
Written based on 2 research studies on PubMed, searched on 14 Nov 2026.
The claim
Posts online say that omega-3 fatty acids (fish oil) helps with cytomegalovirus infection.
Where research stands
We found 2 published papers on omega-3 fatty acids (fish oil) and cytomegalovirus infection. They were published between 2001 and 2022. 1 of them is a study in people. 1 of them compared people who got it with a group that did not. 1 was a study in animals, and none was only in cells in the lab.
- 1In people1 with a comparison group
- 1In 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 cytomegalovirus infection.
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
- Oral eicosapentaenoic acid for complications of bone marrow transplantation.2001 · Bone Marrow Transplant · Randomised trial
- Docosahexaenoic acid supplementation represses the early immune response against murine cytomegalovirus but enhances NK cell effector function.2022 · BMC Immunol · In animals


