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Turkey tail

Trametes versicolor · 云芝

Mushrooms. Chinese Medicine.

Also called Yun zhi, Coriolus versicolor, Kawaratake, Cloud mushroom

Pinyin: Yún Zhī

Spanish: Cola de pavo

May affect immune drugs

A thin, colorful bracket fungus that grows on dead wood and is studied mainly for immune support.

Did you know? Its name comes from its striped rings of brown, blue, gray and cream, which look like the tail of a wild turkey.

What it may help, and how strong the proof is

  • Colds, flu & immunity. Small trials, mostly in people getting cancer treatment, suggest possible immune help. The results are mixed and the trials are small.
    Early proof
  • Digestion & gut health. Some small studies suggest it feeds helpful gut bacteria. More and better human trials are needed.
    Traditional proof

Parts of the body

Immune system, Gut & intestines, Stomach

Traditional use

Chinese and Japanese practitioners have used turkey tail for generations to support the body during illness. Its modern use grew from research in cancer care.

How it is classified

Herbal actions
Immune balancer, Antioxidant, Prebiotic. Energy: neutral.

How people take it

Usually a capsule, powder or hot-water extract. Studied doses vary, and most store products are not standardized.

Tea, powder, capsule and tincture.

Where to get it

Grows on dead hardwood logs and stumps across much of the world. Sold as dried mushroom, powder, capsule and extract, often made from mycelium grown on grain.

Be careful

Usually mild, with upset stomach or loose stools. Rare allergic reactions are possible. Turkey tail may affect the immune system, so use caution with immune-suppressing drugs. Not studied in pregnancy.

Avoid if: pregnancy; breastfeeding; autoimmune disease; mushroom allergy.

Mixing with other things

  • Use caution
    Immune-suppressing medicine (transplant drugs, some arthritis drugs)

    Immune-boosting effects may work against drugs that suppress the immune system.

The honest take

The strongest human research on turkey tail uses purified extracts (PSK and PSP) given with chemotherapy in Japan and China, not store powders. Those trials are mixed and do not prove that turkey tail treats cancer. Store products are often not standardized, so the amount you get is unclear.