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Evidence Explorer / Evidence record

BOTANICALS & NATURAL PRODUCTS

Medicinal mushroom extracts

Product-specific, uncertain applicability

Specific mushroom-derived preparations have been studied with standard cancer treatment; PSK has a clinical history as an adjunct in Japan.

MS-N005 · Sources checked October 11, 2026 · Adjunctive cancer-treatment research

What was studied?

People and setting: Product-specific studies, including PSK and reishi

Evidence basis: NCI evidence summary of clinical and preclinical studies

What can we conclude?

PSK, reishi, mushroom foods and retail blends are different exposures. Evidence for one cannot establish benefit for another or a stand-alone cure.

Safety and practical context

Check species, extract, quality and medicine interactions with the oncology team.

Questions for the care team

  • Does this evidence apply to my cancer, treatment and goal?
  • Does the exact preparation or delivery method match the study?
  • What benefit is plausible, what could go wrong, and what care must continue?

Sources

Connected reviews

Learn how to judge a study · Return to the evidence map

This is a concise evidence brief, not an exhaustive systematic review or a personal treatment recommendation. Evidence labels describe the named use; they are not formal GRADE ratings. A missing harm report does not establish safety.