{"id":1397,"date":"2026-09-28T14:00:00","date_gmt":"2026-09-28T13:00:00","guid":{"rendered":"https:\/\/www.nutrixeal.fr\/expertise\/?p=1397"},"modified":"2026-09-28T13:33:38","modified_gmt":"2026-09-28T12:33:38","slug":"magnesium-fatigue","status":"publish","type":"post","link":"https:\/\/www.nutrixeal.fr\/expertise\/magnesium-fatigue\/","title":{"rendered":"Magn\u00e9sium et fatigue&nbsp;: existe-t-il un lien&nbsp;?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Le magn\u00e9sium revient d\u00e8s qu&rsquo;on \u00e9voque un coup de mou passager. L&rsquo;association est si r\u00e9pandue qu&rsquo;on ne se demande plus vraiment d&rsquo;o\u00f9 elle vient, ni ce qu&rsquo;elle recouvre exactement. Elle m\u00e9rite pourtant qu&rsquo;on s&rsquo;y arr\u00eate, parce que le magn\u00e9sium n\u2019agit pas sur la fatigue de fa\u00e7on aussi simple qu\u2019on l\u2019imagine.<\/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 direct avec la fatigue<\/strong>&nbsp;: Le magn\u00e9sium contribue \u00e0 r\u00e9duire la fatigue, notamment via son r\u00f4le dans la production d\u2019\u00e9nergie cellulaire.<\/li>\n\n\n\n<li><strong>\u00c9nergie cellulaire<\/strong>&nbsp;: L\u2019ATP, carburant de l\u2019organisme, doit \u00eatre associ\u00e9 au magn\u00e9sium pour \u00eatre pleinement actif.<\/li>\n\n\n\n<li><strong>Signes d\u2019apport insuffisant<\/strong>&nbsp;: Fatigue persistante, crampes, tressaillements, irritabilit\u00e9 ou sommeil perturb\u00e9 peuvent accompagner un manque de magn\u00e9sium.<\/li>\n\n\n\n<li><strong>Besoins augment\u00e9s<\/strong>&nbsp;: Stress, sport intense, grossesse, allaitement, \u00e2ge, alcool ou certains traitements peuvent favoriser un d\u00e9ficit progressif.<\/li>\n\n\n\n<li><strong>Sources alimentaires cl\u00e9s<\/strong>&nbsp;: Cacao, chocolat noir, ol\u00e9agineux, c\u00e9r\u00e9ales compl\u00e8tes, l\u00e9gumineuses, \u00e9pinards et eaux min\u00e9rales renforcent les apports.<\/li>\n\n\n\n<li><strong>Compl\u00e9mentation adapt\u00e9e<\/strong>&nbsp;: Bisglycinate ou citrate sont \u00e0 privil\u00e9gier, avec une prise fractionn\u00e9e et une cure \u00e9valu\u00e9e sur un \u00e0 trois mois.<\/li>\n<\/ul>\n    <\/div>\r\n\r\n<\/section>\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-0b7fc7e4\"><h2 class=\"uagb-heading-text\">Qu&rsquo;est-ce que le magn\u00e9sium et pourquoi est-il essentiel&nbsp;?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le magn\u00e9sium est un min\u00e9ral indispensable, pr\u00e9sent dans tous les tissus de l&rsquo;organisme. La moiti\u00e9 se situe dans les os, l&rsquo;autre dans les muscles et les cellules, et moins de 1 % circule dans le sang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il est impliqu\u00e9 comme cofacteur dans plus de 300 r\u00e9actions enzymatiques. Il participe \u00e0 la transformation de l&rsquo;\u00e9nergie, \u00e0 la contraction des muscles, \u00e0 la transmission nerveuse et \u00e0 la synth\u00e8se des prot\u00e9ines, quatre fonctions parmi les plus fondamentales du vivant.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette omnipr\u00e9sence explique pourquoi le bon fonctionnement de l&rsquo;organisme d\u00e9pend d&rsquo;un apport r\u00e9gulier, et pourquoi son statut se ressent sur tant de terrains. Les&nbsp;<a href=\"https:\/\/www.nutrixeal.fr\/lexique-nutraceutique\/magnesium\">bienfaits du magn\u00e9sium<\/a>&nbsp;ne se limitent donc pas \u00e0 la vitalit\u00e9&nbsp;: l&rsquo;os, le muscle et l&rsquo;\u00e9quilibre \u00e9lectrolytique d\u00e9pendent tout autant de ces m\u00eames fonctions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;Anses retient, pour un apport satisfaisant, une r\u00e9f\u00e9rence quotidienne de 380 mg chez les hommes adultes et de 300 mg chez les femmes.