{"id":7009,"date":"2022-07-12T19:03:14","date_gmt":"2022-07-12T19:03:14","guid":{"rendered":"https:\/\/cdhf.staging.not4prod.com\/?p=7009"},"modified":"2022-11-21T21:16:34","modified_gmt":"2022-11-21T21:16:34","slug":"quest-ce-quune-allergie-alimentaire","status":"publish","type":"post","link":"https:\/\/cdhf.ca\/fr\/quest-ce-quune-allergie-alimentaire\/","title":{"rendered":"Qu\u2019est-ce qu\u2019une allergie alimentaire?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Imaginez devoir consid\u00e9rer comme un poison un aliment qui est en fait parfaitement inoffensif et m\u00eame sain pour la plupart des gens. C\u2019est la r\u00e9alit\u00e9 quotidienne des quelque 2,3 \u00e0 3,1&nbsp;millions de Canadiens qui souffrent au moins d\u2019une allergie alimentaire.&nbsp;&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mais contrairement \u00e0 un poison, un allerg\u00e8ne alimentaire ne cause pas directement de dommages. Au lieu de cela, il retourne votre propre syst\u00e8me de lutte anti-infections contre vous. L\u2019allergie alimentaire diff\u00e8re \u00e9galement de&nbsp;<a href=\"https:\/\/legacynov2022.cdhf.ca\/fr\/health-lifestyle\/quest-ce-quune-intolerance-alimentaire%ef%bf%bc\/\">l\u2019intol\u00e9rance alimentaire<\/a>. Une intol\u00e9rance alimentaire est une r\u00e9action ind\u00e9sirable \u00e0 une substance alimentaire ou \u00e0 un ingr\u00e9dient. Elle affecte le syst\u00e8me digestif, puisqu\u2019il s\u2019agit de l\u2019incapacit\u00e9 \u00e0 dig\u00e9rer ou \u00e0 absorber certains aliments.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si vous souffrez d\u2019une allergie alimentaire, votre organisme interpr\u00e8te \u00e0 tort un composant de cet aliment (g\u00e9n\u00e9ralement une prot\u00e9ine) comme \u00e9tant dangereux, ce qui active le m\u00eame syst\u00e8me de d\u00e9fense qui combat les virus envahissants, tel que celui \u00e0 l\u2019origine de la grippe. La prochaine fois o\u00f9 vous entrez en contact avec cet allerg\u00e8ne, votre corps passe en mode attaque et provoque une r\u00e9action allergique.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les allergies alimentaires se divisent en deux&nbsp;cat\u00e9gories. Celle que la plupart connaissent est ce que l\u2019on appelle une \u00ab&nbsp;allergie alimentaire m\u00e9di\u00e9e par les immunoglobulines&nbsp;E&nbsp;\u00bb (IgE). Votre syst\u00e8me immunitaire produit des prot\u00e9ines appel\u00e9es anticorps qui servent \u00e0 reconna\u00eetre et \u00e0 \u00e9liminer les virus et les bact\u00e9ries. L\u2019IgE est l\u2019un de ces anticorps. Si votre organisme confond un aliment avec un envahisseur nuisible, il produit g\u00e9n\u00e9ralement des anticorps&nbsp;IgE con\u00e7us pour reconna\u00eetre cet aliment sp\u00e9cifique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L<strong>es allergies alimentaires&nbsp;IgE-m\u00e9di\u00e9es<\/strong>&nbsp;sont susceptibles de provoquer une r\u00e9action allergique grave, potentiellement mortelle, appel\u00e9e anaphylaxie. Ces r\u00e9actions allergiques&nbsp;se d\u00e9clenchent g\u00e9n\u00e9ralement dans les minutes qui suivent l\u2019ingestion de l\u2019allerg\u00e8ne alimentaire, bien qu\u2019elles puissent parfois survenir quelques heures plus tard.