{"id":574,"date":"2026-10-25T12:13:32","date_gmt":"2026-10-25T11:13:32","guid":{"rendered":"https:\/\/purvival.com\/journal\/?post_type=bw_ingredient&#038;p=574"},"modified":"2026-10-25T22:28:22","modified_gmt":"2026-10-25T21:28:22","slug":"vitamine-b3","status":"publish","type":"bw_ingredient","link":"https:\/\/purvival.com\/journal\/ingredients\/vitamine-b3\/","title":{"rendered":"Vitamine B3"},"content":{"rendered":"<h2>Ce que c\u2019est<\/h2>\n<p>La vitamine B3, ou niacine, d\u00e9signe deux compos\u00e9s proches, l\u2019acide nicotinique et le nicotinamide. On la trouve dans la viande, la volaille, le poisson comme le thon, les arachides et les c\u00e9r\u00e9ales compl\u00e8tes (<a href=\"https:\/\/ciqual.anses.fr\/\">table de composition Ciqual de l\u2019Anses<\/a>). Le corps en fabrique aussi \u00e0 partir du tryptophane, un acide amin\u00e9 apport\u00e9 par les prot\u00e9ines.<\/p>\n<p>Selon <a href=\"https:\/\/doi.org\/10.2903\/j.efsa.2014.3759\">l\u2019Autorit\u00e9 europ\u00e9enne de s\u00e9curit\u00e9 des aliments<\/a> (EFSA), environ 60 mg de tryptophane donnent 1 mg de niacine, d\u2019o\u00f9 l\u2019unit\u00e9 utilis\u00e9e, l\u2019\u00e9quivalent niacine. L\u2019EFSA recommande 1,6 mg d\u2019\u00e9quivalents niacine par m\u00e9gajoule, soit 6,6 mg pour 1 000 kcal : environ 13 mg par jour pour une personne qui consomme 2 000 kcal. Un manque prolong\u00e9 de tryptophane et de niacine peut provoquer la pellagre.<\/p>\n<p>Nutricor en contient, sous forme de nicotinamide, parmi les 20 nutriments de sa formule.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vitamine du groupe B, aussi appel\u00e9e niacine, apport\u00e9e par la viande et le poisson, et fabriqu\u00e9e \u00e0 partir du tryptophane.<\/p>\n","protected":false},"featured_media":2810,"template":"","meta":{"_bw_latin":"","_bw_synonyms":"nicotinamide","_bw_brand":"","_bw_precautions":"","_bw_subtitle":"niacine (nicotinamide)","_bw_studies_intro":"","_bw_mention":"","_bw_studies":[],"_bw_documents":[],"_bw_claims":["La Niacine (vitamine B3) contribue au m\u00e9tabolisme \u00e9nerg\u00e9tique normal"],"_bw_logo":0,"_bw_logo_dark":false},"class_list":["post-574","bw_ingredient","type-bw_ingredient","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vitamine B3 - 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