{"id":82312,"date":"2019-01-14T08:38:31","date_gmt":"2019-01-14T08:38:31","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/vitamine-b3-niacine\/"},"modified":"2019-01-14T08:38:31","modified_gmt":"2019-01-14T08:38:31","slug":"vitamine-b3-niacine","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/fr\/wiki\/vitamine-b3-niacine\/","title":{"rendered":"Vitamine B3 (niacine)"},"content":{"rendered":"<h2 id=\"quest-ce-que-la-vitamine-b3\">Qu&#8217;est-ce que la vitamine B3 ?<\/h2>\n<p>La vitamine B3 ou niacine fait partie des vitamines dites hydrosolubles. Elles ne sont pas stock\u00e9es dans l&#8217;organisme et doivent \u00eatre prises r\u00e9guli\u00e8rement par le biais d&#8217;aliments ou de suppl\u00e9ments.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"quel-est-le-role-de-la-vitamine-b3\">Quel est le r\u00f4le de la vitamine B3 ?<\/h2>\n<p>La vitamine B3 ou niacine est cruciale pour la respiration cellulaire, la digestion des aliments, la protection de la peau et favorise la circulation sanguine. Elle joue \u00e9galement un r\u00f4le fondamental dans le fonctionnement du syst\u00e8me nerveux. La vitamine B3 est aussi appel\u00e9e vitamine PP (facteur pr\u00e9ventif de la pellagre) en raison de son r\u00f4le dans la pr\u00e9vention de la pellagre, une maladie historique tr\u00e8s r\u00e9pandue.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"quels-sont-les-aliments-riches-en-vitamine-b3\">Quels sont les aliments riches en vitamine B3 ?<\/h2>\n<p>La vitamine B3 ou niacine est pr\u00e9sente dans la viande blanche, les \u00e9pinards, les arachides, le b\u0153uf, le foie, la levure ainsi que dans certains poissons comme le saumon, l&#8217;espadon et le thon.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"quels-sont-les-besoins-quotidiens-en-vitamine-b3\">Quels sont les besoins quotidiens en vitamine B3 ?<\/h2>\n<p>Les besoins quotidiens en vitamine B3, ou niacine, varient selon le sexe. Chez les femmes, 14 mg \/ g est recommand\u00e9, tandis que chez les hommes, 18 mg \/ d est recommand\u00e9.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"carence-en-vitamine-b3\">Carence en vitamine B3<\/h2>\n<p>Le manque de vitamine B3 ou de niacine peut causer de nombreux sympt\u00f4mes diff\u00e9rents allant des maux de t\u00eate, naus\u00e9es et irritabilit\u00e9 \u00e0 la perte de tonus musculaire et une mauvaise digestion.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"apport-excessif-en-vitamine-b3\">Apport excessif en vitamine B3<\/h2>\n<p>Un apport excessif en vitamine B3 peut causer des probl\u00e8mes qui peuvent se manifester par des sympt\u00f4mes tels que d\u00e9mangeaisons, naus\u00e9es, maux de t\u00eate, diarrh\u00e9e, bouff\u00e9es de chaleur et douleurs dans la partie sup\u00e9rieure de l&#8217;abdomen.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"quand-faut-il-prendre-de-la-vitamine-b3\">Quand faut-il prendre de la vitamine B3 ?<\/h2>\n<p>En g\u00e9n\u00e9ral, une personne en bonne sant\u00e9 qui suit un r\u00e9gime alimentaire \u00e9quilibr\u00e9 n&#8217;a pas besoin de prendre des suppl\u00e9ments de vitamine B3. Il y a toutefois des cas o\u00f9 les suppl\u00e9ments sont n\u00e9cessaires, par exemple pour les personnes \u00e2g\u00e9es, les personnes exer\u00e7ant des activit\u00e9s professionnelles p\u00e9nibles, les personnes qui pratiquent un sport professionnel, les personnes qui abusent de l&#8217;alcool et des drogues et les personnes qui ont subi des br\u00fblures \u00e9tendues sur la majeure partie du corps.<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1801],"class_list":["post-82312","enciclopedia","type-enciclopedia","status-publish","hentry","enciclopedia_category-vitamine"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Vitamine B3 (niacine) - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vitamine B3 (niacine) - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Qu&#8217;est-ce que la vitamine B3 ? 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