{"id":1191,"date":"2026-09-10T15:20:02","date_gmt":"2026-09-10T14:20:02","guid":{"rendered":"https:\/\/www.nutrixeal.fr\/expertise\/?p=1191"},"modified":"2026-09-10T15:20:02","modified_gmt":"2026-09-10T14:20:02","slug":"vitamine-b9-fatigue","status":"publish","type":"post","link":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/","title":{"rendered":"Vitamine B9 et fatigue&nbsp;: comprendre le lien et y rem\u00e9dier"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Une fatigue persistante s&rsquo;installe parfois sans cause \u00e9vidente et p\u00e8se sur votre quotidien. Le lien entre fatigue et vitamine B9 m\u00e9rite alors votre attention. Le laboratoire Nutrixeal vous explique le r\u00f4le de cette vitamine dans votre vitalit\u00e9. Bien cerner ce m\u00e9canisme vous aide \u00e0 rep\u00e9rer rapidement un \u00e9ventuel manque et \u00e0 r\u00e9agir sans plus attendre.<\/p>\n\n\n\r\n<section class=\"article-callout article-callout--summary panel summary-box\">\r\n\r\n    <div class=\"article-callout__header\">\r\n      <span class=\"article-callout__icon\" aria-hidden=\"true\">\r\n                  <svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\">\r\n            <path d=\"M3.5 10C3.5 6.22876 3.5 4.34315 4.7448 3.17157C5.98959 2 7.99306 2 12 2H12.7727C16.0339 2 17.6645 2 18.7969 2.79784C19.1214 3.02643 19.4094 3.29752 19.6523 3.60289C20.5 4.66867 20.5 6.20336 20.5 9.27273V11.8182C20.5 14.7814 20.5 16.2629 20.0311 17.4462C19.2772 19.3486 17.6829 20.8491 15.6616 21.5586C14.4044 22 12.8302 22 9.68182 22C7.88275 22 6.98322 22 6.26478 21.7478C5.10979 21.3424 4.19875 20.4849 3.76796 19.3979C3.5 18.7217 3.5 17.8751 3.5 16.1818V10Z\" stroke=\"#4FA729\" stroke-width=\"1.5\" stroke-linejoin=\"round\"\/>\r\n            <path d=\"M20.5 12C20.5 13.8409 19.0076 15.3333 17.1667 15.3333C16.5009 15.3333 15.716 15.2167 15.0686 15.3901C14.4935 15.5442 14.0442 15.9935 13.8901 16.5686C13.7167 17.216 13.8333 18.0009 13.8333 18.6667C13.8333 20.5076 12.3409 22 10.5 22\" stroke=\"#4FA729\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n            <path d=\"M8 7H15\" stroke=\"#4FA729\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n            <path d=\"M8 11H11\" stroke=\"#4FA729\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n          <\/svg>\r\n                <\/span>\r\n\r\n      <p class=\"article-callout__title\">\r\n        En r\u00e9sum\u00e9      <\/p>\r\n    <\/div>\r\n\r\n    <div class=\"article-callout__content\">\r\n      \n<ul class=\"wp-block-list\">\n<li><strong>Lien avec la fatigue<\/strong>&nbsp;: Un manque de vitamine B9 peut perturber la formation des globules rouges et r\u00e9duire l\u2019oxyg\u00e9nation de l\u2019organisme.<\/li>\n\n\n\n<li><strong>Signes \u00e9vocateurs<\/strong>&nbsp;: Fatigue persistante, p\u00e2leur, essoufflement, vertiges, maux de t\u00eate ou difficult\u00e9s de concentration peuvent accompagner une carence.<\/li>\n\n\n\n<li><strong>R\u00f4le cellulaire cl\u00e9<\/strong>&nbsp;: La vitamine B9 participe \u00e0 la synth\u00e8se de l\u2019ADN, \u00e0 la division cellulaire et au renouvellement normal des tissus.<\/li>\n\n\n\n<li><strong>Sources alimentaires<\/strong>&nbsp;: L\u00e9gumineuses, l\u00e9gumes verts, foie, levure alimentaire, agrumes, \u0153ufs et c\u00e9r\u00e9ales compl\u00e8tes renforcent naturellement les apports.<\/li>\n\n\n\n<li><strong>Suppl\u00e9mentation cibl\u00e9e<\/strong>&nbsp;: En cas de carence, grossesse, malabsorption ou projet b\u00e9b\u00e9, une suppl\u00e9mentation peut \u00eatre envisag\u00e9e, id\u00e9alement apr\u00e8s bilan m\u00e9dical.<\/li>\n\n\n\n<li><strong>Formes \u00e0 conna\u00eetre<\/strong>&nbsp;: L\u2019acide folique doit \u00eatre transform\u00e9 par l\u2019organisme, tandis que le m\u00e9thylfolate correspond \u00e0 une forme d\u00e9j\u00e0 active.<\/li>\n<\/ul>\n    <\/div>\r\n\r\n<\/section>\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8eef0148\"><h2 class=\"uagb-heading-text\">Qu&rsquo;est-ce que la vitamine B9 (folate)&nbsp;?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La vitamine B9 ne d\u00e9signe pas une seule mol\u00e9cule mais une famille de compos\u00e9s hydrosolubles r\u00e9unis sous un m\u00eame nom. Elle regroupe les folates, naturellement pr\u00e9sents dans nos assiettes, et l&rsquo;acide folique, la forme synth\u00e9tique des compl\u00e9ments. Ce nutriment participe \u00e0 la production du mat\u00e9riel g\u00e9n\u00e9tique et au renouvellement des cellules [1].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Votre corps ne sait pas la fabriquer par lui-m\u00eame. Un apport alimentaire r\u00e9gulier reste donc indispensable, car cette vitamine intervient dans de nombreux processus tout au long de la vie.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-f6b81ae6\"><h2 class=\"uagb-heading-text\">Quels sont les liens entre vitamine B9 et fatigue&nbsp;?<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-68af758c\"><h3 class=\"uagb-heading-text\">Pourquoi une carence en vitamine B9 cause-t-elle la fatigue&nbsp;?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La vitamine B9 assure la synth\u00e8se de l&rsquo;ADN et la division cellulaire, deux \u00e9tapes cl\u00e9s de la fabrication des cellules sanguines. Il contribue ainsi \u00e0 la formation normale du sang [3]. Quand les apports chutent, la moelle osseuse produit des globules rouges anormaux et moins nombreux. Ce d\u00e9ficit en vitamine b9 s&rsquo;installe alors progressivement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ces globules transportent ensuite moins bien l&rsquo;oxyg\u00e8ne vers vos organes. Vos muscles et votre cerveau re\u00e7oivent moins de carburant, ce qui explique cette sensation de coup de pompe et cette baisse d&rsquo;\u00e9nergie [1]. La fatigue devient souvent le premier signal ressenti.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-c9529d31\"><h3 class=\"uagb-heading-text\">Les sympt\u00f4mes de la fatigue li\u00e9e \u00e0 un manque de vitamine B9<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Cette fatigue poss\u00e8de un visage particulier. Vous ressentez un \u00e9puisement au moindre effort, un affaiblissement g\u00e9n\u00e9ral et un essoufflement inhabituel [1]. La concentration devient laborieuse et la moindre t\u00e2che semble exiger davantage d&rsquo;\u00e9nergie. Des maux de t\u00eate et des vertiges peuvent aussi appara\u00eetre au fil des semaines [1].