{"id":1218,"date":"2026-09-23T14:24:29","date_gmt":"2026-09-23T13:24:29","guid":{"rendered":"https:\/\/www.nutrixeal.fr\/expertise\/?p=1218"},"modified":"2026-09-22T14:24:45","modified_gmt":"2026-09-22T13:24:45","slug":"vitamine-b9-grossesse","status":"publish","type":"post","link":"https:\/\/www.nutrixeal.fr\/expertise\/vitamine-b9-grossesse\/","title":{"rendered":"Grossesse et vitamine B9 (acide folique)&nbsp;: tout ce qu&rsquo;il faut savoir"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">La vitamine B9 pendant la grossesse occupe une place centrale d\u00e8s le d\u00e9sir d&rsquo;enfant. Au laboratoire Nutrixeal, nous accompagnons les futures mamans avec des rep\u00e8res clairs et fiables. Cette vitamine, aussi appel\u00e9e acide folique, soutient le bon d\u00e9roulement des premi\u00e8res semaines. Vous d\u00e9couvrirez ici son r\u00f4le, vos besoins et les cl\u00e9s pour bien vous pr\u00e9parer.<\/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>\u00c0 anticiper avant grossesse<\/strong>&nbsp;: La vitamine B9 se pr\u00e9pare id\u00e9alement d\u00e8s le d\u00e9sir d\u2019enfant, car les besoins augmentent tr\u00e8s t\u00f4t.<\/li>\n\n\n\n<li><strong>Premi\u00e8res semaines d\u00e9cisives<\/strong>&nbsp;: Le tube neural se referme autour du 28e jour, souvent avant m\u00eame que la grossesse soit connue.<\/li>\n\n\n\n<li><strong>Soutien des tissus maternels<\/strong>&nbsp;: La vitamine B9 contribue \u00e0 la croissance des tissus maternels et accompagne la multiplication cellulaire intense.<\/li>\n\n\n\n<li><strong>Apport compl\u00e9mentaire recommand\u00e9<\/strong>&nbsp;: Un suppl\u00e9ment de 400 \u00b5g par jour est conseill\u00e9 en p\u00e9riode p\u00e9riconceptionnelle, avec un suivi m\u00e9dical adapt\u00e9.<\/li>\n\n\n\n<li><strong>Sources alimentaires utiles<\/strong>&nbsp;: L\u00e9gumes verts, l\u00e9gumineuses, foie, levure alimentaire, fruits et c\u00e9r\u00e9ales compl\u00e8tes apportent naturellement des folates.<\/li>\n\n\n\n<li><strong>Forme active int\u00e9ressante<\/strong>&nbsp;: Le 5-MTHF correspond \u00e0 une forme directement active, \u00e0 privil\u00e9gier dans votre suppl\u00e9mentation.<\/li>\n<\/ul>\n    <\/div>\r\n\r\n<\/section>\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-5786aad0\"><h2 class=\"uagb-heading-text\">Qu&rsquo;est-ce que la vitamine B9 (acide folique) et quel est son r\u00f4le&nbsp;?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La vitamine B9 est une vitamine hydrosoluble que votre organisme ne conserve pas durablement. Un apport r\u00e9gulier reste donc n\u00e9cessaire. Elle intervient dans la formation normale du sang et dans la synth\u00e8se normale des acides amin\u00e9s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette vitamine participe aussi \u00e0 des fonctions psychologiques normales et au fonctionnement normal du syst\u00e8me immunitaire. Son r\u00f4le s&rsquo;av\u00e8re important lors des p\u00e9riodes de forte demande.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-71f4cb7a\"><h2 class=\"uagb-heading-text\">Pourquoi la vitamine B9 est-elle essentielle avant et pendant la grossesse&nbsp;?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les besoins en vitamine B9 grimpent nettement avant m\u00eame le d\u00e9but de la grossesse. D\u00e8s le d\u00e9sir d&rsquo;enfant, votre corps pr\u00e9pare les tissus qui accueilleront l&#8217;embryon. Elle contribue alors \u00e0 la croissance des tissus maternels durant la grossesse [1]. Un apport adapt\u00e9 soutient aussi le bon d\u00e9roulement des toutes premi\u00e8res semaines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bon \u00e0 savoir&nbsp;: le tube neural, \u00e9bauche du cerveau et de la moelle \u00e9pini\u00e8re, se referme autour du vingt-huiti\u00e8me jour. \u00c0 ce moment, de nombreuses femmes ignorent encore leur grossesse. Constituer de bons apports d\u00e8s les premiers jours prend alors tout son sens [3].