{"id":651,"date":"2026-10-25T12:13:32","date_gmt":"2026-10-25T11:13:32","guid":{"rendered":"https:\/\/purvival.com\/journal\/?post_type=bw_ingredient&p=651"},"modified":"2026-10-25T22:28:22","modified_gmt":"2026-10-25T21:28:22","slug":"vitamine-a","status":"publish","type":"bw_ingredient","link":"https:\/\/purvival.com\/journal\/ingredients\/vitamine-a\/","title":{"rendered":"Vitamine A"},"content":{"rendered":"

Ce que c\u2019est<\/h2>\n

La vitamine A est une vitamine liposoluble. Sous sa forme toute pr\u00eate, le r\u00e9tinol, elle vient des produits animaux : le foie en contient de tr\u00e8s grandes quantit\u00e9s, puis le beurre, les \u0153ufs et les fromages. Les l\u00e9gumes orange et vert fonc\u00e9 (carotte, patate douce, potiron, \u00e9pinard) apportent du b\u00eata-carot\u00e8ne, que le corps transforme en vitamine A (table de composition Ciqual de l\u2019Anses<\/a>).<\/p>\n

L\u2019Autorit\u00e9 europ\u00e9enne de s\u00e9curit\u00e9 des aliments<\/a> (EFSA) recommande 750 \u00b5g d\u2019\u00e9quivalents r\u00e9tinol par jour pour un homme et 650 \u00b5g pour une femme, 700 \u00b5g pendant la grossesse et 1 300 \u00b5g pendant l\u2019allaitement.<\/p>\n

Une dose de 10 ml d\u2019Optirenov apporte 120 \u00b5g de vitamine A, sous forme d\u2019ac\u00e9tate de r\u00e9tinol, avec des extraits de terminalia, d\u2019euphraise, de myrtille et de ginkgo, de la lut\u00e9ine, de la z\u00e9axanthine, du zinc et de la vitamine B2.<\/p>\n","protected":false},"excerpt":{"rendered":"

Vitamine liposoluble, pr\u00e9sente sous forme de r\u00e9tinol dans les produits animaux et de carot\u00e8nes dans les v\u00e9g\u00e9taux.<\/p>\n","protected":false},"featured_media":2806,"template":"","meta":{"_bw_latin":"","_bw_synonyms":"r\u00e9tinol","_bw_brand":"","_bw_precautions":"Ne d\u00e9passez pas 3 000 \u00b5g de vitamine A pr\u00e9form\u00e9e (r\u00e9tinol) par jour, alimentation et compl\u00e9ments compris, y compris pendant la grossesse (limite de s\u00e9curit\u00e9 fix\u00e9e par l\u2019EFSA).\nSi vous pr\u00e9voyez une grossesse ou \u00eates enceinte, l\u2019EFSA conseille de ne pas manger de foie ni de produits \u00e0 base de foie.","_bw_subtitle":"r\u00e9tinol","_bw_studies_intro":"","_bw_mention":"","_bw_studies":[],"_bw_documents":[],"_bw_claims":["La vitamine \u00c0 contribue au fonctionnement normal du syst\u00e8me immunitaire","La vitamine \u00c0 contribue au maintien d\u2019une peau normale","La vitamine \u00c0 contribue au maintien d\u2019une vision normale","La vitamine A joue un r\u00f4le dans le processus de sp\u00e9cialisation cellulaire"],"_bw_logo":0,"_bw_logo_dark":false},"class_list":["post-651","bw_ingredient","type-bw_ingredient","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nVitamine A - 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