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une p\u00e2leur du teint accompagne souvent ces signes. Ce ressenti figure parmi les premiers signaux d&rsquo;une insuffisance qui s&rsquo;installe. Comme ces manifestations restent peu sp\u00e9cifiques, une prise de sang permet de confirmer une \u00e9ventuelle carence en vitamine B9. Un professionnel de sant\u00e9 pourra ensuite en rechercher l\u2019origine et vous orienter vers une prise en charge adapt\u00e9e.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-7e8a5632\"><h2 class=\"uagb-heading-text\">Les autres bienfaits du folate pour la sant\u00e9<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Au-del\u00e0 de la vitalit\u00e9, cette vitamine soutient plusieurs fonctions de l&rsquo;organisme. Elle contribue au fonctionnement normal du syst\u00e8me immunitaire et \u00e0 des fonctions psychologiques normales [3]. Elle soutient aussi la synth\u00e8se normale des acides amin\u00e9s, ces briques qui composent vos prot\u00e9ines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce nutriment agit \u00e9galement dans le m\u00e9tabolisme de l&rsquo;homocyst\u00e9ine, un compos\u00e9 que l&rsquo;organisme doit maintenir \u00e0 un niveau normal [3]. Ces bienfaits en font un alli\u00e9 pr\u00e9cieux de votre \u00e9quilibre au quotidien.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-b540bbd5\"><h2 class=\"uagb-heading-text\">Les autres sympt\u00f4mes d&rsquo;une carence en vitamine B9<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-14d76dbc\"><h3 class=\"uagb-heading-text\">Signes neurologiques et psychologiques<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Un d\u00e9ficit prolong\u00e9 retentit sur l&rsquo;humeur et l&rsquo;esprit. Vous pouvez remarquer une irritabilit\u00e9, des troubles de l&rsquo;humeur ou des difficult\u00e9s de concentration [1][5]. La m\u00e9moire semble parfois moins fiable durant ces phases creuses.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les folates contribuent en effet \u00e0 des fonctions psychologiques normales [3]. Ces manifestations discr\u00e8tes passent souvent inaper\u00e7ues, d&rsquo;o\u00f9 l&rsquo;int\u00e9r\u00eat d&rsquo;un avis m\u00e9dical d\u00e8s que ce ressenti dure. Le sommeil et l&rsquo;entrain peuvent \u00e9galement en p\u00e2tir.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-4cdd7e25\"><h3 class=\"uagb-heading-text\">Manifestations musculaires et physiques<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le d\u00e9faut de carburant cellulaire touche aussi le corps dans son ensemble. Vos muscles se fatiguent vite et l&rsquo;effort physique devient p\u00e9nible. Cette faiblesse musculaire s&rsquo;accompagne d&rsquo;un souffle court \u00e0 la mont\u00e9e d&rsquo;un escalier [1].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une r\u00e9duction de l&rsquo;app\u00e9tit appara\u00eet chez certaines personnes et accentue le cercle. Moins d&rsquo;entr\u00e9es, moins de r\u00e9serves, et il peine davantage \u00e0 tenir la journ\u00e9e. Ce ralentissement traduit surtout le retentissement du probl\u00e8me sur vos muscles.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-b37f9ea1\"><h3 class=\"uagb-heading-text\">R\u00e9percussions h\u00e9matologiques (an\u00e9mie)<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Sur le plan sanguin, des apports insuffisants provoquent une an\u00e9mie dite m\u00e9galoblastique. La moelle fabrique alors des globules rouges anormalement grands et peu matures [1]. Le taux d&rsquo;h\u00e9moglobine diminue peu \u00e0 peu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette an\u00e9mie explique le teint blafard et l&rsquo;essoufflement d\u00e9crits plus haut. Une simple analyse sanguine met en \u00e9vidence ces anomalies et guide la conduite \u00e0 tenir. Le trouble r\u00e9gresse une fois les apports r\u00e9tablis sous contr\u00f4le m\u00e9dical.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-c843db48\"><h2 class=\"uagb-heading-text\">Quelles sont les causes fr\u00e9quentes de cette carence&nbsp;?<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-06fb7844\"><h3 class=\"uagb-heading-text\">Alimentation pauvre en folates<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Une assiette peu vari\u00e9e arrive en t\u00eate des causes. Les folates se concentrent dans les l\u00e9gumes verts et les l\u00e9gumineuses, souvent absents des repas press\u00e9s. Une cuisson longue \u00e0 l&rsquo;eau d\u00e9truit aussi une grande partie de ces nutriments fragiles [1][4].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les r\u00e9gimes restrictifs et les produits ultra-transform\u00e9s appauvrissent encore les apports. Les personnes \u00e2g\u00e9es et les grands consommateurs de plats industriels y sont particuli\u00e8rement expos\u00e9s.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-a1274707\"><h3 class=\"uagb-heading-text\">Troubles de l&rsquo;absorption intestinale<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Manger assez de folates ne garantit pas toujours une bonne assimilation. Certaines maladies digestives, comme la maladie c\u0153liaque ou les inflammations chroniques de l&rsquo;intestin, freinent l&rsquo;absorption [5]. L&rsquo;intestin laisse alors passer une part r\u00e9duite du nutriment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Des inflammations r\u00e9p\u00e9t\u00e9es et certaines chirurgies fragilisent aussi ce passage. L&rsquo;organisme re\u00e7oit moins de folate, m\u00eame avec une assiette correcte. Ce type de situation explique certaines carences malgr\u00e9 des repas \u00e9quilibr\u00e9s [5].<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-f743cec2\"><h3 class=\"uagb-heading-text\">Facteurs aggravants et populations \u00e0 risque (grossesse, alcool, certains m\u00e9dicaments)<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Certaines \u00e9tapes de l&rsquo;existence augmentent nettement les besoins. La grossesse et la lactation sollicitent davantage vos r\u00e9serves, tout comme la petite enfance. Une attention particuli\u00e8re est donc port\u00e9e aux apports en vitamine B9 chez les femmes enceintes [1][2].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;alcool r\u00e9gulier perturbe l&rsquo;assimilation et le stockage du folate. Plusieurs m\u00e9dicaments, dont certains traitements de fond comme les anti\u00e9pileptiques, abaissent aussi son niveau sanguin [5]. Un risque accru concerne donc ces situations pr\u00e9cises.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-478af4a4\"><h2 class=\"uagb-heading-text\">O\u00f9 trouver la vitamine B9 dans son alimentation&nbsp;?