Related Compounds
Compounds connected by the same goals, effects, or research topics.
Compound Profile
Vitamin D3
May support depressive symptoms in some adults, especially short term and likely status context dependent.
Use extra caution — Safety evidence: excessive vitamin D3 can cause persistent hypercalcemia or hypercalciuria; risk depends on dose, duration, calcium intake, disease context, and measured vitamin D and calcium status. Details
Last reviewed: •1 source citedReport a correctionProfile-wide ·D Preliminary
At a glance
From this profile's structured data- Evidence
- Grade D
- Safety
- Safety evidence: excessive vitamin D3 can cause persistent hypercalcemia or hypercalciuria; risk depends on dose, duration, calcium intake, disease context, and measured vitamin D and calcium status.
- Profile context
- vitamin D receptor
Quick stats
- Evidence level
- Preliminary evidence
- Typical onset
- Varies by prep
- Safety rating
- Use extra caution: Use caution
- Best for
- Vitamin D Receptor
- Avoid / review if
- Hypercalcemia Or Vitamin D Toxicity, High Dose Use In Conditions That Increase Calcium Without Clinician Monitoring.
Safety
Safety & Cautions
Standard caution
Caution level: Standard. No specific caution categories were detected in the source record.
- Safety evidence
- excessive vitamin D3 can cause persistent hypercalcemia or hypercalciuria; risk depends on dose, duration, calcium intake, disease context, and measured vitamin D and calcium status
- Who should avoid this?
- Hypercalcemia Or Vitamin D Toxicity; High Dose Use In Conditions That Increase Calcium Without Clinician Monitoring.
- Talk to a professional if
- you are pregnant or breastfeeding, you have a condition named in this safety summary.
High-dose use, kidney disease, granulomatous disease, pregnancy, and interacting medicines require clinician review.
Evidence Summary
Profile-wide ·D PreliminaryEvidence lens
Early signal that needs stronger human replication before practical claims.
PreliminaryPreliminary evidence
Human clinical evidence: Present in source signals
Mechanistic / preclinical: Mechanism mapped — Neurotransmitter Modulation · Immune Signaling Modulation · Hormonal Signaling Context
Research maturity: Preliminary research — Early findings are not treated as established consumer benefit.
Safety boundary: Safety note available — Safety evidence: excessive vitamin D3 can cause persistent hypercalcemia or hypercalciuria; risk depends on dose, duration, calcium intake, disease context, and measured vitamin D and calcium status.
This profile cites 1 human study.
Evidence Strength
Confidence estimate based on the design quality and consistency of published clinical trials.
Vitamin D3 has a preliminary evidence rating.
General wellnessGeneral wellness
Citation density
1.0
Sources
1
Effects
1
Research recency
Mixed recency
Evidence Grade
Grade D: Preliminary / Theoretical Evidence
Evaluation of methodological rigor, population reach, and evidence alignment.
- Design Match
- Meta analysis
- Risk of Bias
- Low
- Consistency
- Not assessed
Strongest recorded design is a meta analysis, drawn from 2 recorded studies, 2 in people.
How evidence grades work
Each grade reflects the strength and consistency of published human evidence — not marketing claims. Grades are based on study count, design quality, effect size, consistency, and recency.
- Strong
- Multiple RCTs, consistent direction, adequate effect size
- Moderate
- Some RCTs or consistent observational data in humans
- Preliminary / Mixed
- Animal or in-vitro only, or conflicting human data
- Traditional / Theoretical
- Traditional use only; no controlled human trials
Clinical Study Summaries (1)1 human evidence source · 0 human trials · ~24,189 participants across 1 human evidence source with reported N · Consistency not yet classifiable
What the evidence actually shows
This table contains 1 structured source, including 1 human evidence source; 0 are human trials. Across 1 human evidence source with a reported sample size, the approximate participant total is 24,189; overlapping publications may include some of the same people.
| Study | Design | N | Dose | Duration | Population | Outcome | Result & magnitude | Source |
|---|---|---|---|---|---|---|---|---|
Ghaemi et al. · Psychological Medicine · 2024 Background | Meta-analysis Statistically combines results from multiple eligible studies; confidence still depends on the quality, consistency, and directness of those studies. | n=24189 | — | — | — | — | — | PubMed → |
How Vitamin D3 Works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Vitamin D3 Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Dosing
- Dose guidance
- Vitamin D3 supplementation; adult depression/anxiety RCT meta analysis. Dose response paper modeled per 1000 IU/day; do not recommend high doses without biomarker/medical context.
Mechanisms & biological pathways
Preclinical mechanism details from scientific profiles; these represent plausible pathways but do not guarantee clinical efficacy in humans.
- Neurotransmitter Modulation
- Immune Signaling Modulation
- Hormonal Signaling Context
Guides that use Vitamin D3
Condition guides
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Compare & Sourcing
Compare side-by-side tradeoffs or verify active marker guidelines.
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Tradeoffs
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Sourcing options
Vitamin D product picks
Recommendation status
Product recommendations are not shown for this profile because the current site safety and monetization policy does not permit them.
Product form & quality guidelines
When sourcing Vitamin D3, verify the label for:
- Standardized Extract: Confirm active content percentages on the supplement facts panel (e.g. standardized to specific marker compounds) rather than simple raw herb weights.
- Third-Party Testing: Look for independent purity labels (USP, NSF, ConsumerLab, or Eurofins) to ensure the product is free from heavy metals, solvents, and contaminants.
- Form Bioavailability: Ensure the form matches evidence-supported configurations (e.g. chelated bisglycinate/glycinate for magnesium, micronized monohydrate for creatine) for optimal onset and digestion tolerance.
Safety first · Harm reduction
This information is educational and not medical advice. Start low, avoid risky combinations, and consult a licensed clinician before making health decisions—especially if you use medications, have diagnosed conditions, or are pregnant/breastfeeding.
Learn how we evaluate confidence, safety, and intensity on the methodology page.
Editorial Review
Checked against primary sources, cited evidence, and contraindication language before publication. Evidence claims, safety language, and affiliate modules are reviewed independently. Not personal medical advice.
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