Oxidative Stress May Contribute to Fibromyalgia Symptoms

More recent research suggests that oxidative stress—an imbalance between free radicals and antioxidant defenses—may play a role in how fibromyalgia patients experience pain.

A small study published in Redox Report (2006;11(3):131–135) compared 20 fibromyalgia patients with 20 healthy controls. Researchers found:

  • Higher total peroxide levels in the fibromyalgia group

  • A significantly elevated oxidative stress index

  • Lower total antioxidant capacity compared to healthy subjects

Importantly, the study noted a relationship between antioxidant status and pain levels. Patients who had lower antioxidant capacity reported greater pain on visual analog scales. This pattern is consistent with other findings showing that disruptions in cellular energy production, mitochondrial function, and redox balance may influence musculoskeletal pain and fatigue.

While this was a small study, and oxidative stress is only one piece of a very complex condition, the findings offer insight into why nutrient deficiencies—such as low magnesium—may worsen symptoms in some people.