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Bonne nouvelle&nbsp;: de nombreux aliments couvrent facilement la ration n\u00e9cessaire. Les l\u00e9gumineuses et les l\u00e9gumes verts \u00e0 feuilles arrivent en t\u00eate, aux c\u00f4t\u00e9s du foie et de la levure alimentaire [1][4]. Les agrumes, les \u0153ufs et les c\u00e9r\u00e9ales compl\u00e8tes offrent un renfort appr\u00e9ciable.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Aliment<\/th><th>Teneur en folate (\u00b5g pour 100 g)<\/th><\/tr><\/thead><tbody><tr><td>Levure alimentaire&nbsp;<\/td><td>environ 700<\/td><\/tr><tr><td>Foie (volaille, veau)<\/td><td>300 \u00e0 590<\/td><\/tr><tr><td>Haricots secs, pois chiches<\/td><td>180 \u00e0 370<\/td><\/tr><tr><td>Lentilles cuites<\/td><td>environ 180<\/td><\/tr><tr><td>\u00c9pinards<\/td><td>environ 150<\/td><\/tr><tr><td>Asperges cuites<\/td><td>100 \u00e0 150<\/td><\/tr><tr><td>\u0152ufs<\/td><td>environ 45<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Teneurs indicatives, d&rsquo;apr\u00e8s la table Ciqual de l&rsquo;ANSES [4].<\/p>\n\n\n\r\n<section class=\"article-callout article-callout--takeaway panel summary-box\">\r\n\r\n    <div class=\"article-callout__header\">\r\n      <span class=\"article-callout__icon\" aria-hidden=\"true\">\r\n                  <svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\r\n            <path d=\"M5.14286 14C4.41735 12.8082 4 11.4118 4 9.91886C4 5.54539 7.58172 2 12 2C16.4183 2 20 5.54539 20 9.91886C20 11.4118 19.5827 12.8082 18.8571 14\" stroke=\"#98800B\" stroke-width=\"1.5\" stroke-linecap=\"round\"\/>\r\n            <path d=\"M7.38287 17.0982C7.291 16.8216 7.24507 16.6833 7.25042 16.5713C7.26174 16.3343 7.41114 16.1262 7.63157 16.0405C7.73579 16 7.88105 16 8.17157 16H15.8284C16.119 16 16.2642 16 16.3684 16.0405C16.5889 16.1262 16.7383 16.3343 16.7496 16.5713C16.7549 16.6833 16.709 16.8216 16.6171 17.0982C16.4473 17.6094 16.3624 17.8651 16.2315 18.072C15.9572 18.5056 15.5272 18.8167 15.0306 18.9408C14.7935 19 14.525 19 13.9881 19H10.0119C9.47495 19 9.2065 19 8.96944 18.9408C8.47283 18.8167 8.04281 18.5056 7.7685 18.072C7.63755 17.8651 7.55266 17.6094 7.38287 17.0982Z\" stroke=\"#98800B\" stroke-width=\"1.5\"\/>\r\n            <path d=\"M15 19L14.8707 19.6466C14.7293 20.3537 14.6586 20.7072 14.5001 20.9866C14.2552 21.4185 13.8582 21.7439 13.3866 21.8994C13.0816 22 12.7211 22 12 22C11.2789 22 10.9184 22 10.6134 21.8994C10.1418 21.7439 9.74484 21.4185 9.49987 20.9866C9.34144 20.7072 9.27073 20.3537 9.12932 19.6466L9 19\" stroke=\"#98800B\" stroke-width=\"1.5\"\/>\r\n            <path d=\"M12 16V11\" stroke=\"#98800B\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n          <\/svg>\r\n                <\/span>\r\n\r\n      <p class=\"article-callout__title\">\r\n        Bon \u00e0 savoir      <\/p>\r\n    <\/div>\r\n\r\n    <div class=\"article-callout__content\">\r\n      \n<p class=\"wp-block-paragraph\">Le folate craint la chaleur, la lumi\u00e8re et l&rsquo;eau de cuisson. Pour pr\u00e9server ces apports, privil\u00e9giez la vapeur douce, les cuissons courtes et quelques crudit\u00e9s. Un filet de jus de citron, riche en vitamine C, prot\u00e8ge les folates contenus dans vos assiettes de l&rsquo;oxydation.<\/p>\n    <\/div>\r\n\r\n<\/section>\n\n\n<p class=\"wp-block-paragraph\">Varier ces aliments au fil de la semaine s\u00e9curise un statut r\u00e9gulier sans effort notable.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-97653483\"><h2 class=\"uagb-heading-text\">Comment corriger une carence en folate&nbsp;?<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-2402a3a5\"><h3 class=\"uagb-heading-text\">Adapter son alimentation&nbsp;: conseils pratiques<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Quelques ajustements simples rel\u00e8vent vos apports au quotidien. Int\u00e9grez des lentilles, des asperges ou de la m\u00e2che \u00e0 plusieurs repas de la semaine. Optez pour des cuissons douces et rapides, \u00e0 la vapeur de pr\u00e9f\u00e9rence, afin de pr\u00e9server le nutriment [1].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Associez ces plats \u00e0 une source de vitamine C. Une base v\u00e9g\u00e9tale vari\u00e9e couvre l&rsquo;essentiel chez un adulte en bonne sant\u00e9.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-3415bd98\"><h3 class=\"uagb-heading-text\">Quand envisager une suppl\u00e9mentation en vitamine B9&nbsp;?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;assiette ne suffit pas toujours \u00e0 combler une carence install\u00e9e. Ce renfort se justifie lors d&rsquo;un besoin accru, d&rsquo;une malabsorption ou d&rsquo;un projet de b\u00e9b\u00e9. Il s&rsquo;envisage id\u00e9alement apr\u00e8s un bilan sanguin appropri\u00e9 et un contr\u00f4le m\u00e9dical [5][1].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le professionnel adapte la dose \u00e0 votre situation r\u00e9elle. Cette d\u00e9marche cible le vrai besoin plut\u00f4t qu&rsquo;une prise au hasard.&nbsp;<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-58b764f0\"><h3 class=\"uagb-heading-text\">Les diff\u00e9rentes formes de compl\u00e9ments (acide folique ou folate actif)<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Deux grandes formes existent dans les <a href=\"https:\/\/www.nutrixeal.fr\/229-vitamine-b9-folates\">compl\u00e9ments alimentaires en vitamine B9<\/a>: l\u2019acide folique et le m\u00e9thylfolate, ou 5-MTHF. L\u2019acide folique est une forme synth\u00e9tique stable qui doit \u00eatre transform\u00e9e par l\u2019organisme avant de pouvoir \u00eatre utilis\u00e9e. Le m\u00e9thylfolate, quant \u00e0 lui, est d\u00e9j\u00e0 pr\u00e9sent sous une forme biologiquement active [6].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nutrixeal a choisi cette forme active afin de proposer une vitamine B9 directement disponible, sans \u00e9tape de conversion pr\u00e9alable. Elle peut notamment \u00eatre int\u00e9ressante chez les personnes dont cette transformation est moins efficace.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-85100428\"><h2 class=\"uagb-heading-text\">Posologie et pr\u00e9cautions avec la vitamine B9<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-508f9391\"><h3 class=\"uagb-heading-text\">Apports recommand\u00e9s selon les besoins<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les rep\u00e8res varient selon l&rsquo;\u00e2ge et l&rsquo;\u00e9tat physiologique. L&rsquo;ANSES situe l&rsquo;apport de r\u00e9f\u00e9rence autour de 330 microgrammes par jour chez l&rsquo;adulte [2]. La grossesse le porte \u00e0 600 microgrammes et la lactation \u00e0 500 microgrammes quotidiens.