Health topic

Rectal Cancer

These are reviewed research connections, not a ranked list of remedies. An ingredient can appear here because evidence was uncertain, preclinical, or limited to a specific preparation and setting.

Ailment-to-evidence view

What the reviewed research points to

This order reflects the depth of the reviewed evidence, not which option works best or what anyone should take. Mixed and negative findings stay in the list because they can be more useful than a promising headline.

Deeper reviewed evidence Stronger human signal

Turkey Tail

The analysis pooled randomized evidence and measured clinical outcomes, while remaining limited to an older, specific treatment context.

Studied form
PSK added to postoperative fluoropyrimidine chemotherapy
Outcome
Five-year overall survival and disease-free survival after curative colorectal cancer surgery
Evidence
Individual-patient-data meta-analysis of three centrally randomized trials
See the evidence and cautions →
How this order is calculated

Evidence syntheses come before individual randomized trials, which come before early human and preclinical work. Sample-size bands add a small amount. Positive, mixed, negative, and safety-only directions do not change the depth score. Study independence is not yet scored, so overlapping reviews must not be counted as separate confirmation.

Connected ingredients

What appears in the current evidence map

Source-linked records

1 reviewed record

Evidence synthesis Stronger human signal 3 randomized trials, 1,094 participants

Adjuvant PSK after colorectal cancer surgery: meta-analysis

A pooled analysis of three Japanese randomized trials reported better five-year overall and disease-free survival when PSK was added to postoperative chemotherapy. The finding is specific to PSK as an adjunct in the studied regimens.

What was studied
PSK added to postoperative fluoropyrimidine chemotherapy
Setting
Studied with standard care
Why it ranks here
The analysis pooled randomized evidence and measured clinical outcomes, while remaining limited to an older, specific treatment context.
Limits and cautions
  • The chemotherapy regimens and clinical era differ from many current standards.
  • The evidence concerns a standardized PSK product rather than generic Turkey Tail supplements.
  • The analysis studied postoperative adjunct use, not stand-alone treatment.

PSK is not FDA-approved in the United States as a cancer treatment.