Mixed
Dietary fats exert pro- or anti-inflammatory effects on atherosclerosis through specific immune-inflammatory pathways (e.g., TLR4 activation by saturated fats, SCFA-mediated anti-inflammation) that operate independently of, or in addition to, their metabolic effects on serum lipids.
Focus on the quality and type of fats, not just the quantity. Saturated fats may trigger inflammation via TLR4, while unsaturated fats and gut-derived short-chain fatty acids (from fiber) can reduce inflammation. Prioritize whole food sources of fats (nuts, fish) over processed fats to leverage beneficial immune interactions.
The experimental evidence, in fact, supports the concept that the pro- or anti-inflammatory potential of different dietary fats contributes to atherogenic or anti-atherogenic cellular and molecular processes beyond (or in addition to) their metabolic effects.
Why this rating
The paper is a review of experimental models (in vitro, animal) with stated 'poor translation to clinics' and 'scattered evidence', though it cites robust mechanistic data.
Source
Molecular Immune-Inflammatory Connections between Dietary Fats and Atherosclerotic Cardiovascular Disease: Which Translation into Clinics?
Elisa Mattavelli et al. · Nutrients · 2021
DOI 10.3390/nu13113768
More from this paper
- Saturated fatty acids (SFAs) promote atherosclerosis by activating TLR4 and NFκB pathways in macrophages, leading to increased pro-inflammatory cytokine production (IL-6, TNF-α) and NLRP3 inflammasome activation.Moderate
- Short-chain fatty acids (SCFAs) like butyrate and acetate, produced by gut microbiota from fiber, exert anti-atherogenic effects by binding to FFAR2 receptors, reducing pro-inflammatory cytokine production, and promoting regulatory T cell activity.Moderate
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