Chudzik, Michał, Burzyńska, Monika, Kapusta, Joanna · Nutrients · 2022 · DOI
This study tested whether a supplement called 1-MNA (a natural compound made in the liver) could help people recover better from COVID-19 fatigue. Fifty people who had recovered from COVID-19 either received the supplement or no supplement for one month. Those taking 1-MNA walked further in a walking test and reported less severe fatigue than those without it.
For post-COVID and ME/CFS patients struggling with exercise intolerance and severe fatigue, identifying potential nutritional interventions with anti-inflammatory properties could offer accessible supportive treatment options. This study directly addresses a major symptom cluster in post-acute sequelae of COVID-19 and provides preliminary evidence that may inform future larger trials and clinical management strategies.
This study does not prove that 1-MNA is effective in ME/CFS patients with other etiologies, only in post-COVID populations within a 4-week window. The mechanism by which 1-MNA improves outcomes remains inferential; the observed benefit may reflect placebo effect, natural recovery trajectory, or other unmeasured confounders. A single small trial cannot establish 1-MNA as a standard treatment recommendation without replication in larger, longer-term studies.
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
Chudzik, Michał, Burzyńska, Monika, & Kapusta, Joanna (2022). Use of 1-MNA to Improve Exercise Tolerance and Fatigue in Patients after COVID-19.. Nutrients. https://doi.org/10.3390/nu14153004
BibTeX
@article{mecfsatlas-chudzik-2022-use-mna,
author = {Chudzik, Michał and Burzyńska, Monika and Kapusta, Joanna},
title = {Use of 1-MNA to Improve Exercise Tolerance and Fatigue in Patients after COVID-19.},
journal = {Nutrients},
year = {2022},
doi = {10.3390/nu14153004},
note = {PubMed: 35893858},
url = {https://www.mecfsatlas.com/evidence/chudzik-2022-use-mna},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-25. https://www.mecfsatlas.com/evidence/chudzik-2022-use-mna
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