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un <a href=\"https:\/\/www.nutrixeal.fr\/229-vitamine-b9-folates\">apport compl\u00e9mentaire d&rsquo;acide folique<\/a> am\u00e9liore le statut maternel en folates. Cela aide \u00e0 r\u00e9duire le risque de d\u00e9fauts de fermeture chez le f\u0153tus en d\u00e9veloppement [2]. Ces anomalies d\u00e9pendent toutefois de multiples facteurs, et modifier l&rsquo;un d&rsquo;eux peut ou non avoir un effet b\u00e9n\u00e9fique [1]. Voil\u00e0 pourquoi les autorit\u00e9s de sant\u00e9 encouragent une pr\u00e9paration anticip\u00e9e.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-4aaefcd3\"><h2 class=\"uagb-heading-text\">Les bienfaits de l&rsquo;acide folique pour la fertilit\u00e9 et la conception<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-9645e0da\"><h3 class=\"uagb-heading-text\">L&rsquo;acide folique aide-t-il \u00e0 tomber enceinte&nbsp;?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Cette question revient souvent, et la r\u00e9ponse m\u00e9rite de la nuance. L&rsquo;acide folique n&rsquo;augmente pas la fertilit\u00e9 et ne d\u00e9clenche pas une grossesse plus vite. Son int\u00e9r\u00eat se situe ailleurs&nbsp;: pr\u00e9parer de bonnes r\u00e9serves avant la conception. Beaucoup de futures mamans d\u00e9marrent leur grossesse avec des apports insuffisants [4]. Anticiper permet d&rsquo;aborder les premi\u00e8res semaines sereinement, quand les besoins deviennent plus \u00e9lev\u00e9s.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-b6effb47\"><h3 class=\"uagb-heading-text\">Quand commencer la suppl\u00e9mentation en acide folique&nbsp;?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le bon moment se situe en amont, et non une fois le test positif. Les autorit\u00e9s de sant\u00e9 conseillent de d\u00e9buter au moins quatre semaines avant de concevoir [3]. Cette avance compte, car les premi\u00e8res structures se forment tr\u00e8s t\u00f4t. Si vous l&rsquo;apprenez sans pr\u00e9paration pr\u00e9alable, agissez sans attendre et sollicitez votre m\u00e9decin ou votre sage-femme [3]. Chaque situation reste particuli\u00e8re, d&rsquo;o\u00f9 l&rsquo;int\u00e9r\u00eat d&rsquo;un suivi adapt\u00e9 \u00e0 votre projet.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-381adcab\"><h2 class=\"uagb-heading-text\">L&rsquo;importance de la vitamine B9 pendant toute la grossesse<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-22cbf861\"><h3 class=\"uagb-heading-text\">La vitamine B9 pendant le premier trimestre&nbsp;: une p\u00e9riode critique<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le premier trimestre concentre les \u00e9tapes les plus d\u00e9licates du d\u00e9veloppement. En quelques semaines, l&#8217;embryon met en place son syst\u00e8me nerveux et ses principaux organes. Elle accompagne cette phase de multiplication cellulaire intense [1].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vos besoins atteignent alors leur maximum, autour de six cents microgrammes par jour [1]. Un d\u00e9ficit \u00e0 ce stade pr\u00e9cis p\u00e8se davantage qu&rsquo;\u00e0 toute autre p\u00e9riode. Les professionnels de sant\u00e9 insistent donc sur un apport r\u00e9gulier d\u00e8s les tout premiers jours.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-6819f591\"><h3 class=\"uagb-heading-text\">Faut-il continuer la suppl\u00e9mentation apr\u00e8s le premier trimestre&nbsp;?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Apr\u00e8s les douze premi\u00e8res semaines, les structures majeures ont achev\u00e9 leur fermeture. Ces besoins diminuent alors quelque peu, sans pour autant dispara\u00eetre. La vitamine B9 continue de soutenir la formation normale du sang et le renouvellement des cellules [1]. Elle contribue aussi \u00e0 r\u00e9duire la fatigue, fr\u00e9quente au fil des mois [1].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De nombreux professionnels conseillent de poursuivre un apport mod\u00e9r\u00e9 jusqu&rsquo;\u00e0 l&rsquo;accouchement, puis pendant l&rsquo;allaitement [3]. Votre suivi m\u00e9dical demeure le meilleur rep\u00e8re pour ajuster la dur\u00e9e et la dose.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-25c06ec7\"><h2 class=\"uagb-heading-text\">Carence en vitamine B9&nbsp;: quels sont les risques et cons\u00e9quences pour la m\u00e8re et le b\u00e9b\u00e9&nbsp;?