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans le cas des&nbsp;<strong>allergies alimentaires non induites par les IgE<\/strong>, d\u2019autres parties du syst\u00e8me immunitaire r\u00e9agissent \u00e0 l\u2019allerg\u00e8ne. On estime que les globules blancs, connus sous le nom de \u00ab&nbsp;lymphocytes&nbsp;T&nbsp;\u00bb, sont les principaux acteurs de nombreuses r\u00e9actions allergiques alimentaires IgE-m\u00e9di\u00e9es&nbsp;&nbsp;&nbsp;&nbsp; . Dans cette cat\u00e9gorie d\u2019allergies alimentaires, les r\u00e9actions ne commencent g\u00e9n\u00e9ralement pas avant plusieurs heures, voire plusieurs jours, apr\u00e8s l\u2019ingestion de l\u2019aliment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il est possible pour une personne de souffrir \u00e0 la fois d\u2019allergies alimentaires IgE-m\u00e9di\u00e9es et d\u2019allergies alimentaires non induites par les IgE.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Qui est touch\u00e9 par les allergies alimentaires?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D\u2019apr\u00e8s les r\u00e9sultats d\u2019une enqu\u00eate canadienne men\u00e9e en&nbsp;2016 par des chercheurs de l\u2019Universit\u00e9 de Calgary et de l\u2019Universit\u00e9 de Waterloo, on estime que 6,1&nbsp;% des Canadiens d\u00e9clarent avoir une \u00ab&nbsp;allergie alimentaire probable&nbsp;\u00bb<sup>(1)<\/sup>, ce qui repr\u00e9sente environ 2,3&nbsp;millions de personnes. Selon les auteurs d\u2019un rapport publi\u00e9 en&nbsp;2021 par l\u2019Universit\u00e9 de Dalhousie, il est possible que ce chiffre soit encore plus \u00e9lev\u00e9, soit jusqu\u2019\u00e0 3,1&nbsp;millions de gens. (Il convient toutefois de noter que plus d\u2019un tiers des personnes interrog\u00e9es qui ont d\u00e9clar\u00e9 souffrir d\u2019une allergie alimentaire ont dit l\u2019avoir diagnostiqu\u00e9e elles-m\u00eames<sup>(2)<\/sup>.)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bien que nous ne sachions pas encore ce qui cause les allergies alimentaires, il semble que les allergies soient h\u00e9r\u00e9ditaires. Vous \u00eates plus susceptible de d\u00e9velopper une allergie alimentaire si un membre proche de votre famille en souffre, si vous avez d\u00e9j\u00e0 une allergie alimentaire ou si vous ou un membre de votre famille souffrez d\u2019ecz\u00e9ma, d\u2019asthme ou de rhume des foins.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019allergie alimentaire est plus fr\u00e9quente chez les b\u00e9b\u00e9s et les jeunes enfants que chez les enfants plus \u00e2g\u00e9s et les adultes. Mais on peut toujours d\u00e9velopper une allergie alimentaire \u00e0 l\u2019\u00e2ge adulte.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans certains cas, l\u2019allergie alimentaire chez l\u2019enfant finit par se r\u00e9sorber, avec le temps. Cela est plus probable dans le cas d\u2019une allergie aux \u0153ufs ou au lait.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nous savons maintenant qu\u2019il est possible de pr\u00e9venir l\u2019allergie alimentaire chez de nombreux b\u00e9b\u00e9s qui pr\u00e9sentent un risque \u00e9lev\u00e9 de d\u00e9velopper une allergie en raison de facteurs tels que des ant\u00e9c\u00e9dents familiaux importants. Comment? En commen\u00e7ant \u00e0 introduire les allerg\u00e8nes alimentaires vers l\u2019\u00e2ge de six&nbsp;mois environ<sup>(3)<\/sup>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Quels sont les allerg\u00e8nes alimentaires les plus courants?