Gray, J B, Martinovic, A M · Medical hypotheses · 1994 · DOI
This study proposes that ME/CFS may involve problems with how the body processes essential fatty acids—nutrients found in foods like fish and seeds. When stress is constant or too intense, the body's ability to use these fatty acids becomes sluggish, which can trigger ongoing immune system problems and exhaustion. The researchers suggest that changing your diet to better balance these fatty acids might help restore normal immune function and improve symptoms.
This work attempts to provide a unifying biochemical explanation for the complex and contradictory immune findings in ME/CFS (simultaneous activation and suppression). If validated, dietary interventions targeting EFA metabolism could represent a non-pharmacological, accessible treatment option that addresses a potential root mechanism rather than just symptoms.
This hypothesis paper does not prove that EFA dysfunction causes ME/CFS, only that it may be associated. The case series lacked controls, blinding, and objective outcome measures, so the reported 90% improvement rate cannot establish efficacy. No mechanistic data directly demonstrating altered EFA metabolism in ME/CFS patients is presented in the abstract, and correlation with immune abnormalities does not prove causation.
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
Gray, J B & Martinovic, A M (1994). Eicosanoids and essential fatty acid modulation in chronic disease and the chronic fatigue syndrome.. Medical hypotheses. https://doi.org/10.1016/0306-9877(94)90046-9
BibTeX
@article{mecfsatlas-gray-1994-eicosanoids-essential,
author = {Gray, J B and Martinovic, A M},
title = {Eicosanoids and essential fatty acid modulation in chronic disease and the chronic fatigue syndrome.},
journal = {Medical hypotheses},
year = {1994},
doi = {10.1016/0306-9877(94)90046-9},
note = {PubMed: 7968718},
url = {https://www.mecfsatlas.com/evidence/gray-1994-eicosanoids-essential},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-25. https://www.mecfsatlas.com/evidence/gray-1994-eicosanoids-essential
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