{"id":72060,"date":"2023-02-28T10:30:27","date_gmt":"2023-02-28T17:30:27","guid":{"rendered":"https:\/\/askthescientists.com\/?p=72060"},"modified":"2025-10-03T12:42:11","modified_gmt":"2025-10-03T18:42:11","slug":"short-chain-fatty-acids","status":"publish","type":"post","link":"https:\/\/askthescientists.com\/fr\/short-chain-fatty-acids\/","title":{"rendered":"Les acides gras \u00e0 cha\u00eene courte et o\u00f9 les trouver?"},"content":{"rendered":"<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-72049\" src=\"https:\/\/askthescientists.com\/wp-content\/uploads\/2023\/02\/AdobeStock_154166314.jpeg\" alt=\"Gut-brain connection\" width=\"835\" height=\"507\" srcset=\"https:\/\/askthescientists.com\/wp-content\/uploads\/2023\/02\/AdobeStock_154166314.jpeg 835w, https:\/\/askthescientists.com\/wp-content\/uploads\/2023\/02\/AdobeStock_154166314-400x243.jpeg 400w, https:\/\/askthescientists.com\/wp-content\/uploads\/2023\/02\/AdobeStock_154166314-768x466.jpeg 768w, https:\/\/askthescientists.com\/wp-content\/uploads\/2023\/02\/AdobeStock_154166314-705x428.jpeg 705w\" sizes=\"(max-width: 835px) 100vw, 835px\" \/><\/p>\n<p>Les gras ont mauvaise r\u00e9putation dans le monde de la nutrition. \u00c0 un moment donn\u00e9, la soci\u00e9t\u00e9 a d\u00e9cid\u00e9 que les gras \u00e9taient mauvais pour la sant\u00e9 et, par cons\u00e9quent, que les aliments gras \u00e9taient n\u00e9fastes. Par exemple, lorsque vous lisez le terme \u00ab\u00a0acides gras \u00e0 cha\u00eene courte\u00a0\u00bb, votre perception instinctive est probablement n\u00e9gative. Cependant, comme tout nutritionniste digne de ce nom pourra vous le dire, une telle r\u00e9action n&#8217;est pas n\u00e9cessaire.<\/p>\n<p>Mettez donc de c\u00f4t\u00e9 vos id\u00e9es pr\u00e9con\u00e7ues et poursuivez votre lecture pour d\u00e9couvrir ce que sont les acides gras \u00e0 cha\u00eene courte et pourquoi ils sont essentiels \u00e0 votre sant\u00e9 intestinale.<\/p>\n<h2>Que sont les acides gras \u00e0 cha\u00eene courte (AGCC)?<\/h2>\n<p>Il existe beaucoup d&#8217;id\u00e9es fausses sur les gras. Avant d&#8217;entrer dans le vif du sujet, il convient d&#8217;\u00e9claircir certains points. Le premier concept \u00e0 retenir est que les gras ne sont pas intrins\u00e8quement mauvais. En fait, les gras jouent un r\u00f4le crucial dans la nutrition de votre corps. Les <a href=\"https:\/\/askthescientists.com\/qa\/fat\/\">gras alimentaires<\/a> ou les gras provenant de l&#8217;alimentation donnent de l&#8217;\u00e9nergie \u00e0 votre corps, stockent et absorbent les nutriments et aident vos cellules \u00e0 fonctionner correctement.<\/p>\n<p>Lorsque vous ing\u00e9rez des gras alimentaires, votre corps les d\u00e9compose en acides gras. Consid\u00e9rez ceux-ci comme les \u00e9l\u00e9ments de base des gras. Les acides gras sont des mol\u00e9cules comportant une cha\u00eene d&#8217;atomes de carbone li\u00e9s \u00e0 des atomes d&#8217;hydrog\u00e8ne.<\/p>\n<p>Le terme \u00ab\u00a0cha\u00eene courte\u00a0\u00bb fait r\u00e9f\u00e9rence \u00e0 la cha\u00eene d&#8217;atomes de carbone. Les acides gras \u00e0 cha\u00eene courte (AGCC) sont simplement des acides gras comportant une petite structure de carbone. (Les acides gras comportant plus de six atomes de carbone sont class\u00e9s en trois cat\u00e9gories\u00a0: \u00e0 cha\u00eene moyenne, \u00e0 cha\u00eene longue ou \u00e0 cha\u00eene tr\u00e8s longue).<\/p>\n<p>Contrairement \u00e0 la plupart des acides gras, la majorit\u00e9 des AGCC ne sont pas r\u00e9ellement pr\u00e9sents dans les aliments. Il s&#8217;agit plut\u00f4t d&#8217;un sous-produit cr\u00e9\u00e9 dans votre c\u00f4lon lorsque votre corps dig\u00e8re les fibres. Ainsi, plus votre r\u00e9gime alimentaire contient de fibres, plus votre organisme produira d&#8217;acides gras \u00e0 cha\u00eene courte.<\/p>\n<p>Si cela ne vous semble pas tr\u00e8s important, ne vous inqui\u00e9tez pas, la section suivante vous fournira de plus amples explications.<\/p>\n<h2>Les acides gras \u00e0 cha\u00eene courte et la sant\u00e9<\/h2>\n<p>Les acides gras \u00e0 cha\u00eene courte sont produits \u00e0 partir de fibres dig\u00e9r\u00e9es principalement dans le gros intestin, plus pr\u00e9cis\u00e9ment dans le c\u00f4lon. Pour conna\u00eetre le r\u00f4le que jouent les AGCC dans votre organisme, il est inutile de chercher loin.