<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-f5faba9b\"><h3 class=\"uagb-heading-text\">Sympt\u00f4mes d&rsquo;une carence en vitamine B9<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Une carence en vitamine B9 s&rsquo;installe parfois discr\u00e8tement, sans signe \u00e9vident au d\u00e9part. Certains signaux m\u00e9ritent n\u00e9anmoins votre attention.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bon \u00e0 savoir&nbsp;: une fatigue inhabituelle, une p\u00e2leur, un essoufflement ou une irritabilit\u00e9 peuvent accompagner un manque de cette vitamine. Ces signes restent peu sp\u00e9cifiques et se retrouvent dans d&rsquo;autres situations. Seul un bilan sanguin, prescrit par votre m\u00e9decin, confirme r\u00e9ellement un d\u00e9ficit [4].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chez la future maman, la vigilance s&rsquo;impose davantage, car les besoins augmentent. Un d\u00e9pistage simple objective la situation et guide l&rsquo;ajustement de vos apports. Nous vous encourageons \u00e0 ne jamais poser vous-m\u00eame ce diagnostic et \u00e0 privil\u00e9gier l&rsquo;avis d&rsquo;un professionnel.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-70af54cc\"><h3 class=\"uagb-heading-text\">Risques de malformations cong\u00e9nitales chez le f\u0153tus<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Un statut insuffisant en folates chez la m\u00e8re figure parmi les facteurs de risque d&rsquo;anomalies de fermeture du tube neural [1]. Ces malformations, comme le spina-bifida, apparaissent durant les toutes premi\u00e8res semaines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D&rsquo;autres \u00e9l\u00e9ments entrent en jeu&nbsp;: ant\u00e9c\u00e9dents familiaux, diab\u00e8te ou certains traitements [1]. La modification d&rsquo;un seul de ces facteurs peut ou non avoir un effet b\u00e9n\u00e9fique. Un bon statut d\u00e8s le d\u00e9sir d&rsquo;enfant, associ\u00e9 \u00e0 un suivi m\u00e9dical, reste la d\u00e9marche conseill\u00e9e [2].<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-5002588e\"><h3 class=\"uagb-heading-text\">Impact d&rsquo;un manque d&rsquo;acide folique sur la sant\u00e9 de la m\u00e8re<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Un d\u00e9ficit ne concerne pas uniquement le b\u00e9b\u00e9. Chez la m\u00e8re, il peut favoriser une forme d&rsquo;an\u00e9mie, marqu\u00e9e par une grande fatigue et un teint p\u00e2le [4]. La vitamine B9 contribue en effet \u00e0 la formation normale du sang [1].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un manque prolong\u00e9 perturbe aussi le renouvellement des globules rouges. R\u00e9tablir de bons apports, sous supervision m\u00e9dicale, aide votre organisme \u00e0 retrouver son \u00e9quilibre au quotidien.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-b0c73fb5\"><h2 class=\"uagb-heading-text\">O\u00f9 trouver la vitamine B9&nbsp;: sources alimentaires et compl\u00e9ments<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-25db76c5\"><h3 class=\"uagb-heading-text\">Aliments riches en vitamine B9 (folates)&nbsp;: fruits, l\u00e9gumes, c\u00e9r\u00e9ales&#8230;<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Une alimentation vari\u00e9e couvre une bonne partie de vos besoins en vitamine B9. Plusieurs familles se montrent particuli\u00e8rement g\u00e9n\u00e9reuses en folates&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>les l\u00e9gumes verts \u00e0 feuilles&nbsp;: \u00e9pinards, choux, salades&nbsp;;<\/li>\n\n\n\n<li>les l\u00e9gumineuses&nbsp;: lentilles, pois chiches, f\u00e8ves&nbsp;;<\/li>\n\n\n\n<li>le foie et la levure alimentaire&nbsp;;<\/li>\n\n\n\n<li>certains fruits et les c\u00e9r\u00e9ales compl\u00e8tes.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">La cuisson et l&rsquo;eau de trempage font perdre une large part de ces apports [5]. Privil\u00e9giez des modes de pr\u00e9paration doux pour pr\u00e9server leur teneur.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-a408b5ac\"><h3 class=\"uagb-heading-text\">Compl\u00e9ments alimentaires en vitamine B9&nbsp;: quand et comment les prendre&nbsp;?