Takahashi, Takashi, Yu, Fei, Zhu, Shi-Jie et al. · Evidence-based complementary and alternative medicine : eCAM · 2006 · DOI
Researchers gave mice a brewer's yeast extract to see if it could help restore activity levels in a mouse model of ME/CFS. Mice treated with the yeast extract showed significantly better activity levels compared to untreated mice, and the treated mice also had better survival rates. The study suggests that brewer's yeast extract may help by adjusting immune system responses that become imbalanced in ME/CFS.
This preclinical work provides mechanistic insight into how nutritional interventions may benefit ME/CFS by modulating dysregulated immune responses. If findings translate to humans, brewer's yeast extract could represent an accessible, oral therapeutic option for addressing post-exertional malaise and immune dysfunction.
This mouse model study does not prove that brewer's yeast extract will be effective in human ME/CFS patients, as animal models do not fully replicate human disease complexity. The study cannot establish optimal dosing, safety, or efficacy in humans. Findings suggest association between immune normalization and activity improvement, not definitive causation.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
The first block is for the primary paper and is the citation you should use in research work. The atlas-snapshot line only applies if you are specifically referring to this atlas’s reading of the paper on the date shown.
Primary citation
Takahashi, Takashi, Yu, Fei, Zhu, Shi-Jie, Moriya, Junji, Sumino, Hiroyuki, Morimoto, Shigeto, et al. (2006). Beneficial effect of brewers' yeast extract on daily activity in a murine model of chronic fatigue syndrome.. Evidence-based complementary and alternative medicine : eCAM. https://doi.org/10.1093/ecam/nek012
BibTeX
@article{mecfsatlas-takahashi-2006-beneficial-effect,
author = {Takahashi, Takashi and Yu, Fei and Zhu, Shi-Jie and Moriya, Junji and Sumino, Hiroyuki and Morimoto, Shigeto and Yamaguchi, Nobuo and Kanda, Tsugiyasu},
title = {Beneficial effect of brewers' yeast extract on daily activity in a murine model of chronic fatigue syndrome.},
journal = {Evidence-based complementary and alternative medicine : eCAM},
year = {2006},
doi = {10.1093/ecam/nek012},
note = {PubMed: 16550231},
url = {https://www.mecfsatlas.com/evidence/takahashi-2006-beneficial-effect},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-27. https://www.mecfsatlas.com/evidence/takahashi-2006-beneficial-effect
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