Maric, Daniela, Brkic, Snezana, Tomic, Slavica et al. · Medical science monitor : international medical journal of experimental and clinical research · 2014 · DOI
This study tested whether taking a multivitamin and mineral supplement could help women with ME/CFS feel better. Thirty-eight women took the supplement for 2 months, and researchers measured changes in fatigue, sleep, headaches, and other symptoms. Most symptoms improved notably, including less fatigue and better sleep, though overall quality of life scores did not change.
Many ME/CFS patients use multivitamin supplements based on the hypothesis that oxidative stress contributes to disease pathogenesis. This study provides preliminary evidence that supplementation may reduce specific symptom clusters—particularly fatigue, sleep dysfunction, and autonomic symptoms—which are core disability drivers in ME/CFS. Understanding safe, accessible interventions that target underlying mechanisms could improve patient outcomes and quality of life.
This study does not establish that multivitamin supplementation is effective for ME/CFS broadly, as it lacks a placebo control and uses only subjective symptom measures vulnerable to bias. The improvement in SOD activity does not prove this enzyme change caused symptom reduction; correlation does not establish causation. Results cannot be generalized beyond reproductive-age women and do not identify which specific vitamins or minerals were responsible for any benefit.
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 →
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