<sup>[1]<\/sup>&nbsp;Les enqu\u00eates de consommation montrent qu&rsquo;une part importante de la population n&rsquo;atteint pas ces valeurs&nbsp;: les Fran\u00e7ais adultes comme les enfants sont concern\u00e9s.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-e7305457\"><h2 class=\"uagb-heading-text\">Quel est le lien entre magn\u00e9sium et fatigue&nbsp;?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le lien est direct&nbsp;: le magn\u00e9sium contribue \u00e0 r\u00e9duire la fatigue. C&rsquo;est l&rsquo;un des rares nutriments dont l&rsquo;effet porte explicitement sur cet \u00e9tat, et cela suffit \u00e0 expliquer sa r\u00e9putation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le m\u00e9canisme passe par la production d&rsquo;\u00e9nergie cellulaire, o\u00f9 il agit sur les r\u00e9actions qui rendent le carburant disponible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Concr\u00e8tement, chaque mol\u00e9cule d&rsquo;ATP, la monnaie \u00e9nerg\u00e9tique de l&rsquo;organisme, doit \u00eatre li\u00e9e \u00e0 un atome de magn\u00e9sium pour devenir active. Sans lui, la machinerie tourne au ralenti et le niveau de vitalit\u00e9 s&rsquo;en ressent.<\/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\">Une lassitude qui dure ne s&rsquo;explique pas toujours par ce seul min\u00e9ral. Le fer, la vitamine B12 et les troubles de la thyro\u00efde figurent parmi les causes les plus fr\u00e9quentes, et un bilan sanguin permet de les \u00e9carter avant d&rsquo;envisager quoi que ce soit d&rsquo;autre.<\/p>\n    <\/div>\r\n\r\n<\/section>\n\n\n<p class=\"wp-block-paragraph\">Ce lien ne signifie pas qu&rsquo;un apport suppl\u00e9mentaire produise un effet chez une personne d\u00e9j\u00e0 bien pourvue. L&rsquo;int\u00e9r\u00eat existe quand le statut est bas, pas au-del\u00e0, et les \u00e9tudes disponibles ne disent rien de plus.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-f27943d7\"><h2 class=\"uagb-heading-text\">Quels sont les signes d&rsquo;une carence en magn\u00e9sium qui causent la fatigue&nbsp;?<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-1dfde444\"><h3 class=\"uagb-heading-text\">Fatigue persistante et manque d&rsquo;\u00e9nergie<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est le signe le plus souvent cit\u00e9, et le moins sp\u00e9cifique. Un \u00e9puisement au r\u00e9veil, une baisse de r\u00e9gime en milieu d&rsquo;apr\u00e8s-midi, une r\u00e9cup\u00e9ration plus lente apr\u00e8s l&rsquo;effort&nbsp;: ces manifestations orientent sans rien prouver.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce qui doit alerter, c&rsquo;est l&rsquo;accumulation de plusieurs manifestations chez une personne dont l&rsquo;alimentation est pauvre en aliments riches. Isol\u00e9, ce sympt\u00f4me ne veut rien dire, et il est n\u00e9cessaire de le replacer dans son contexte.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un sommeil de mauvaise qualit\u00e9 accompagne souvent ce tableau, sans qu&rsquo;on puisse en tirer de conclusion. Les&nbsp;<a href=\"https:\/\/www.nutrixeal.fr\/expertise\/manque-magnesium-symptomes-solutions\/\">signes d&rsquo;un manque de magn\u00e9sium<\/a>&nbsp;se recoupent d&rsquo;ailleurs largement avec ceux d&rsquo;un d\u00e9ficit en fer, ce qui rend l&rsquo;autodiagnostic hasardeux.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-49b34619\"><h3 class=\"uagb-heading-text\">Crampes musculaires, tics et tremblements<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les crampes nocturnes, les tressaillements des paupi\u00e8res et les petits tics figurent parmi les manifestations les plus \u00e9vocatrices d&rsquo;un manque de magn\u00e9sium. Ce sont aussi les plus parlantes pour ceux qui les vivent.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;explication est coh\u00e9rente avec ce que l&rsquo;on sait de sa place dans la contraction&nbsp;: le muscle a besoin de calcium pour se contracter et de magn\u00e9sium pour se rel\u00e2cher. Un d\u00e9s\u00e9quilibre entre les deux se traduit par des contractions involontaires.