Dietary and nutrition interventions for the therapeutic treatment of chronic fatigue syndrome/myalgic encephalomyelitis: a systematic review. — CFSMEATLAS
Dietary and nutrition interventions for the therapeutic treatment of chronic fatigue syndrome/myalgic encephalomyelitis: a systematic review.
Campagnolo, N, Johnston, S, Collatz, A et al. · Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2017 · DOI
Quick Summary
Researchers reviewed 17 studies looking at whether diet changes and supplements could help ME/CFS symptoms like fatigue and quality of life. While a few interventions—including NADH, probiotics, and high-cocoa chocolate—showed promise for reducing fatigue, most studies did not find clear benefits. Overall, there isn't enough strong evidence yet to recommend specific diets or supplements as reliable treatments for ME/CFS.
Why It Matters
This review synthesizes the limited evidence on nutritional approaches for ME/CFS, an area where patients often turn to dietary interventions seeking symptom relief. Identifying which supplements (NADH, probiotics) show preliminary promise while acknowledging insufficient evidence helps guide both patient expectations and prioritizes areas for rigorous future research.
Observed Findings
Four interventions showed improvements in fatigue: NADH, probiotics, high cocoa polyphenol-rich chocolate, and combination NADH plus CoQ10.
Most nutritional interventions investigated (14 different ones across 17 studies) did not demonstrate therapeutic benefit on ME/CFS outcomes.
Studies were limited by small sample sizes, variable study duration, heterogeneous outcome measurement instruments, and incomplete reporting of dietary intake methodology.
Only 17 eligible studies were identified across three major databases over a 22-year period, indicating sparse research in this area.
Inferred Conclusions
Current evidence is insufficient to recommend nutritional supplements or dietary modifications as established treatments for ME/CFS.
While NADH, probiotics, and certain polyphenol-rich foods warrant further investigation, stronger evidence requires larger, well-designed studies with standardized protocols and homogeneous patient populations.
Future nutritional research in ME/CFS must employ rigorous methodology, longer follow-up periods, and consistent outcome measures to determine true therapeutic effects.
Remaining Questions
What are the mechanisms by which NADH, probiotics, and polyphenol-rich foods might reduce ME/CFS fatigue, and can these be validated in mechanistic studies?
Are there specific ME/CFS subgroups (based on symptom phenotype or biomarkers) more likely to respond to particular nutritional interventions?
What This Study Does Not Prove
This review does not prove that any specific diet or supplement effectively treats ME/CFS; the studies reviewed were generally small and methodologically variable. It also does not rule out nutritional approaches—rather, it demonstrates that current evidence is insufficient to make strong recommendations. The findings suggest potential rather than established efficacy and cannot determine causation or mechanisms.
Tags
Symptom:Fatigue
Method Flag:Weak Case DefinitionSmall SampleMixed Cohort
What optimal dosages, durations, and formulations of promising supplements are needed for adequate therapeutic trials?
How can future studies incorporate dietary assessment methods and standardized outcome instruments to enable meta-analysis and strong evidence synthesis?