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;alimentation ne suffit pas toujours \u00e0 atteindre les apports conseill\u00e9s, surtout avant et pendant la grossesse. Les compl\u00e9ments alimentaires en vitamine B9 offrent alors un relais simple et fiable [3].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Prenez-les de pr\u00e9f\u00e9rence \u00e0 heure fixe pour ancrer l&rsquo;habitude. Nous vous conseillons de choisir un produit bien dos\u00e9, de bonne qualit\u00e9 et apportant la forme active de la vitamine. Demandez l&rsquo;avis de votre pharmacien ou de votre m\u00e9decin avant toute nouvelle prise.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-9c74c1dd\"><h2 class=\"uagb-heading-text\">Posologie et recommandations pour la suppl\u00e9mentation en acide folique<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-e0322d6d\"><h3 class=\"uagb-heading-text\">Quelle est la dose journali\u00e8re recommand\u00e9e d&rsquo;acide folique&nbsp;?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La r\u00e9f\u00e9rence la plus partag\u00e9e s&rsquo;\u00e9tablit \u00e0 quatre cents microgrammes par jour en p\u00e9riode p\u00e9riconceptionnelle [1]. Cet apport, soit 0,4 mg par jour, concerne les femmes qui pr\u00e9parent une grossesse.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bon \u00e0 savoir&nbsp;: une femme ayant d\u00e9j\u00e0 attendu un enfant touch\u00e9 par une anomalie de fermeture re\u00e7oit parfois une dose bien plus \u00e9lev\u00e9e, sur prescription. Cette adaptation rel\u00e8ve strictement de votre m\u00e9decin et ne s&rsquo;improvise jamais seule [3].<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>P\u00e9riode<\/th><th>Apport conseill\u00e9 en vitamine B9<\/th><\/tr><\/thead><tbody><tr><td>P\u00e9riconception et d\u00e9but de grossesse<\/td><td>Environ 600 \u00b5g par jour, dont 400 \u00b5g via un compl\u00e9ment<\/td><\/tr><tr><td>Suite de la grossesse<\/td><td>Apport adapt\u00e9 selon le suivi m\u00e9dical<\/td><\/tr><tr><td>Allaitement<\/td><td>Environ 500 \u00b5g par jour<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ces rep\u00e8res varient selon votre histoire m\u00e9dicale et vos \u00e9ventuels besoins sp\u00e9cifiques. La forme m\u00e9thyl\u00e9e convient mieux \u00e0 certaines personnes, nous y revenons juste apr\u00e8s. Un professionnel de sant\u00e9 demeure le mieux plac\u00e9 pour fixer la posologie qui vous correspond.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-226e593b\"><h3 class=\"uagb-heading-text\">Dur\u00e9e de la suppl\u00e9mentation&nbsp;: avant, pendant et apr\u00e8s la grossesse<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La dur\u00e9e id\u00e9ale couvre trois temps distincts. Elle commence au moins quatre semaines avant la mise en route du projet, se poursuit durant tout le premier trimestre, puis s&rsquo;ajuste ensuite [3].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De futures mamans prolongent un apport mod\u00e9r\u00e9 jusqu&rsquo;\u00e0 l&rsquo;accouchement, voire pendant l&rsquo;allaitement [1]. Cette continuit\u00e9 soutient \u00e0 la fois votre \u00e9quilibre et vos besoins du moment. Elle accompagne ainsi l&rsquo;ensemble de cette aventure, du d\u00e9sir d&rsquo;enfant aux premi\u00e8res semaines de vie.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-6a15647e\"><h3 class=\"uagb-heading-text\">Les diff\u00e9rentes formes de suppl\u00e9ments de vitamine B9<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La vitamine B9 existe sous plusieurs formes, aux propri\u00e9t\u00e9s distinctes. L&rsquo;acide folique, version synth\u00e9tique et stable, sert de r\u00e9f\u00e9rence dans la plupart des produits [6]. Les folates alimentaires, quant \u00e0 eux, se r\u00e9v\u00e8lent bien plus fragiles. La forme m\u00e9thyl\u00e9e, appel\u00e9e 5-MTHF, correspond \u00e0 la version directement active de cette vitamine [6].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Elle affiche une bonne assimilation, utile lorsque l&rsquo;organisme transforme moins bien la forme synth\u00e9tique. Le choix d\u00e9pend de votre profil et des conseils de votre professionnel de sant\u00e9.