<\/p>\n<p><a href=\"https:\/\/askthescientists.com\/qa\/dietary-fiber-and-microbiome\/\">Lorsque les bonnes bact\u00e9ries de vos intestins, c&#8217;est-\u00e0-dire votre microbiome, d\u00e9composent les fibres pour cr\u00e9er des AGCC<\/a>, ces acides gras fournissent de l&#8217;\u00e9nergie aux cellules et favorisent une inflammation saine dans votre c\u00f4lon. En gros, les AGCC contribuent au bon fonctionnement de votre gros intestin, ce qui est plut\u00f4t positif.<\/p>\n<p>Si la gestion du poids est l&#8217;un de vos objectifs de sant\u00e9, les acides gras \u00e0 cha\u00eene courte vous aideront \u00e0 atteindre votre but. L&#8217;ac\u00e9tate, l&#8217;un des trois AGCC les plus courants dans l&#8217;organisme, a \u00e9t\u00e9 associ\u00e9 \u00e0 une acc\u00e9l\u00e9ration du m\u00e9tabolisme (la capacit\u00e9 de votre organisme \u00e0 dig\u00e9rer les aliments) ainsi qu&#8217;\u00e0 une diminution de l&#8217;app\u00e9tit. Ensemble, ces deux facteurs peuvent vous aider \u00e0 maintenir un poids sain.<\/p>\n<h2>L&#8217;axe intestin-cerveau\u00a0: les acides gras \u00e0 cha\u00eene courte et le syst\u00e8me nerveux central<\/h2>\n<p>Que vous en soyez conscient ou non, votre intestin contient des trillions de bact\u00e9ries, champignons, virus et autres micro-organismes. Cette communaut\u00e9 vivante, connue sous le nom de <a href=\"https:\/\/askthescientists.com\/gut-brain\/\">biome intestinal<\/a>, est responsable de plusieurs fonctions vitales de l&#8217;organisme (comme la production d&#8217;AGCC \u00e0 partir des fibres).<\/p>\n<p>Pour que votre microbiome fasse son travail efficacement, il doit communiquer avec votre corps, plus pr\u00e9cis\u00e9ment avec votre cerveau. Or, voici le probl\u00e8me\u00a0: ces micro-organismes vivent dans votre corps et ne sont pas seulement une partie de celui-ci. Alors comment pouvez-vous communiquer avec eux?<\/p>\n<p>La r\u00e9ponse est simple\u00a0: faites confiance \u00e0 votre intestin. Des \u00e9tudes ont montr\u00e9 que les intestins sont la principale ligne de communication entre le syst\u00e8me nerveux central (le cerveau) et le microbiome r\u00e9sident. Cette connexion, connue sous le nom d&#8217;axe intestin-cerveau, est cruciale pour maintenir l&#8217;\u00e9quilibre de votre intestin et de votre corps dans son ensemble.<\/p>\n<p>Alors, o\u00f9 se situent les acides gras \u00e0 cha\u00eene courte?<\/p>\n<p>Les AGCC favorisent la sant\u00e9 du c\u00f4lon et de l&#8217;intestin, ce qui contribue indirectement \u00e0 maintenir la communication dans l&#8217;axe intestin-cerveau. Apr\u00e8s tout, votre intestin est le m\u00e9diateur entre votre microbiome et votre cerveau. Un intestin sain est donc peut-\u00eatre la partie la plus importante de l&#8217;axe.<\/p>\n<p>Il s&#8217;av\u00e8re que les effets des acides gras \u00e0 cha\u00eene courte sur l&#8217;axe intestin-cerveau pourraient ne pas s&#8217;arr\u00eater l\u00e0. Des \u00e9tudes r\u00e9centes ont montr\u00e9 que les AGCC peuvent traverser la barri\u00e8re h\u00e9mato-enc\u00e9phalique (BHE). Cela signifie que les AGCC sont capables de passer du c\u00f4lon, o\u00f9 ils sont produits, au cerveau. L&#8217;impact exact de ce mouvement n&#8217;a pas encore \u00e9t\u00e9 pleinement explor\u00e9, mais on suppose que les AGCC contribuent \u00e0 pr\u00e9server la sant\u00e9 de la BHE, ce qui favorise l&#8217;\u00e9quilibre du syst\u00e8me nerveux central.<\/p>\n<p>Bien qu&#8217;il existe de nombreuses informations sur le microbiome, les chercheurs n&#8217;ont fait qu&#8217;effleurer le concept de l&#8217;axe intestin-cerveau. Plus nous approfondirons nos connaissances sur la communication entre les micro-organismes de notre corps et notre cerveau, plus nous en saurons sur notre sant\u00e9.<\/p>\n<h2>Les acides gras \u00e0 cha\u00eene courte et le r\u00e9gime alimentaire<\/h2>\n<p>Comme nous l&#8217;avons mentionn\u00e9 plus haut, les aliments ne fournissent pas beaucoup d&#8217;acides gras \u00e0 cha\u00eene courte, du moins pas directement. Si vous voulez augmenter le taux d&#8217;AGCC dans votre organisme, essayez d&#8217;augmenter votre consommation de fibres.