Turkey Tail for General immunity

Evidence grade C — Weaker

Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.

1 at grade C — 1 graded row

What is known

Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.

Outcome	Grade	Effect size	Agreement
General immunityWeaker	Evidence grade C	Small	low

Read off the same rows as above. Nothing here is added that the entry does not itself record.

For general immunity, Turkey Tail earns evidence grade C (small effect, low consistency) — the evidence is limited or mixed. Weaker

PSK/PSP are beta-glucan-protein complexes that stimulate immune responses against tumor cells.

Standardized PSK/PSP under medical supervision in oncology contexts.

Generally well tolerated.

The mushroom with real clinical oncology data (as an adjuvant, in specific cancers). OTC products vary; use under care for cancer support.

As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.

Entries that share this one's tags or conditions.

Astragalus for General immunityEvidence grade C — WeakEvidence grade C
Turkey Tail for Cancer survival (PSK adjuvant)Evidence grade B — Specific cancers, with chemoEvidence grade B
Astragalus for Chemotherapy side effects (adjunct)Evidence grade C — AdjunctiveEvidence grade C
Chaga for Immunity / antioxidant (humans)Evidence grade D — No trialsEvidence grade D

This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.

Last revised Jul 10, 2026. A grade is this entry's reading of the evidence, not medical advice.