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Des crampes r\u00e9p\u00e9t\u00e9es, surtout associ\u00e9es \u00e0 une activit\u00e9 physique intense ou \u00e0 une transpiration abondante, justifient de regarder son apport de plus pr\u00e8s.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-5956df12\"><h3 class=\"uagb-heading-text\">Irritabilit\u00e9, anxi\u00e9t\u00e9 et baisse de moral<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Ce registre est celui o\u00f9 la prudence s&rsquo;impose le plus. Une nervosit\u00e9 inhabituelle et une sensibilit\u00e9 accrue au stress accompagnent souvent un statut bas, mais l&rsquo;anxi\u00e9t\u00e9 est un trouble qui rel\u00e8ve d&rsquo;une prise en charge m\u00e9dicale.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce qui est bien \u00e9tabli, c\u2019est son r\u00f4le dans l\u2019\u00e9quilibre nerveux, notamment \u00e0 travers la r\u00e9gulation de certains neurotransmetteurs. Le stress peut aussi favoriser les pertes en magn\u00e9sium, entretenant ainsi le cercle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un mal-\u00eatre qui s&rsquo;installe doit conduire \u00e0 consulter, sans attendre de voir si une suppl\u00e9mentation change quelque chose.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-8ded5e0a\"><h2 class=\"uagb-heading-text\">Quelles sont les causes fr\u00e9quentes d&rsquo;un d\u00e9ficit en magn\u00e9sium&nbsp;?<\/h2><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La premi\u00e8re cause est alimentaire. Le raffinage des c\u00e9r\u00e9ales retire l&rsquo;essentiel du magn\u00e9sium du grain, et une alimentation construite autour de produits transform\u00e9s en apporte peu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le stress arrive en deuxi\u00e8me position. Il augmente l&rsquo;\u00e9limination urinaire, ce qui cr\u00e9e un cercle d\u00e9favorable&nbsp;: le stress \u00e9puise les r\u00e9serves, et un statut bas rend plus sensible au stress.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Certaines situations augmentent les besoins en magn\u00e9sium de fa\u00e7on nette. Les femmes enceintes, les sportifs soumis \u00e0 une activit\u00e9 physique intense, les personnes \u00e2g\u00e9es et les enfants en croissance sont concern\u00e9s au premier chef. La grossesse et l&rsquo;allaitement figurent parmi les p\u00e9riodes o\u00f9 l&rsquo;\u00e9cart se creuse le plus vite.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les m\u00e9dicaments jouent aussi un r\u00f4le m\u00e9connu. Diur\u00e9tiques, inhibiteurs de la pompe \u00e0 protons et certains traitements au long cours peuvent augmenter les pertes ou r\u00e9duire l&rsquo;absorption.<\/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\">L&rsquo;eau du robinet et certaines eaux min\u00e9rales constituent un apport non n\u00e9gligeable. Les plus riches en fournissent plus de 100 mg par litre.<\/p>\n    <\/div>\r\n\r\n<\/section>\n\n\n<p class=\"wp-block-paragraph\">La consommation d&rsquo;alcool et le manque de sommeil chronique compl\u00e8tent cette liste. Dans tous ces cas, le d\u00e9ficit s&rsquo;installe progressivement, sans signal d&rsquo;alarme franc.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-68624b8f\"><h2 class=\"uagb-heading-text\">Quels sont les bienfaits du magn\u00e9sium pour lutter contre la fatigue&nbsp;?<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-54f66dfb\"><h3 class=\"uagb-heading-text\">Am\u00e9lioration de la production d&rsquo;\u00e9nergie<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est le socle de tout le reste. Le magn\u00e9sium intervient dans le m\u00e9tabolisme \u00e9nerg\u00e9tique comme cofacteur obligatoire, \u00e0 chaque \u00e9tape de la cha\u00eene qui transforme les aliments en carburant utilisable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cela explique pourquoi un statut bas se ressent d&rsquo;abord sur la vitalit\u00e9 g\u00e9n\u00e9rale. Priv\u00e9 de ce cofacteur, l&rsquo;organisme fabrique moins efficacement le carburant n\u00e9cessaire au bon fonctionnement quotidien.