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-3be76dfa\"><h2 class=\"uagb-heading-text\">Acide folique et grossesse&nbsp;: questions fr\u00e9quentes et id\u00e9es re\u00e7ues<\/h2><\/div>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1787650112212\"><strong class=\"schema-faq-question\">Quelle est la diff\u00e9rence entre vitamine B9, acide folique et folate&nbsp;?<\/strong> <p class=\"schema-faq-answer\">Ces trois mots d\u00e9signent le m\u00eame nutriment. Le folate provient de l&rsquo;alimentation, l&rsquo;acide folique de la suppl\u00e9mentation, et la vitamine B9 r\u00e9unit ces deux appellations.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1787650116986\"><strong class=\"schema-faq-question\">Peut-on prendre trop d&rsquo;acide folique&nbsp;? Risques de surdosage<\/strong> <p class=\"schema-faq-answer\">Un exc\u00e8s reste rare par la seule alimentation. Les autorit\u00e9s fixent une limite de s\u00e9curit\u00e9 \u00e0 1 000 \u00b5g par jour chez l&rsquo;adulte [1]. Respectez donc les doses conseill\u00e9es.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1787650116440\"><strong class=\"schema-faq-question\">Faut-il une prescription m\u00e9dicale pour l&rsquo;acide folique&nbsp;?<\/strong> <p class=\"schema-faq-answer\">Aux doses usuelles, l&rsquo;acide folique s&rsquo;obtient librement. Des dosages nettement plus \u00e9lev\u00e9s rel\u00e8vent, eux, d&rsquo;une prescription. Dans tous les cas, un avis m\u00e9dical oriente utilement votre choix.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1787650160923\"><strong class=\"schema-faq-question\">Acide folique, fer et vitamine B12&nbsp;: les associations utiles<\/strong> <p class=\"schema-faq-answer\">L&rsquo;acide folique agit en synergie avec la vitamine B12 pour le m\u00e9tabolisme normal de l&rsquo;homocyst\u00e9ine [1]. Le fer, souvent associ\u00e9 durant la grossesse, compl\u00e8te utilement cet ensemble en cas de carence.<\/p> <\/div> <\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-31dffe0c\"><h2 class=\"uagb-heading-text\">R\u00e9f\u00e9rences<\/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), R\u00e9f\u00e9rences nutritionnelles en vitamines et min\u00e9raux, rapport 2021.<\/li>\n\n\n\n<li>EFSA (Autorit\u00e9 europ\u00e9enne de s\u00e9curit\u00e9 des aliments), avis scientifique sur l&rsquo;acide folique et le statut maternel&nbsp;; r\u00e8glement (UE) n\u00b0 1135\/2014.<\/li>\n\n\n\n<li>Minist\u00e8re de la Sant\u00e9 et Haute Autorit\u00e9 de Sant\u00e9 (HAS), Guide sur les folates et la suppl\u00e9mentation p\u00e9riconceptionnelle.<\/li>\n\n\n\n<li>Sant\u00e9 publique France, donn\u00e9es sur les apports en vitamine B9 et \u00e9tude individuelle nationale des consommations alimentaires (INCA 3).<\/li>\n\n\n\n<li>Organisation mondiale de la sant\u00e9 (OMS), recommandations sur la suppl\u00e9mentation en acide folique en p\u00e9riode p\u00e9riconceptionnelle.<\/li>\n\n\n\n<li>ANSES, Table de composition nutritionnelle Ciqual, 2020.<\/li>\n<\/ol>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>La vitamine B9 pendant la grossesse occupe une place centrale d\u00e8s le d\u00e9sir d&rsquo;enfant. Au laboratoire Nutrixeal, nous accompagnons les futures mamans avec des rep\u00e8res clairs et fiables. Cette vitamine, aussi appel\u00e9e acide folique, soutient le bon d\u00e9roulement des premi\u00e8res semaines. Vous d\u00e9couvrirez ici son r\u00f4le, vos besoins et les cl\u00e9s pour bien vous pr\u00e9parer. [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1219,"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":[29,32,51],"tags":[],"class_list":["post-1218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-fertilite","category-articles-grossesse","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 grossesse : pourquoi c&#039;est crucial ?<\/title>\n<meta name=\"description\" content=\"Grossesse et vitamine B9 : essentielle pour le d\u00e9veloppement du f\u0153tus &amp; pr\u00e9venir les malformations. 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