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-82554cdc\"><h3 class=\"uagb-heading-text\">Effets secondaires et surdosage \u00e9ventuels<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le folate d&rsquo;origine alimentaire ne pr\u00e9sente aucun risque de surdosage. La prudence vise surtout la forme synth\u00e9tique \u00e0 haute dose. Au-del\u00e0 de 1 000 microgrammes quotidiens, elle peut dissimuler une carence en vitamine B12 [5][2].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quelques inconforts intestinaux l\u00e9gers accompagnent parfois les fortes doses. Un usage raisonn\u00e9 et encadr\u00e9 \u00e9carte ce genre de d\u00e9sagr\u00e9ment.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-a2c8af8d\"><h3 class=\"uagb-heading-text\">Interactions m\u00e9dicamenteuses \u00e0 conna\u00eetre<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le folate peut interagir avec certains traitements. En canc\u00e9rologie, une suppl\u00e9mentation peut notamment interf\u00e9rer avec l\u2019action du m\u00e9thotrexate et doit \u00eatre encadr\u00e9e par l\u2019oncologue. \u00c0 l\u2019inverse, certains anti\u00e9pileptiques peuvent diminuer le taux sanguin de folates, tandis que la sulfasalazine en r\u00e9duit l\u2019absorption intestinale [5].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ces associations n\u00e9cessitent toujours l&rsquo;accord de votre m\u00e9decin. Ne modifiez jamais un traitement de vous-m\u00eame. Signalez syst\u00e9matiquement vos suppl\u00e9ments \u00e0 votre pharmacien.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-e553df92\"><h2 class=\"uagb-heading-text\">La vitamine B9 et la grossesse&nbsp;: un besoin accru<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La grossesse repr\u00e9sente la p\u00e9riode la plus sensible pour cette vitamine. Il soutient la croissance des tissus maternels et accompagne la formation de l&rsquo;\u00e9bauche du syst\u00e8me nerveux de l&#8217;embryon [3][1]. Une r\u00e9serve suffisante nourrit alors le renouvellement des cellules de l&rsquo;enfant \u00e0 na\u00eetre. Vos besoins grimpent d\u00e8s les toutes premi\u00e8res semaines, souvent avant m\u00eame l&rsquo;annonce.<\/p>\n\n\n\r\n<section class=\"article-callout article-callout--takeaway panel summary-box\">\r\n\r\n    <div class=\"article-callout__header\">\r\n      <span class=\"article-callout__icon\" aria-hidden=\"true\">\r\n                  <svg width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\r\n            <path d=\"M5.14286 14C4.41735 12.8082 4 11.4118 4 9.91886C4 5.54539 7.58172 2 12 2C16.4183 2 20 5.54539 20 9.91886C20 11.4118 19.5827 12.8082 18.8571 14\" stroke=\"#98800B\" stroke-width=\"1.5\" stroke-linecap=\"round\"\/>\r\n            <path d=\"M7.38287 17.0982C7.291 16.8216 7.24507 16.6833 7.25042 16.5713C7.26174 16.3343 7.41114 16.1262 7.63157 16.0405C7.73579 16 7.88105 16 8.17157 16H15.8284C16.119 16 16.2642 16 16.3684 16.0405C16.5889 16.1262 16.7383 16.3343 16.7496 16.5713C16.7549 16.6833 16.709 16.8216 16.6171 17.0982C16.4473 17.6094 16.3624 17.8651 16.2315 18.072C15.9572 18.5056 15.5272 18.8167 15.0306 18.9408C14.7935 19 14.525 19 13.9881 19H10.0119C9.47495 19 9.2065 19 8.96944 18.9408C8.47283 18.8167 8.04281 18.5056 7.7685 18.072C7.63755 17.8651 7.55266 17.6094 7.38287 17.0982Z\" stroke=\"#98800B\" stroke-width=\"1.5\"\/>\r\n            <path d=\"M15 19L14.8707 19.6466C14.7293 20.3537 14.6586 20.7072 14.5001 20.9866C14.2552 21.4185 13.8582 21.7439 13.3866 21.8994C13.0816 22 12.7211 22 12 22C11.2789 22 10.9184 22 10.6134 21.8994C10.1418 21.7439 9.74484 21.4185 9.49987 20.9866C9.34144 20.7072 9.27073 20.3537 9.12932 19.6466L9 19\" stroke=\"#98800B\" stroke-width=\"1.5\"\/>\r\n            <path d=\"M12 16V11\" stroke=\"#98800B\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\/>\r\n          <\/svg>\r\n                <\/span>\r\n\r\n      <p class=\"article-callout__title\">\r\n        Bon \u00e0 savoir      <\/p>\r\n    <\/div>\r\n\r\n    <div class=\"article-callout__content\">\r\n      \n<p class=\"wp-block-paragraph\">Les autorit\u00e9s sanitaires conseillent 400 microgrammes de folate au quotidien, id\u00e9alement quatre semaines avant la conception et durant les premi\u00e8res semaines qui suivent [5]. Cette habitude concerne toute femme en \u00e2ge de concevoir, car la moiti\u00e9 des conceptions ne sont pas programm\u00e9es.<\/p>\n    <\/div>\r\n\r\n<\/section>\n\n\n<p class=\"wp-block-paragraph\">Les autorit\u00e9s m\u00e9dicales recommandent un apport cibl\u00e9 d\u00e8s le projet d&rsquo;enfant [1]. La bonne marche du f\u0153tus d\u00e9pend de multiples facteurs, et un suivi m\u00e9dical rapproch\u00e9 s&rsquo;impose.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8ea3048e\"><h2 class=\"uagb-heading-text\">Foire aux questions&nbsp;: vitamine B9 et fatigue<\/h2><\/div>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1787558776821\"><strong class=\"schema-faq-question\">La fatigue est-elle le seul signe d&rsquo;une carence en vitamine B9&nbsp;?<\/strong> <p class=\"schema-faq-answer\">Non. Un teint p\u00e2le, un souffle court, des sautes d&rsquo;humeur ou un essoufflement accompagnent fr\u00e9quemment la carence, parfois avant la fatigue ressentie.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1787558804512\"><strong class=\"schema-faq-question\">Combien de temps faut-il pour voir les effets d&rsquo;une cure&nbsp;?<\/strong> <p class=\"schema-faq-answer\">Comptez souvent plusieurs semaines pour normaliser le bilan sanguin. Le d\u00e9lai varie selon chaque profil, d&rsquo;o\u00f9 l&rsquo;int\u00e9r\u00eat d&rsquo;un contr\u00f4le m\u00e9dical r\u00e9gulier.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1787558821222\"><strong class=\"schema-faq-question\">La vitamine B9 peut-elle interagir avec d&rsquo;autres vitamines ou min\u00e9raux&nbsp;?<\/strong> <p class=\"schema-faq-answer\">Oui. Elle collabore avec la vitamine B12 dans la production sanguine. Un exc\u00e8s de forme synth\u00e9tique peut d&rsquo;ailleurs masquer un d\u00e9ficit de cette derni\u00e8re.<\/p> <\/div> <\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8ea6e14e\"><h2 class=\"uagb-heading-text\">Sources<\/h2><\/div>\n\n\n\n<ol class=\"wp-block-list\">\n<li>ANSES, Agence nationale de s\u00e9curit\u00e9 sanitaire de l&rsquo;alimentation, de l&rsquo;environnement et du travail. Tout savoir sur la vitamine B9, 2024.