Written from the studies on PubMed, searched on 11 Nov 2026. Every number below comes from a study listed under Sources.
What the studies found
We found no published scientific study on this claim.
We searched PubMed for omega 3, omega-3, fish oil, eicosapentaenoic acid, docosahexaenoic acid, icosapent ethyl together with Neuromyelitis optica (NMOSD).
What this means for you: There is no study to show whether it helps. Do not stop or change your medicines because of it. Ask your doctor before you start taking it.