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-31979d8f\"><h3 class=\"uagb-heading-text\">R\u00e9duction de la fatigue physique et musculaire<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">C&rsquo;est ici que son int\u00e9r\u00eat est le plus direct, puisque le magn\u00e9sium contribue \u00e0 r\u00e9duire la fatigue. Le versant musculaire s&rsquo;y ajoute, avec sa place dans le rel\u00e2chement de la fibre apr\u00e8s contraction.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les douleurs musculaires apr\u00e8s l&rsquo;effort et la lenteur de r\u00e9cup\u00e9ration sont souvent rapport\u00e9es par les sportifs dont l&rsquo;apport est insuffisant. La transpiration augmente les pertes, ce qui rend ce public particuli\u00e8rement expos\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une&nbsp;<a href=\"https:\/\/www.nutrixeal.fr\/expertise\/magnesium-cure\/\">cure de magn\u00e9sium<\/a> peut donc \u00eatre int\u00e9ressante lors d\u2019une p\u00e9riode exigeante.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-914bc14f\"><h3 class=\"uagb-heading-text\">Soutien du syst\u00e8me nerveux et gestion du stress<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le magn\u00e9sium contribue au fonctionnement normal du syst\u00e8me nerveux, ce qui sous-tend la plupart de ses usages en p\u00e9riode charg\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le m\u00e9canisme est bien d\u00e9crit&nbsp;: il r\u00e9gule l&rsquo;entr\u00e9e du calcium dans les cellules nerveuses et module l&rsquo;excitabilit\u00e9 neuronale. C&rsquo;est ce qui explique le lien avec la nervosit\u00e9 et la sensibilit\u00e9 au stress.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La vitamine B6 est un actif int\u00e9ressant \u00e0 associer au magn\u00e9sium, les deux agissant en compl\u00e9mentarit\u00e9.&nbsp;<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-2b5d3f6b\"><h2 class=\"uagb-heading-text\">Comment optimiser vos apports en magn\u00e9sium&nbsp;?<\/h2><\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-2fa4dc3e\"><h3 class=\"uagb-heading-text\">Les meilleures sources alimentaires de magn\u00e9sium<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le cacao arrive largement en t\u00eate, avec pr\u00e8s de 500 mg pour 100 g de poudre non sucr\u00e9e. Le chocolat noir suit de pr\u00e8s, \u00e0 condition de lire le pourcentage de cacao annonc\u00e9&nbsp;: en consommer un carr\u00e9 par jour n&rsquo;a rien d&rsquo;anecdotique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les ol\u00e9agineux constituent la deuxi\u00e8me famille&nbsp;: amandes, noix de cajou, noisettes en fournissent entre 200 et 300 mg pour 100 g.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Viennent ensuite les c\u00e9r\u00e9ales compl\u00e8tes, les l\u00e9gumineuses, les \u00e9pinards et les eaux min\u00e9rales. Une alimentation vari\u00e9e et peu transform\u00e9e suffit en th\u00e9orie \u00e0 maintenir un statut correct.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En pratique, l&rsquo;appauvrissement des sols et le raffinage compliquent l&rsquo;\u00e9quation. C&rsquo;est ce d\u00e9calage qui explique la fr\u00e9quence des apports insuffisants malgr\u00e9 une alimentation en apparence correcte.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-9359d7e7\"><h3 class=\"uagb-heading-text\">L&rsquo;importance de choisir la bonne forme de magn\u00e9sium (bisglycinate, marin, etc.)