Fish Oil, Vitamin E, and Inflammatory Signaling (Preclinical Research)

Animal research has shown that omega-3 fatty acids may reduce inflammatory signaling, potentially helping explain their observed benefits in inflammatory conditions.

In a study led by Jaya Venkatraman, PhD, at the University at Buffalo and published in the Journal of the American College of Nutrition, researchers examined genetically altered mice prone to accelerated aging, immune dysfunction, and autoimmune disease. These mice had elevated levels of pro-inflammatory cytokines—proteins that drive joint swelling, pain, and tissue damage.

When the mice were fed a diet containing fish oil combined with vitamin E, blood levels of pro-inflammatory cytokines were significantly reduced compared to mice fed a standard diet. The findings suggest that omega-3 fatty acids, particularly when protected from oxidation by vitamin E, may help modulate inflammatory immune responses.

The authors noted that while human trials have shown benefits from omega-3 supplementation, this study helps clarify a possible biological mechanism behind those effects.

This was an animal study and does not establish clinical efficacy in humans, but it supports existing research on omega-3 fatty acids and inflammation.