Written based on 5 research studies on PubMed, searched on 13 Nov 2026.
The claim
Posts online say that omega-3 fatty acids (fish oil) helps with fibromyalgia.
Where research stands
We found 5 published papers on omega-3 fatty acids (fish oil) and fibromyalgia. They were published between 2000 and 2026. 1 of them is a study in people. 1 of them compared people who got it with a group that did not. 3 were studies in animals, and none was only in cells in the lab.
- 1In people1 with a comparison group
- 3In animals
- 0Only in the lab
What the studies found
We have not summed up these studies in words yet. The most important papers are listed under Sources.
Verdict
Omega-3 fatty acids (fish oil) has been tested in randomised trials in people with fibromyalgia.
What this means for you: A study in people is not proof that it helps you. Do not stop or change your medicines because of it. Ask your doctor before you start taking it.
Sources
- High-dose Omega-3 Alters Serum Magnesium and Calcium Levels and Affects Fibromyalgia Symptoms: A Randomized, Double-blind, Placebo-Control Study.2025 · Curr Rheumatol Rev · Randomised trial
- Eicosapentaenoic acid intake modulates programmed cell death protein 1 receptors to prevent chronic pain and comorbid depression in mice.2026 · Nutr Neurosci · In animals
- Eicosapentaenoic acid alleviates fibromyalgia-like pain by modulating microglia, astrocytes, and toll-Like receptor 4 signaling in the mice cerebellum.2025 · Nutr Neurosci · In animals
- Eicosapentaenoic Acid Modulates Transient Receptor Potential V1 Expression in Specific Brain Areas in a Mouse Fibromyalgia Pain Model.2024 · Int J Mol Sci · In animals
- Effect of omega-3 fatty acids in the management of fibromyalgia syndrome.2000 · Int J Clin Pharmacol Ther · Other paper