<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Toutes les formes ne se valent pas, et la diff\u00e9rence porte sur l&rsquo;assimilation. Les sels inorganiques comme l&rsquo;oxyde affichent des teneurs \u00e9lev\u00e9es mais un passage m\u00e9diocre, avec un effet laxatif fr\u00e9quent.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le&nbsp;<a href=\"https:\/\/www.nutrixeal.fr\/178-magnesium-bisglycinate-qualite-albion-traacs.html\">magn\u00e9sium bisglycinate<\/a>&nbsp;figure parmi les formes les mieux tol\u00e9r\u00e9es. Le min\u00e9ral y est li\u00e9 \u00e0 deux mol\u00e9cules de glycine, ce qui lui ouvre une voie d&rsquo;absorption distincte des autres sels.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le citrate et le malate offrent \u00e9galement un bon compromis. Le magn\u00e9sium marin, souvent mis en avant, correspond en r\u00e9alit\u00e9 \u00e0 un m\u00e9lange de sels peu assimilables&nbsp;: son nom vend mieux que sa composition, et mieux vaut le v\u00e9rifier avant d&rsquo;acheter.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Prenez le temps de lire la teneur en magn\u00e9sium \u00e9l\u00e9ment, celle qui compte r\u00e9ellement, et non le poids total du sel indiqu\u00e9 sur l&rsquo;\u00e9tiquette. Les&nbsp;<a href=\"https:\/\/www.nutrixeal.fr\/66-magnesium\">compl\u00e9ments alimentaires de magn\u00e9sium<\/a>&nbsp;s\u00e9rieux affichent clairement cette distinction.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-640c785e\"><h3 class=\"uagb-heading-text\">Quand et comment prendre un compl\u00e9ment alimentaire en magn\u00e9sium&nbsp;?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Fractionnez les prises plut\u00f4t que de tout avaler en une fois. Deux ou trois moments r\u00e9partis dans la journ\u00e9e aident \u00e0 am\u00e9liorer l&rsquo;assimilation et r\u00e9duisent le risque de d\u00e9sagr\u00e9ment intestinal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le moment de la journ\u00e9e importe peu. Une prise au cours d&rsquo;un repas aide \u00e0 limiter les inconforts digestifs, et une prise le soir est pr\u00e9f\u00e9rable, surtout quand l\u2019objectif est d\u2019installer un climat de d\u00e9tente avant le coucher.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Comptez un \u00e0 trois mois avant d&rsquo;\u00e9valuer quoi que ce soit. Les tissus se rechargent lentement, et juger de l\u2019efficacit\u00e9 d\u2019une cure au bout d&rsquo;une semaine n&rsquo;a aucun sens.<\/p>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-1003b827\"><h2 class=\"uagb-heading-text\">Questions fr\u00e9quentes sur le magn\u00e9sium et la fatigue<\/h2><\/div>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1788961114815\"><strong class=\"schema-faq-question\">Comment savoir si je manque de magn\u00e9sium&nbsp;?<\/strong> <p class=\"schema-faq-answer\">Le dosage sanguin est peu informatif, puisque la concentration sanguine ne refl\u00e8te que moins de 1 % du stock. Un r\u00e9sultat normal n&rsquo;exclut pas un d\u00e9ficit tissulaire, ce qui limite fortement son int\u00e9r\u00eat.<br>L&rsquo;\u00e9valuation repose donc surtout sur l&rsquo;alimentation et sur le tableau d&rsquo;ensemble. Votre m\u00e9decin ou un autre professionnel de sant\u00e9 reste le mieux plac\u00e9 pour faire la part des choses, et nos conseils ne remplacent pas cet avis.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1788961131926\"><strong class=\"schema-faq-question\">Quelle dose de magn\u00e9sium me faut-il&nbsp;?<\/strong> <p class=\"schema-faq-answer\">Les valeurs de r\u00e9f\u00e9rence cit\u00e9es plus haut dans cet article servent de base.<sup>[1]<\/sup> En compl\u00e9ment, on retient g\u00e9n\u00e9ralement 200 \u00e0 250 mg quotidiens, une quantit\u00e9 qui vient s&rsquo;ajouter \u00e0 l&rsquo;alimentation sans la remplacer.<br>La\u00a0<a href=\"https:\/\/www.nutrixeal.fr\/expertise\/magnesium-combien-par-jour\/\">quantit\u00e9 de magn\u00e9sium par jour<\/a>\u00a0varie selon l&rsquo;\u00e2ge, le sexe et le mode de vie, et nos articles reprennent ces conseils cas par cas.