Mixed
Dietary omega-3 polyunsaturated fatty acids (EPA, DHA, ALA) modulate gut microbiota composition by increasing beneficial bacteria (Bifidobacteria, Lactobacilli, Akkermansia) and decreasing pathogenic or pro-inflammatory bacteria (Enterobacteria, Firmicutes-to-Bacteroidetes ratio), thereby improving intestinal barrier function and reducing systemic inflammation.
To support gut health and reduce inflammation, ensure adequate intake of omega-3 fatty acids (EPA and DHA) through diet (fatty fish) or supplementation. This helps increase beneficial gut bacteria like Bifidobacteria and reduces harmful bacteria, supporting intestinal barrier integrity. This is particularly relevant if you have conditions like obesity or IBD.
Omega-3 PUFAs could exert beneficial effects on the gut microbiota through decreasing the growth of Enterobacteria, increasing the growth of Bifidobacteria, and subsequently inhibiting the inflammatory response associated with metabolic endotoxemia [15].
Why this rating
The paper is a review article summarizing multiple animal and some human studies; it cites evidence but does not present new primary clinical trial data.
Source
Associations among Dietary Omega‐3 Polyunsaturated Fatty Acids, the Gut Microbiota, and Intestinal Immunity
Yawei Fu et al. · Mediators of Inflammation · 2021
DOI 10.1155/2021/8879227
More from this paper
- Omega-3 PUFAs reduce intestinal inflammation and immune response by inhibiting pro-inflammatory signaling pathways (NF-κB, MAPK) and promoting anti-inflammatory mediators (IL-10, SCFAs like butyrate).Moderate
- Omega-3 PUFAs can alleviate symptoms of Non-Alcoholic Fatty Liver Disease (NAFLD) and obesity by modulating gut microbiota and reducing hepatic lipid content.Moderate
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