Shin, Sae-Ron, Han, A-Lum · Korean journal of family medicine · 2012 · DOI
This case report describes one patient whose chronic fatigue symptoms improved after receiving treatment to remove mercury from their body. The patient had eaten large amounts of raw tuna, which can contain mercury, and testing showed mercury levels in their hair that were higher than normal but below what's considered poisoning. After mercury removal therapy, the patient's fatigue got better.
This case raises an important clinical consideration: some patients with fatigue symptoms may have underlying mercury exposure that could be contributing to or mimicking ME/CFS. If validated in larger studies, screening for mercury exposure could identify a treatable subset of patients with chronic fatigue. However, the findings highlight the need for rigorous research to determine how often mercury exposure is actually relevant to ME/CFS pathology.
This single case report does not establish that mercury exposure causes ME/CFS or that it is a common underlying factor in the condition. Symptom improvement following treatment could reflect placebo effect, natural recovery, or unrelated concurrent changes. The study does not prove that mercury removal therapy is an effective treatment for ME/CFS in general populations, nor does it clarify whether this patient actually had ME/CFS or a mercury-related illness.
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
Shin, Sae-Ron & Han, A-Lum (2012). Improved chronic fatigue symptoms after removal of mercury in patient with increased mercury concentration in hair toxic mineral assay: a case.. Korean journal of family medicine. https://doi.org/10.4082/kjfm.2012.33.5.320
BibTeX
@article{mecfsatlas-shin-2012-improved-chronic,
author = {Shin, Sae-Ron and Han, A-Lum},
title = {Improved chronic fatigue symptoms after removal of mercury in patient with increased mercury concentration in hair toxic mineral assay: a case.},
journal = {Korean journal of family medicine},
year = {2012},
doi = {10.4082/kjfm.2012.33.5.320},
note = {PubMed: 23115707},
url = {https://www.mecfsatlas.com/evidence/shin-2012-improved-chronic},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-26. https://www.mecfsatlas.com/evidence/shin-2012-improved-chronic
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