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selon Sant\u00e9&nbsp;Canada<sup>(4)<\/sup>, les allerg\u00e8nes les plus courants, \u00e9galement appel\u00e9s \u00ab&nbsp;allerg\u00e8nes prioritaires&nbsp;\u00bb dans les aliments, sont les suivants&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0152uf s<\/li>\n\n\n\n<li>Lait<\/li>\n\n\n\n<li>Moutarde<\/li>\n\n\n\n<li>Arachides<\/li>\n\n\n\n<li>Crustac\u00e9s et mollusques (fruits de mer)<\/li>\n\n\n\n<li>Poisson<\/li>\n\n\n\n<li>Graines de s\u00e9same<\/li>\n\n\n\n<li>Soya<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/cdhf.ca\/wp-content\/uploads\/2022\/11\/Screen-Shot-2022-11-21-at-2.35.56-PM.png-789x1024.webp\" alt=\"\" class=\"wp-image-7010 lazyload\"\/><noscript><img decoding=\"async\" width=\"789\" height=\"1024\" src=\"https:\/\/cdhf.ca\/wp-content\/uploads\/2022\/11\/Screen-Shot-2022-11-21-at-2.35.56-PM.png-789x1024.webp\" alt=\"\" class=\"wp-image-7010 lazyload\"\/><\/noscript><\/figure>\n<\/div>\n\n<div style=\"gap: 20px\" class=\"align-button-center ub-buttons orientation-button-row ub-flex-wrap wp-block-ub-button\" id=\"ub-button-d555a287-116b-45a6-9c0f-6d613c31a068\"><div class=\"ub-button-container\">\n\t\t\t<a href=\"https:\/\/cdhf.ca\/wp-content\/uploads\/2022\/11\/Food-Allergy-v3-FR.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"ub-button-block-main   ub-button-flex\" role=\"button\" style=\"--ub-button-background-color: #000000; --ub-button-color: #ffffff; --ub-button-border: none; --ub-button-hover-background-color: #313131; --ub-button-hover-color: #ffffff; --ub-button-hover-border: none; padding-top: 10px; padding-right: 10px; padding-bottom: 10px; padding-left: 10px; border-radius: 10px; \">\n\t\t\t\t<div class=\"ub-button-content-holder\" style=\"flex-direction: row\">\n\t\t\t\t\t<span class=\"ub-button-block-btn\"><em>T\u00e9l\u00e9charge<\/em>r l&#8217;infographie<\/span>\n\t\t\t\t<\/div>\n\t\t\t<\/a>\n\t\t<\/div><\/div>\n\n<div class=\"gradient-divider\"><\/div><div class=\"sponsor-block\"><p><p><strong>Cet article a \u00e9t\u00e9 rendu possible gr\u00e2ce \u00e0 une subvention \u00e9ducative sans restriction de&nbsp;<\/strong><a href=\"https:\/\/sperri.ca\/\"><strong>Sperri \u2013 le premier substitut de repas \u00e0 base de plantes au Canada.<\/strong><\/a><strong> <\/strong><a href=\"https:\/\/sperri.ca\/pages\/for-clinicians\"><strong>Si vous \u00eates clinicien, apprenez-en plus sur Sperri ici.<\/strong><\/a><\/p><\/p><div class=\"sponsor-details\"><div class=\"photo\" >\n<a target=\"_blank\" href=\"https:\/\/www.sperri.ca\/fr\"><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/cdhf.ca\/wp-content\/uploads\/2022\/07\/Sperri-logo.webp\"  \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/cdhf.ca\/wp-content\/uploads\/2022\/07\/Sperri-logo.webp\"  \/><\/noscript><\/a>\n<\/div>\n        <\/div><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>R\u00e9f\u00e9rences<\/strong>\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sant\u00e9&nbsp;Canada (2020).