EpiCor (dried yeast fermentate) and colds and flu

What 3 graded rows on epicor (dried yeast fermentate) agree on for colds and flu, and where they differ. Counted side by side, never averaged.

Consensus finder Rows from the EpiCor (dried yeast fermentate) page, reviewed Oct 21, 2026 How it decides

What the rows agree on

Each block and row is one graded row from the EpiCor (dried yeast fermentate) page, with its PubMed record.

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3 rows · 488 people

Split. 1 row found an improvement and 2 had mixed results.

Mixed

Improved

Each block is one evidence row, sized by how many people it enrolled, with its grade inside. Outlined: mixed results.

From the rows

The best-graded row, grade C, is a randomized trial of 256 people (2024) and reported mixed results.

The rows run from 116 to 256 people, published from 2008 to 2024: 3 single studies.

1 improved · 2 mixed

Grade CCold and flu-like symptoms in vaccinated adults · Improved
RCT · n 116 · 2008 · Healthy adults recently vaccinated for seasonal influenza
500 mg once daily · 12 weeks
Participants taking EpiCor had significantly fewer cold/flu-like symptoms and a shorter duration of symptoms than those on placebo.
Row on the EpiCor (dried yeast fermentate) page · PubMed 18335698 (opens PubMed)
Grade CCold and flu symptoms in children · Mixed
RCT · n 256 · 2024 · Children aged 4 to 12 attending school or daycare in Ontario, Canada, during the 2022-2023 flu season
500 mg per day · 84 days
Total symptom-severity scores, sore throat and muscle aches were lower with EpiCor during colds; placebo users were 1.73 times more likely to use cold/flu medicine. How often children had symptoms did not differ.
Row on the EpiCor (dried yeast fermentate) page · PubMed 38942887 (opens PubMed)
Grade CCold and flu-like symptoms in unvaccinated adults · Mixed
RCT · n 116 · 2010 · Adults with no recent seasonal influenza vaccination
500 mg once daily · 12 weeks
Fewer people had cold/flu-like symptoms (incidence p = 0.01); the shorter duration was not significant (p = 0.10) and severity did not differ (p = 0.90).
Row on the EpiCor (dried yeast fermentate) page · PubMed 20180695 (opens PubMed)