<\/li>\n\n\n\n<li>ANSES. Les r\u00e9f\u00e9rences nutritionnelles en vitamines et min\u00e9raux, rapport d&rsquo;expertise collective, 2021.<\/li>\n\n\n\n<li>R\u00e8glement (UE) n\u00b0 432\/2012 de la Commission \u00e9tablissant une liste des all\u00e9gations de sant\u00e9 autoris\u00e9es portant sur les denr\u00e9es alimentaires.<\/li>\n\n\n\n<li>ANSES. Table de composition nutritionnelle des aliments Ciqual.<\/li>\n\n\n\n<li>National Institutes of Health, Office of Dietary Supplements. Folate&nbsp;: Fact Sheet for Health Professionals.<\/li>\n\n\n\n<li>EFSA Panel on Dietetic Products, Nutrition and Allergies. Scientific Opinion on (6S)-5-methyltetrahydrofolic acid, glucosamine salt, as a source of folate, 2013.<\/li>\n<\/ol>\n\n\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Une fatigue persistante s&rsquo;installe parfois sans cause \u00e9vidente et p\u00e8se sur votre quotidien. Le lien entre fatigue et vitamine B9 m\u00e9rite alors votre attention. Le laboratoire Nutrixeal vous explique le r\u00f4le de cette vitamine dans votre vitalit\u00e9. Bien cerner ce m\u00e9canisme vous aide \u00e0 rep\u00e9rer rapidement un \u00e9ventuel manque et \u00e0 r\u00e9agir sans plus attendre. [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1204,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","nutrixeal_featured":false,"nutrixeal_most_read":false,"footnotes":""},"categories":[48,51],"tags":[],"class_list":["post-1191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-fatigue","category-articles-vitamine-b9"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vitamine B9 et fatigue : d\u00e9couvrez la raison de votre fatigue<\/title>\n<meta name=\"description\" content=\"Fatigu\u00e9(e) ? Une carence en vitamine B9 pourrait en \u00eatre la cause. D\u00e9couvrez les sympt\u00f4mes et comment y rem\u00e9dier pour retrouver votre \u00e9nergie.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vitamine B9 et fatigue : d\u00e9couvrez la raison de votre fatigue\" \/>\n<meta property=\"og:description\" content=\"Fatigu\u00e9(e) ? Une carence en vitamine B9 pourrait en \u00eatre la cause. D\u00e9couvrez les sympt\u00f4mes et comment y rem\u00e9dier pour retrouver votre \u00e9nergie.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/\" \/>\n<meta property=\"og:site_name\" content=\"Nutrixeal - Conseils\" \/>\n<meta property=\"article:published_time\" content=\"2026-09-10T14:20:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2172\" \/>\n\t<meta property=\"og:image:height\" content=\"724\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Equipe scientifique Nutrixeal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Equipe scientifique Nutrixeal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/\"},\"author\":{\"name\":\"Equipe scientifique Nutrixeal\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/#\\\/schema\\\/person\\\/1acc5b1e12666c939bf3ef6616321c15\"},\"headline\":\"Vitamine B9 et fatigue&nbsp;: comprendre le lien et y rem\u00e9dier\",\"datePublished\":\"2026-09-10T14:20:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/\"},\"wordCount\":2117,\"publisher\":{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/nutrixeal.b-cdn.net\\\/expertise\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/VitamineB9_fatigue.png\",\"articleSection\":[\"Fatigue\",\"Vitamine B9\"],\"inLanguage\":\"fr-FR\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/\",\"url\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/\",\"name\":\"Vitamine B9 et fatigue : d\u00e9couvrez la raison de votre fatigue\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/nutrixeal.b-cdn.net\\\/expertise\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/VitamineB9_fatigue.png\",\"datePublished\":\"2026-09-10T14:20:02+00:00\",\"description\":\"Fatigu\u00e9(e) ? Une carence en vitamine B9 pourrait en \u00eatre la cause. D\u00e9couvrez les sympt\u00f4mes et comment y rem\u00e9dier pour retrouver votre \u00e9nergie.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#breadcrumb\"},\"mainEntity\":[{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#faq-question-1787558776821\"},{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#faq-question-1787558804512\"},{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#faq-question-1787558821222\"}],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#primaryimage\",\"url\":\"https:\\\/\\\/nutrixeal.b-cdn.net\\\/expertise\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/VitamineB9_fatigue.png\",\"contentUrl\":\"https:\\\/\\\/nutrixeal.b-cdn.net\\\/expertise\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/VitamineB9_fatigue.png\",\"width\":2172,\"height\":724,\"caption\":\"Bienfaits de la vitamine b9 sur la fatigue\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Vitamine B9 et fatigue&nbsp;: comprendre le lien et y rem\u00e9dier\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/#website\",\"url\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/\",\"name\":\"Nutrixeal - Conseils\",\"description\":\"L&#039;expertise nutraceutique\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/#organization\",\"name\":\"Nutrixeal - Conseils\",\"url\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/nutrixeal.b-cdn.net\\\/expertise\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/logo-200.webp\",\"contentUrl\":\"https:\\\/\\\/nutrixeal.b-cdn.net\\\/expertise\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/logo-200.webp\",\"width\":200,\"height\":54,\"caption\":\"Nutrixeal - Conseils\"},\"image\":{\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/#\\\/schema\\\/person\\\/1acc5b1e12666c939bf3ef6616321c15\",\"name\":\"Equipe scientifique Nutrixeal\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/ad516503a11cd5ca435acc9bb6523536?s=96\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/ad516503a11cd5ca435acc9bb6523536?s=96\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/ad516503a11cd5ca435acc9bb6523536?s=96\",\"caption\":\"Equipe scientifique Nutrixeal\"},\"description\":\"Notre travail de r\u00e9daction est toujours une aventure collective. \u2192 D\u00e9couvrez l'\u00e9quipe de r\u00e9dacteurs scientifiques de Nutrixeal\",\"url\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/author\\\/equipe-scientifique\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#faq-question-1787558776821\",\"position\":1,\"url\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#faq-question-1787558776821\",\"name\":\"La fatigue est-elle le seul signe d'une carence en vitamine B9 ?