Malaguarnera, Michele, Gargante, Maria Pia, Cristaldi, Erika et al. · Archives of gerontology and geriatrics · 2008 · DOI
Researchers tested whether a supplement called acetyl L-carnitine (ALC) could help reduce fatigue in older adults (over 70 years old) who met criteria for chronic fatigue syndrome. After treatment, patients showed meaningful improvements in physical tiredness, mental fatigue, sleep problems, and thinking ability. The supplement appeared to be safe and well-tolerated.
ME/CFS patients frequently report severe fatigue and cognitive impairment with limited effective pharmacological options. If replicated, ALC could represent a relatively safe, well-tolerated adjunctive intervention for symptom management in an aging ME/CFS population, particularly for post-exertional malaise and cognitive dysfunction.
This study does not establish whether ALC works in younger ME/CFS populations or in non-elderly subgroups with different disease severity. It does not clarify the biological mechanism of benefit, nor does it prove ALC is superior to other carnitine formulations or established non-pharmacological interventions. The lack of detailed protocol and outcome specification in the abstract limits assessment of potential bias.
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
Malaguarnera, Michele, Gargante, Maria Pia, Cristaldi, Erika, Colonna, Valentina, Messano, Masa, Koverech, Aleardo, et al. (2008). Acetyl L-carnitine (ALC) treatment in elderly patients with fatigue.. Archives of gerontology and geriatrics. https://doi.org/10.1016/j.archger.2007.03.012
BibTeX
@article{mecfsatlas-malaguarnera-2008-acetyl-carnitine,
author = {Malaguarnera, Michele and Gargante, Maria Pia and Cristaldi, Erika and Colonna, Valentina and Messano, Masa and Koverech, Aleardo and Neri, Sergio and Vacante, Marco and Cammalleri, Lisa and Motta, Massimo},
title = {Acetyl L-carnitine (ALC) treatment in elderly patients with fatigue.},
journal = {Archives of gerontology and geriatrics},
year = {2008},
doi = {10.1016/j.archger.2007.03.012},
note = {PubMed: 17658628},
url = {https://www.mecfsatlas.com/evidence/malaguarnera-2008-acetyl-carnitine},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-29. https://www.mecfsatlas.com/evidence/malaguarnera-2008-acetyl-carnitine
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