PPARα Regulation of Fat Composition and the French Diet: Mechanistic Insights into Macronutrient "Swamp" Living

PPARα Regulation of Fat Composition and the French Diet: Mechanistic Insights into Macronutrient "Swamp" Living | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 26 August 2025 V1 Latest version Share on PPARα Regulation of Fat Composition and the French Diet: Mechanistic Insights into Macronutrient "Swamp" Living Author : Ali Chtatbi 0009-0005-0058-6835 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.175623216.65908077/v1 199 views 109 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract The coexistence of high-fat and high-carbohydrate diets in certain traditional culturesmost notably in France-presents a paradox for modern nutritional science. While ketogenic and very low-fat diets demonstrate clear metabolic advantages, the so-called macronutrient swamp (diets containing 40% energy from both fat and carbohydrate) often leads to poor health outcomes. Yet, the traditional French diet, rich in butter, cheese, bread, and wine, is associated with relative leanness and low metabolic disease prevalence. This paper develops a mechanistic hypothesis that links the type of dietary fat, particularly saturated versus unsaturated composition, to the regulation of fat metabolism via peroxisome proliferator-activated receptor alpha (PPARα). We argue that high saturated fat intake in the French diet minimizes PPARα activation, thereby preventing excessive de novo lipogenesis, while culinary practices (broths, gelatin, and wine) provide additional metabolic protection. 5 French Culinary Practices Key features of the French diet include: • Use of butter in sauces, which increases saturated fat fraction relative to unsaturated chicken drippings. Supplementary Material File (ppar_regulation_of_fat_composition_and.pdf) Download 56.52 KB Information & Authors Information Version history V1 Version 1 26 August 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords biology biology of aging metabolism nutrition Authors Affiliations Ali Chtatbi 0009-0005-0058-6835 [email protected] View all articles by this author Metrics & Citations Metrics Article Usage 199 views 109 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Ali Chtatbi. PPARα Regulation of Fat Composition and the French Diet: Mechanistic Insights into Macronutrient "Swamp" Living. Authorea . 26 August 2025. DOI: https://doi.org/10.22541/au.175623216.65908077/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. 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