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Non. Un teint p\u00e2le, un souffle court, des sautes d'humeur ou un essoufflement accompagnent fr\u00e9quemment la carence, parfois avant la fatigue ressentie.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#faq-question-1787558804512\",\"position\":2,\"url\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#faq-question-1787558804512\",\"name\":\"Combien de temps faut-il pour voir les effets d'une cure ?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Comptez souvent plusieurs semaines pour normaliser le bilan sanguin. Le d\u00e9lai varie selon chaque profil, d'o\u00f9 l'int\u00e9r\u00eat d'un contr\u00f4le m\u00e9dical r\u00e9gulier.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#faq-question-1787558821222\",\"position\":3,\"url\":\"https:\\\/\\\/www.nutrixeal.fr\\\/expertise\\\/vitamine-b9-fatigue\\\/#faq-question-1787558821222\",\"name\":\"La vitamine B9 peut-elle interagir avec d'autres vitamines ou min\u00e9raux ?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Oui. Elle collabore avec la vitamine B12 dans la production sanguine. Un exc\u00e8s de forme synth\u00e9tique peut d'ailleurs masquer un d\u00e9ficit de cette derni\u00e8re.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Vitamine B9 et fatigue : d\u00e9couvrez la raison de votre fatigue","description":"Fatigu\u00e9(e) ? Une carence en vitamine B9 pourrait en \u00eatre la cause. D\u00e9couvrez les sympt\u00f4mes et comment y rem\u00e9dier pour retrouver votre \u00e9nergie.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/","og_locale":"fr_FR","og_type":"article","og_title":"Vitamine B9 et fatigue : d\u00e9couvrez la raison de votre fatigue","og_description":"Fatigu\u00e9(e) ? Une carence en vitamine B9 pourrait en \u00eatre la cause. D\u00e9couvrez les sympt\u00f4mes et comment y rem\u00e9dier pour retrouver votre \u00e9nergie.","og_url":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/","og_site_name":"Nutrixeal - Conseils","article_published_time":"2026-09-10T14:20:02+00:00","og_image":[{"width":2172,"height":724,"url":"https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue.png","type":"image\/png"}],"author":"Equipe scientifique Nutrixeal","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Equipe scientifique Nutrixeal","Dur\u00e9e de lecture estim\u00e9e":"11 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#article","isPartOf":{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/"},"author":{"name":"Equipe scientifique Nutrixeal","@id":"https:\/\/www.nutrixeal.fr\/expertise\/#\/schema\/person\/1acc5b1e12666c939bf3ef6616321c15"},"headline":"Vitamine B9 et fatigue&nbsp;: comprendre le lien et y rem\u00e9dier","datePublished":"2026-09-10T14:20:02+00:00","mainEntityOfPage":{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/"},"wordCount":2117,"publisher":{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/#organization"},"image":{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#primaryimage"},"thumbnailUrl":"https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue.png","articleSection":["Fatigue","Vitamine B9"],"inLanguage":"fr-FR"},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/","url":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/","name":"Vitamine B9 et fatigue : d\u00e9couvrez la raison de votre fatigue","isPartOf":{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#primaryimage"},"image":{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#primaryimage"},"thumbnailUrl":"https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue.png","datePublished":"2026-09-10T14:20:02+00:00","description":"Fatigu\u00e9(e) ? Une carence en vitamine B9 pourrait en \u00eatre la cause. D\u00e9couvrez les sympt\u00f4mes et comment y rem\u00e9dier pour retrouver votre \u00e9nergie.","breadcrumb":{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#faq-question-1787558776821"},{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#faq-question-1787558804512"},{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#faq-question-1787558821222"}],"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#primaryimage","url":"https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue.png","contentUrl":"https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue.png","width":2172,"height":724,"caption":"Bienfaits de la vitamine b9 sur la fatigue"},{"@type":"BreadcrumbList","@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.nutrixeal.fr\/expertise\/"},{"@type":"ListItem","position":2,"name":"Vitamine B9 et fatigue&nbsp;: comprendre le lien et y rem\u00e9dier"}]},{"@type":"WebSite","@id":"https:\/\/www.nutrixeal.fr\/expertise\/#website","url":"https:\/\/www.nutrixeal.fr\/expertise\/","name":"Nutrixeal - Conseils","description":"L&#039;expertise nutraceutique","publisher":{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.nutrixeal.fr\/expertise\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/www.nutrixeal.fr\/expertise\/#organization","name":"Nutrixeal - Conseils","url":"https:\/\/www.nutrixeal.fr\/expertise\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.nutrixeal.fr\/expertise\/#\/schema\/logo\/image\/","url":"https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2025\/12\/logo-200.webp","contentUrl":"https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2025\/12\/logo-200.webp","width":200,"height":54,"caption":"Nutrixeal - Conseils"},"image":{"@id":"https:\/\/www.nutrixeal.fr\/expertise\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.nutrixeal.fr\/expertise\/#\/schema\/person\/1acc5b1e12666c939bf3ef6616321c15","name":"Equipe scientifique Nutrixeal","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/secure.gravatar.com\/avatar\/ad516503a11cd5ca435acc9bb6523536?s=96","url":"https:\/\/secure.gravatar.com\/avatar\/ad516503a11cd5ca435acc9bb6523536?s=96","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/ad516503a11cd5ca435acc9bb6523536?s=96","caption":"Equipe scientifique Nutrixeal"},"description":"Notre travail de r\u00e9daction est toujours une aventure collective. \u2192 D\u00e9couvrez l'\u00e9quipe de r\u00e9dacteurs scientifiques de Nutrixeal","url":"https:\/\/www.nutrixeal.fr\/expertise\/author\/equipe-scientifique\/"},{"@type":"Question","@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#faq-question-1787558776821","position":1,"url":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#faq-question-1787558776821","name":"La fatigue est-elle le seul signe d'une carence en vitamine B9 ?