Turkey Tail Mushroom (Trametes versicolor)
The most clinically studied medicinal mushroom, used alongside cancer treatment in Japan.
Also known as: Coriolus versicolor • Yun Zhi • Kawaratake
Overview
Turkey tail (Trametes versicolor) is the most extensively researched medicinal mushroom in the world. Its polysaccharide compounds PSK (Krestin) and PSP have been studied in over 400 clinical trials. In Japan, PSK is an approved adjunct cancer therapy covered by national health insurance. Turkey tail is rich in beta-glucans that powerfully modulate immune function.
Key Benefits
Immune Modulation
PSK and PSP powerfully enhance NK cell, T-cell, and macrophage activity.
Gut Microbiome
Prebiotic polysaccharides support beneficial gut bacteria diversity.
Adjunct Cancer Support
PSK is an approved adjunct therapy in Japan; improves survival rates in multiple cancer types.
Antioxidant
Contains phenols and flavonoids with strong antioxidant activity.
Dosage & How to Take
1000-3000 mg daily.
| Purpose | Dose | Notes |
|---|---|---|
| General immune support | 1000-2000 mg/day | Hot water extract |
| Therapeutic/cancer adjunct | 3000 mg/day | Under medical supervision |
Best Time to Take
Before meals on empty stomach.
With or Without Food
Best on empty stomach.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Hot Water Extract Capsules | High | Beta-glucan extraction | Most common and well-studied form. |
| Dual-Extracted Tincture | Good | Full spectrum | Hot water + alcohol. |
| Powder | Good | Adding to beverages | Can be mixed into tea or coffee. |
Side Effects & Safety
Common
- Generally very well tolerated
Rare
- Mild GI discomfort
- Darkened stools
Contraindications
- Autoimmune conditions (immune stimulation)
- Organ transplant recipients
Interactions
May counteract immunosuppressive therapy.
May enhance effects (consult oncologist).
Scientific Research
PSK and cancer survival
Meta-analysis showed PSK significantly improved 5-year survival rates in gastric and colorectal cancer patients.
Food Sources
Products With Turkey Tail Mushroom (Trametes versicolor)
1 product in our database contains this ingredient
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.