Fibromyalgia, Eating Disorders and Rehabilitation: The Nrf2 Link
Abstract
Background: Fibromyalgia (FM) and eating disorders (ED) represent distinct clinical entities traditionally managed within separate medical specialties, yet emerging evidence suggests significant comorbidity and potential shared pathophysiological mechanisms. Both conditions disproportionately affect women, involve complex multifactorial etiologies and substantially impair quality of life. Despite documented clinical overlaps, the mechanistic connections linking these conditions remain poorly characterized, and integrated treatment approaches are lacking.
Objective: This narrative review examines the role of oxidative stress and nuclear factor erythroid 2-related factor 2 (Nrf2) pathway dysfunction as a unifying molecular mechanism connecting fibromyalgia and eating disorders, with emphasis on implications for integrated rehabilitation strategies.
Methods: We synthesized current evidence on oxidative stress pathophysiology in fibromyalgia and eating disorders, focusing on Nrf2-Keap1 pathway function, clinical comorbidity patterns and rehabilitation interventions targeting antioxidant defense mechanisms. In PubMed, representative search strings included "(fibromyalgia [MeSH] OR fibromyalgia [Title/Abstract]) AND ("eating disorders" [MeSH] OR "anorexia nervosa" [MeSH] OR "bulimia nervosa" [MeSH])" and "fibromyalgia AND ("oxidative stress" OR Nrf2 OR "redox")". Articles in English published through December 2025 were considered, with additional records identified by manually…
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