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Non. Un teint p\u00e2le, un souffle court, des sautes d'humeur ou un essoufflement accompagnent fr\u00e9quemment la carence, parfois avant la fatigue ressentie.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#faq-question-1787558804512","position":2,"url":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#faq-question-1787558804512","name":"Combien de temps faut-il pour voir les effets d'une cure ?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Comptez souvent plusieurs semaines pour normaliser le bilan sanguin. Le d\u00e9lai varie selon chaque profil, d'o\u00f9 l'int\u00e9r\u00eat d'un contr\u00f4le m\u00e9dical r\u00e9gulier.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#faq-question-1787558821222","position":3,"url":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-fatigue\/#faq-question-1787558821222","name":"La vitamine B9 peut-elle interagir avec d'autres vitamines ou min\u00e9raux ?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Oui. Elle collabore avec la vitamine B12 dans la production sanguine. Un exc\u00e8s de forme synth\u00e9tique peut d'ailleurs masquer un d\u00e9ficit de cette derni\u00e8re.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"}]}},"spectra_custom_meta":{"_edit_lock":["1789050611:2"],"yoast-structured-data-blocks-images-cache":["a:0:{}"],"_edit_last":["2"],"_yoast_wpseo_primary_category":["51"],"_yoast_wpseo_content_score":["90"],"_yoast_wpseo_estimated-reading-time-minutes":["11"],"_yoast_wpseo_focuskw":["vitamine B9 et fatigue"],"_yoast_wpseo_title":["Vitamine B9 et fatigue : d\u00e9couvrez la raison de votre fatigue"],"_yoast_wpseo_metadesc":["Fatigu\u00e9(e) ? Une carence en vitamine B9 pourrait en \u00eatre la cause. D\u00e9couvrez les sympt\u00f4mes et comment y rem\u00e9dier pour retrouver votre \u00e9nergie."],"_yoast_wpseo_linkdex":["84"],"_thumbnail_id":["1204"],"_wp_old_date":["2026-08-24"],"_uag_css_file_name":["uag-css-1191.css"],"_uag_page_assets":["a:9:{s:3:\"css\";s:17965:\".wp-block-uagb-advanced-heading h1,.wp-block-uagb-advanced-heading h2,.wp-block-uagb-advanced-heading h3,.wp-block-uagb-advanced-heading h4,.wp-block-uagb-advanced-heading h5,.wp-block-uagb-advanced-heading h6,.wp-block-uagb-advanced-heading p,.wp-block-uagb-advanced-heading div{word-break:break-word}.wp-block-uagb-advanced-heading .uagb-heading-text{margin:0}.wp-block-uagb-advanced-heading .uagb-desc-text{margin:0}.wp-block-uagb-advanced-heading .uagb-separator{font-size:0;border-top-style:solid;display:inline-block;margin:0 0 10px 0}.wp-block-uagb-advanced-heading .uagb-highlight{color:#f78a0c;border:0;transition:all .3s ease}.uag-highlight-toolbar{border-left:0;border-top:0;border-bottom:0;border-radius:0;border-right-color:#1e1e1e}.uag-highlight-toolbar .components-button{border-radius:0;outline:none}.uag-highlight-toolbar .components-button.is-primary{color:#fff}.wp-block-uagb-advanced-heading.uagb-block-8eef0148.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-8eef0148.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-8eef0148.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-8eef0148.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-f6b81ae6.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-f6b81ae6.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-f6b81ae6.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-f6b81ae6.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-68af758c.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-68af758c.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-68af758c.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-68af758c.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-c9529d31.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-c9529d31.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-c9529d31.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-c9529d31.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-7e8a5632.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-7e8a5632.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-7e8a5632.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-7e8a5632.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-b540bbd5.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-b540bbd5.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-b540bbd5.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-b540bbd5.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-14d76dbc.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-14d76dbc.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-14d76dbc.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-14d76dbc.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-4cdd7e25.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-4cdd7e25.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-4cdd7e25.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-4cdd7e25.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-b37f9ea1.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-b37f9ea1.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-b37f9ea1.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-b37f9ea1.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-c843db48.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-c843db48.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-c843db48.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-c843db48.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-06fb7844.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-06fb7844.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-06fb7844.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-06fb7844.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-a1274707.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-a1274707.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-a1274707.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-a1274707.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-f743cec2.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-f743cec2.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-f743cec2.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-f743cec2.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-478af4a4.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-478af4a4.