Macro partitioning
Dietary substitution of saturated fatty acids (SFA) with oleic acid (a monounsaturated fatty acid) reverses SFA-induced metabolic dysfunction, including insulin resistance and inflammation, by enhancing mitochondrial oxidation and reducing pro-inflammatory lipid intermediates like ceramides and diacylglycerols.
If your diet is high in saturated fats (like red meat or processed foods), try replacing some of those fats with oleic acid-rich sources, such as extra-virgin olive oil. This substitution helps lower inflammation and improves insulin sensitivity by changing how your cells process energy, specifically by reducing harmful lipid byproducts like ceramides.
The substitution of palmitic with oleic acid in the diet is able to reverse these detrimental metabolic effects of SFA. Cell culture studies have facilitated the definition of these molecular metabolic changes. In detail, oleic acid enhances mitochondrial oxidation of SFA by increasing triacylglycerol (TAG) and by reducing diacylglycerol (DAG) and ceramide production, thus protecting the cells from inflammation [50].
Why this rating
Based on a review of cell culture and animal models; human clinical data is referenced but the specific mechanism is largely pre-clinical.
Source
Role of Oleic Acid in the Gut-Liver Axis: From Diet to the Regulation of Its Synthesis via Stearoyl-CoA Desaturase 1 (SCD1)
Elena Piccinin et al. · Nutrients · 2019
DOI 10.3390/nu11102283
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