Related Compounds
Compounds connected by the same goals, effects, or research topics.
Herb Profile
Turkey Tail
Trametes versicolor
Turkey Tail (Trametes versicolor) is a shelf mushroom yielding two extensively studied polysaccharopeptides: PSK (krestin) and PSP.
Last reviewed: •3 sources citedReport a correctionProfile-wide ·C Limited
Use extra caution — Immune active mushroom extract; use caution with immunosuppressants, transplant medicines, autoimmune disease, and during active cancer treatment unless clinician supervised. Details
- Evidence
- Limited Evidence
- Typical onset
- Varies by prep
- Safety rating
- High caution
- Best for
- Immune, Inflammatory signaling
- Avoid / review if
- Pregnancy/Breastfeeding Without Clinician Supervision, Known Allergy To The Plant/Family, Potential Interaction Concern With Immunosuppressants
At a glance
From this profile's structured data- Evidence
- Grade C
- Safety
- Immune-active mushroom extract; use caution with immunosuppressants, transplant medicines, autoimmune disease, and during active cancer treatment unless clinician-supervised.
- Profile context
- immune
Next stepsWhere to go next — guides & comparisons
Continue reading
- If you want help sleeping → Sleep guides
- If you want to browse more herbs → All herbs
Safety
Safety & Cautions
Immune active mushroom extract; use caution with immunosuppressants, transplant medicines, autoimmune disease, and during active cancer treatment unless clinician supervised.
High caution
Caution level: High. Multiple caution categories apply, or the record uses avoid/contraindication language.
- Interaction-AwareMedication or interaction context is explicitly noted.
- Pregnancy/Breastfeeding CautionPregnancy or breastfeeding caution language is present.
Detailed safety fields
Pregnancy, breastfeeding, and contraindications
- Pregnancy/Breastfeeding Without Clinician Supervision
- Known Allergy To The Plant/Family
- Potential Interaction Concern With Immunosuppressants
- Use Clinician Review For High Dose Extracts Or Chronic Use.
Safety classifications
- Interaction-Aware: Medication or interaction context is explicitly noted.
- Pregnancy/Breastfeeding Caution: Pregnancy or breastfeeding caution language is present.
Full safety note
- Immune active mushroom extract; use caution with immunosuppressants, transplant medicines, autoimmune disease, and during active cancer treatment unless clinician supervised.
Safety labels
- Interaction-Aware
- Pregnancy/Breastfeeding Caution
Evidence
Evidence Summary
Evidence lens
Read as directional context, not settled clinical proof.
LimitedLimited Evidence
Human clinical evidence: Present in source signals
Mechanistic / preclinical: Mechanism mapped — Inflammatory Signaling Modulation · Immune Signaling Modulation · NF KB Modulation
Research maturity: Emerging research — Long Term Human Evidence May Be Limited.
Safety boundary: Safety note available — Immune active mushroom extract; use caution with immunosuppressants, transplant medicines, autoimmune disease, and during active cancer treatment unless clinician supervised.
This profile cites 3 human studies.
Study design details
Evidence Grade
Grade C: Limited Evidence
Evaluation of methodological rigor, population reach, and evidence alignment.
- Design Match
- Systematic review
- Risk of Bias
- Low
- Consistency
- Not assessed
Strongest recorded design is a systematic review, drawn from 3 recorded studies, 1 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 (3)1 human evidence source · 0 human trials · Participant totals not consistently reported · Consistency not yet classifiable
Filter by study class
Showing 3 of 3 studies.
What the evidence actually shows
This table contains 3 structured sources, including 1 human evidence source; 0 are human trials.
| Study | Design | N | Dose | Duration | Population | Outcome | Result & magnitude | Source |
|---|---|---|---|---|---|---|---|---|
Medicinal Mushroom Supplements in Cancer: A Systematic Review of Clinical Studies Narayanan S et al. · Curr Oncol Rep · 2023 Background | Systematic review Uses a predefined method to find and evaluate relevant studies, but may or may not pool their results statistically. | — | — | — | — | — | — | PubMed → |
Łysakowska P et al. · Molecules · 2023 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Medicinal Mushrooms (PDQ®): Patient Version PDQ Integrative, Alternative, and Complementary Therapies Editorial Board et al. · 2002 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Dosing & Timing
- No standardized dose
- Preparation specific; use standardized product label for Preparation varies by tradition and product form and require source backed dosage review before therapeutic claims.
How Turkey Tail works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Turkey Tail Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Mechanisms & biological pathways (preclinical)
- Inflammatory Signaling Modulation
- Immune Signaling Modulation
- NF KB Modulation
Compare related active botanicals
Explore botanicals with similar chemistry, effects, or safety considerations in the Botanical Activity Atlas.
Compare & Sourcing
Compare side-by-side tradeoffs or verify active marker guidelines.
Review available sources for Turkey Tail
Independent database mapping — evaluated separately from safety and efficacy scores.
Affiliate disclosure: Shopping links may earn this site a commission at no cost to you. Links are chosen on quality and availability, never commission tiers; safety warnings and evidence ratings stay independent.
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.
Help improve this profile
Was this useful for your research?
These controls record only the page and the structured choice you make when analytics consent is enabled. Please don’t include personal medical information in research requests.
Was this evidence summary clear?
Did you find what you were researching?
Free safety checklist
Get the Turkey Tail research notes
Evidence summaries, dosing context, and safety updates for this herb — straight to your inbox.
We use your email to send the checklist and occasional evidence-first supplement updates. Unsubscribe anytime. Privacy policy.