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-478af4a4.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-478af4a4.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-97653483.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-97653483.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-97653483.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-97653483.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-2402a3a5.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-2402a3a5.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-2402a3a5.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-2402a3a5.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-3415bd98.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-3415bd98.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-3415bd98.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-3415bd98.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-58b764f0.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-58b764f0.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-58b764f0.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-58b764f0.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-85100428.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-85100428.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-85100428.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-85100428.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-508f9391.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-508f9391.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-508f9391.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-508f9391.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-82554cdc.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-82554cdc.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-82554cdc.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-82554cdc.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-a2c8af8d.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-a2c8af8d.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-a2c8af8d.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-a2c8af8d.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-e553df92.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-e553df92.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-e553df92.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-e553df92.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-8ea3048e.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-8ea3048e.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-8ea3048e.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-8ea3048e.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-8ea6e14e.wp-block-uagb-advanced-heading .uagb-desc-text{margin-bottom: 15px;}.wp-block-uagb-advanced-heading.uagb-block-8ea6e14e.wp-block-uagb-advanced-heading .uagb-highlight{font-style: normal;font-weight: Default;background: #007cba;color: #fff;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-8ea6e14e.wp-block-uagb-advanced-heading .uagb-highlight::-moz-selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.wp-block-uagb-advanced-heading.uagb-block-8ea6e14e.wp-block-uagb-advanced-heading .uagb-highlight::selection{color: #fff;background: #007cba;-webkit-text-fill-color: #fff;}.uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media(max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media(max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) !important}}\";s:2:\"js\";s:0:\"\";s:18:\"current_block_list\";a:15:{i:0;s:14:\"core\/paragraph\";i:1;s:17:\"nutrixeal\/callout\";i:2;s:9:\"core\/list\";i:3;s:14:\"core\/list-item\";i:4;s:21:\"uagb\/advanced-heading\";i:5;s:10:\"core\/table\";i:6;s:15:\"yoast\/faq-block\";i:7;s:28:\"nutrixeal\/prestashop-product\";i:8;s:11:\"core\/search\";i:9;s:10:\"core\/group\";i:10;s:12:\"core\/heading\";i:11;s:17:\"core\/latest-posts\";i:12;s:20:\"core\/latest-comments\";i:13;s:13:\"core\/archives\";i:14;s:15:\"core\/categories\";}s:8:\"uag_flag\";b:1;s:11:\"uag_version\";s:10:\"1789965120\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"]},"uagb_featured_image_src":{"full":["https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue.png",2172,724,false],"thumbnail":["https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue-150x150.png",150,150,true],"medium":["https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue-300x100.png",300,100,true],"medium_large":["https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue-768x256.png",768,256,true],"large":["https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue-1024x341.png",1024,341,true],"1536x1536":["https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue-1536x512.png",1536,512,true],"2048x2048":["https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue-2048x683.png",2048,683,true],"nutrixeal-card":["https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue-361x120.png",361,120,true],"nutrixeal-featured":["https:\/\/nutrixeal.b-cdn.net\/expertise\/wp-content\/uploads\/2026\/08\/VitamineB9_fatigue-1280x427.png",1280,427,true]},"uagb_author_info":{"display_name":"Equipe scientifique Nutrixeal","author_link":"https:\/\/www.nutrixeal.fr\/expertise\/author\/equipe-scientifique\/"},"uagb_comment_info":0,"uagb_excerpt":"Une fatigue persistante s&rsquo;installe parfois sans cause \u00e9vidente et p\u00e8se sur votre quotidien. Le lien entre fatigue et vitamine B9 m\u00e9rite alors votre attention. Le laboratoire Nutrixeal vous explique le r\u00f4le de cette vitamine dans votre vitalit\u00e9. Bien cerner ce m\u00e9canisme vous aide \u00e0 rep\u00e9rer rapidement un \u00e9ventuel manque et \u00e0 r\u00e9agir sans plus attendre.\u2026","_links":{"self":[{"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/posts\/1191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/comments?post=1191"}],"version-history":[{"count":5,"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/posts\/1191\/revisions"}],"predecessor-version":[{"id":1403,"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/posts\/1191\/revisions\/1403"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/media\/1204"}],"wp:attachment":[{"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/media?parent=1191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/categories?post=1191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nutrixeal.fr\/expertise\/wp-json\/wp\/v2\/tags?post=1191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}