review

This review goes beyond the classical role of vitamin B6 as a cofactor to highlight new structural and regulatory information that further defines how the vitamin is synthesized and controlled in the cell.

Key Evidence #2
Public scholarly dataCitation signal: 224
review

The clinical and biochemical features of disorders leading to B6‐responsive seizures and the treatment of these disorders are described in this review.

Key Evidence #3
Public scholarly dataCitation signal: 175
observational

These randomized trial data from a large cohort of women at high risk of CVD indicate that daily supplementation with folic acid/B6/B12 may reduce the risk of age-related macular degeneration.

3 more summariesLimited representative sample by study type.
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Public scholarly dataCitation signal: 100
observational

The first animal model for PDE is reported, an aldh7a1-null zebrafish displaying deficient lysine metabolism and spontaneous and recurrent seizures in the larval stage (10 days postfertilization), which provides valuable insights into PDE pathophysiology.

Public scholarly dataCitation signal: 93
observational

Both low and high plasma PLP were associated with a significant suppression of molecular and histological markers of inflammation in the colon and, if confirmed, vitamin B6 supplementation may offer an additional tool for the management of IBD.

Public scholarly dataCitation signal: 85
observational

The phenotype, stress responses, vitamer levels, and regulation of the vitamin B6 pathway genes in Arabidopsis (Arabidopsis thaliana) plants mutant in PDX3 and SOS4 are determined.

Vitamin B6
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