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1788961145449\"><strong class=\"schema-faq-question\">Peut-on prendre du magn\u00e9sium avec d&rsquo;autres min\u00e9raux ou vitamines&nbsp;?<\/strong> <p class=\"schema-faq-answer\">Oui, sans difficult\u00e9 particuli\u00e8re. La vitamine B6, la vitamine D et le potassium se combinent sans probl\u00e8me. \u00a0Pour le fer, le zinc et le calcium, il est g\u00e9n\u00e9ralement conseill\u00e9 d\u2019espacer les prises afin de limiter les ph\u00e9nom\u00e8nes de concurrence au niveau de l\u2019absorption. Avec une forme ch\u00e9lat\u00e9e de magn\u00e9sium, comme le bisglycinate, ces interactions sont toutefois moins marqu\u00e9es<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1788961164485\"><strong class=\"schema-faq-question\">Y a-t-il des risques \u00e0 prendre trop de magn\u00e9sium&nbsp;?<\/strong> <p class=\"schema-faq-answer\">Le principal effet d&rsquo;un exc\u00e8s est laxatif, et il appara\u00eet bien avant tout risque s\u00e9rieux chez une personne dont la fonction r\u00e9nale est normale. C&rsquo;est un signal facile \u00e0 identifier.<br>Les autorit\u00e9s de sant\u00e9 en France fixent la limite de s\u00e9curit\u00e9 \u00e0 360 mg quotidiens pour les sels solubles, en plus de l&rsquo;alimentation. Au-del\u00e0, les conseils d&rsquo;un professionnel s&rsquo;imposent, en particulier en cas d&rsquo;insuffisance r\u00e9nale&nbsp;: c&rsquo;est la meilleure fa\u00e7on d&rsquo;\u00e9viter une erreur.<\/p> <\/div> <\/div>\n\n\n\n<div class=\"wp-block-uagb-advanced-heading uagb-block-ac438fd9\"><h2 class=\"uagb-heading-text\">Sources<\/h2><\/div>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Anses. Les r\u00e9f\u00e9rences nutritionnelles en vitamines et min\u00e9raux. Rapport d&rsquo;expertise collective, 2021. Disponible sur https:\/\/www.anses.fr<\/li>\n\n\n\n<li>Anses. Avis relatif aux limites de s\u00e9curit\u00e9 en vitamines et min\u00e9raux dans les compl\u00e9ments alimentaires. Disponible sur <a href=\"https:\/\/www.anses.fr\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">https:\/\/www.anses.fr<\/a><\/li>\n<\/ol>\n\n\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Le magn\u00e9sium revient d\u00e8s qu&rsquo;on \u00e9voque un coup de mou passager. L&rsquo;association est si r\u00e9pandue qu&rsquo;on ne se demande plus vraiment d&rsquo;o\u00f9 elle vient, ni ce qu&rsquo;elle recouvre exactement. Elle m\u00e9rite pourtant qu&rsquo;on s&rsquo;y arr\u00eate, parce que le magn\u00e9sium n\u2019agit pas sur la fatigue de fa\u00e7on aussi simple qu\u2019on l\u2019imagine. Qu&rsquo;est-ce que le magn\u00e9sium et [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1604,"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":[48,35],"tags":[],"class_list":["post-1397","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-fatigue","category-articles-magnesium"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Magn\u00e9sium et fatigue : d\u00e9couvrez les effets de ce micronutriment<\/title>\n<meta name=\"description\" content=\"Fatigue, crampes, stress ? 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scientifique Nutrixeal","author_link":"https:\/\/www.nutrixeal.fr\/expertise\/author\/equipe-scientifique\/"},"uagb_comment_info":0,"uagb_excerpt":"Le magn\u00e9sium revient d\u00e8s qu&rsquo;on \u00e9voque un coup de mou passager. L&rsquo;association est si r\u00e9pandue qu&rsquo;on ne se demande plus vraiment d&rsquo;o\u00f9 elle vient, ni ce qu&rsquo;elle recouvre exactement. Elle m\u00e9rite pourtant qu&rsquo;on s&rsquo;y arr\u00eate, parce que le magn\u00e9sium n\u2019agit pas sur la fatigue de fa\u00e7on aussi simple qu\u2019on l\u2019imagine. 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