Autoimmune diseases are severe inflammatory conditions, rheumatoid arthritis is one of them.

The body’s immune system starts to attack its own tissue which is a big problem. Decreasing the risk for that to happen would be a very big help.

The following study which went on for 5.3 years and included 25 871 participants divided into several groups and either supplemented with vitamin D 2000 IU per day, omega 3 fish oil 1000 mg per day, both vitamin D and omega 3 fish oil, or a placebo supplement (Hahn J,, 2021).


The results showed supplementation with both vitamin D and omega 3 fatty acids decreased autoimmune disease by about 30% compared to the placebo.

Rheumatoid arthritis incidence was approximately 40% lower in the supplementation groups than in the placebo groups.

Both supplementation with vitamin D and omega 3 fish oil individually was effective, but the combination of both worked the best.

Jill Hahn, Nancy R Cook, Erik K Alexander, Sonia Friedman, Joseph Walter, Vadim Bubes, Gregory Kotler, I-Min Lee, JoAnn E Manson, Karen H Costenbader Vitamin D and marine omega 3 fatty acid supplementation and incident autoimmune disease: VITAL randomized controlled trial, Clinical Trial BMJ. 2022 Jan 26;376:e066452.


  • Category: News
  • Author: Didrik Sopler, Ph.D., L.Ac.
  • Published: 2022-03-04
  • Comments: 0
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