<\/p>\n<p>Les aliments riches en fibres, li\u00e9s \u00e0 la production d&#8217;AGCC incluent les fruits, les l\u00e9gumes et les l\u00e9gumineuses. Il s&#8217;agit de cat\u00e9gories assez larges\u00a0; de nombreuses possibilit\u00e9s s&#8217;offrent donc \u00e0 vous. Que vous mangiez des artichauts, des pommes ou n&#8217;importe quels autres fruits et l\u00e9gumes, vous augmentez l&#8217;apport en fibres de votre corps. En termes d&#8217;AGCC, une pomme par jour suffit \u00e0 faire le bonheur du c\u00f4lon.<\/p>\n<div  class='togglecontainer av-14e080g-60165a81546d6356282e49ec44ca8589  avia-builder-el-0  avia-builder-el-no-sibling  toggle_close_all' >\n<section class='av_toggle_section av-u4a1cg-d7d0dbdd3b7bb9a5d4180b0b1438185b'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  ><p id='toggle-toggle-id-1' data-fake-id='#toggle-id-1' class='toggler  av-title-above '  itemprop=\"headline\"  role='tab' tabindex='0' aria-controls='toggle-id-1' data-slide-speed=\"200\" data-title=\"R\u00e9f\u00e9rences\" data-title-open=\"\" data-aria_collapsed=\"Click to expand: R\u00e9f\u00e9rences\" data-aria_expanded=\"Click to collapse: R\u00e9f\u00e9rences\">R\u00e9f\u00e9rences<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='toggle-id-1' aria-labelledby='toggle-toggle-id-1' role='region' class='toggle_wrap  av-title-above'  ><div class='toggle_content invers-color '  itemprop=\"text\" ><p><a href=\"https:\/\/www.frontiersin.org\/articles\/10.3389\/fendo.2020.00025\/full\">https:\/\/www.frontiersin.org\/articles\/10.3389\/fendo.2020.00025\/full<\/a><\/p>\n<p><a href=\"https:\/\/www.healthline.com\/nutrition\/short-chain-fatty-acids-101\">https:\/\/www.healthline.com\/nutrition\/short-chain-fatty-acids-101<\/a><\/p>\n<p><a href=\"https:\/\/www.webmd.com\/digestive-disorders\/what-to-know-short-chain-fatty-acids\">https:\/\/www.webmd.com\/digestive-disorders\/what-to-know-short-chain-fatty-acids<\/a><\/p>\n<p><a href=\"https:\/\/www.verywellhealth.com\/short-chain-fatty-acids-5219806\">https:\/\/www.verywellhealth.com\/short-chain-fatty-acids-5219806<\/a><\/p>\n<p><a href=\"https:\/\/nutritionfacts.org\/topics\/short-chain-fatty-acids\/\">https:\/\/nutritionfacts.org\/topics\/short-chain-fatty-acids\/<\/a><\/p>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Fatty_acid\">https:\/\/en.wikipedia.org\/wiki\/Fatty_acid<\/a><\/p>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Short-chain_fatty_acid\">https:\/\/en.wikipedia.org\/wiki\/Short-chain_fatty_acid<\/a><\/p>\n<\/div><\/div><\/div><\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Les gras ont mauvaise r\u00e9putation dans le monde de la nutrition. \u00c0 un moment donn\u00e9, la soci\u00e9t\u00e9 a d\u00e9cid\u00e9 que les gras \u00e9taient mauvais pour la sant\u00e9 et, par cons\u00e9quent, que les aliments gras \u00e9taient n\u00e9fastes. Par exemple, lorsque vous lisez le terme \u00ab\u00a0acides gras \u00e0 cha\u00eene courte\u00a0\u00bb, votre perception instinctive est probablement n\u00e9gative. Cependant, [&hellip;]<\/p>\n","protected":false},"author":10897,"featured_media":72052,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[284],"tags":[20759,20767,20732],"class_list":["post-72060","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nutrition_spotlight-fr","tag-body-systems-fr","tag-gut-health-and-microbiome-fr","tag-nutrition-basics-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Les acides gras \u00e0 cha\u00eene courte et o\u00f9 les trouver? - Ask The Scientists<\/title>\n<meta name=\"description\" content=\"Mettez de c\u00f4t\u00e9 vos id\u00e9es pr\u00e9con\u00e7ues et poursuivez votre lecture pour en savoir plus sur les acides gras \u00e0 cha\u00eene courte (AGCC) et pourquoi ils sont essentiels \u00e0 votre sant\u00e9.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/askthescientists.com\/fr\/short-chain-fatty-acids\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les acides gras \u00e0 cha\u00eene courte et o\u00f9 les trouver? 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