&nbsp;<em>Recherche relative \u00e0 la pr\u00e9valence des allergies et des intol\u00e9rances alimentaires<\/em>. Consulter \u00e0&nbsp;:&nbsp;<a href=\"https:\/\/www.canada.ca\/fr\/sante-canada\/services\/aliments-nutrition\/salubrite-aliments\/allergies-alimentaires-intolerances-alimentaires\/programme-recherche-allergenes-alimentaires\/recherche-relative-prevalence-allergies-intolerances-alimentaires.html\">https:\/\/www.canada.ca\/fr\/sante-canada\/services\/aliments-nutrition\/salubrite-aliments\/allergies-alimentaires-intolerances-alimentaires\/programme-recherche-allergenes-alimentaires\/recherche-relative-prevalence-allergies-intolerances-alimentaires.html<\/a>.<\/li>\n\n\n\n<li>Universit\u00e9 Dalhousie (2021).&nbsp;<em>Dalhousie Report Food Allergies<\/em>. Consulter \u00e0&nbsp;:&nbsp;<a href=\"https:\/\/cdn.dal.ca\/content\/dam\/dalhousie\/pdf\/sites\/agri-food\/Dal%20Report%20Allergies%20FR%20(Oct%2020%202021).pdf\">https:\/\/cdn.dal.ca\/content\/dam\/dalhousie\/pdf\/sites\/agri-food\/Dal%20Report%20Allergies%20FR%20(Oct%2020%202021).pdf<\/a>.<\/li>\n\n\n\n<li>Soci\u00e9t\u00e9 canadienne de p\u00e9diatrie (2021).&nbsp;<em>L\u2019exposition aux aliments et la pr\u00e9vention des allergies chez les nourrissons \u00e0 haut risque<\/em>. Consulter \u00e0&nbsp;:&nbsp;<a href=\"https:\/\/cps.ca\/fr\/documents\/position\/lexposition-aux-aliments-et-la-prevention-des-allergies\">https:\/\/cps.ca\/fr\/documents\/position\/lexposition-aux-aliments-et-la-prevention-des-allergies<\/a>.<\/li>\n\n\n\n<li>Sant\u00e9&nbsp;Canada (2018).&nbsp;<em>Allerg\u00e8nes alimentaires les plus courants<\/em>. Consulter \u00e0&nbsp;:&nbsp;<a href=\"https:\/\/www.canada.ca\/fr\/sante-canada\/services\/aliments-nutrition\/salubrite-aliments\/allergies-alimentaires-intolerances-alimentaires\/allergies-alimentaires.html\">https:\/\/www.canada.ca\/fr\/sante-canada\/services\/aliments-nutrition\/salubrite-aliments\/allergies-alimentaires-intolerances-alimentaires\/allergies-alimentaires.html<\/a>.<\/li>\n\n\n\n<li>Allergies Qu\u00e9bec (2020).&nbsp;<em>9&nbsp;allerg\u00e8nes prioritaires<\/em>. Consulter \u00e0&nbsp;:&nbsp;<a href=\"https:\/\/allergies-alimentaires.org\/9-allergenes-prioritaires\/\">https:\/\/allergies-alimentaires.org\/9-allergenes-prioritaires\/<\/a>.<\/li>\n\n\n\n<li>Allergies Alimentaires Canada (2022).&nbsp;<em>Signes et sympt\u00f4mes d\u2019une r\u00e9action allergique<\/em>. Consulter \u00e0&nbsp;:&nbsp;<a href=\"https:\/\/allergiesalimentairescanada.ca\/les-allergies-alimentaires\/prevenir-et-traiter-les-reactions-allergiques\/signes-et-symptomes-dune-reaction-allergique\/\">https:\/\/allergiesalimentairescanada.ca\/les-allergies-alimentaires\/prevenir-et-traiter-les-reactions-allergiques\/signes-et-symptomes-dune-reaction-allergique\/<\/a>.<\/li>\n\n\n\n<li>Allergies Alimentaires Canada (2016).&nbsp;<em>Food Allergy\u2014What\u2019s It All About?<\/em>&nbsp;Consulter \u00e0 (en anglais seulement)&nbsp;:&nbsp;<a href=\"https:\/\/foodallergycanada.ca\/food-allergy-testing-whats-it-all-about\/\">https:\/\/foodallergycanada.ca\/food-allergy-testing-whats-it-all-about\/<\/a>.<\/li>\n\n\n\n<li>Allergies Alimentaires Canada (2017).&nbsp;<em>Allergy Treatment Spotlight: Oral Immunotherapy (OIT)<\/em>. Consulter \u00e0 (en anglais seulement)&nbsp;:&nbsp;<a href=\"https:\/\/foodallergycanada.ca\/allergy-treatment-spotlight-oral-immunotherapy-oit\/?gclid=CjwKCAjw9-KTBhBcEiwAr19ig0JJu18q1mOu383gedFdo_NsV1ZWVjaeuZIR27r0agqZxSZfhKFQDhoCSXcQAvD_BwE\">https:\/\/foodallergycanada.ca\/allergy-treatment-spotlight-oral-immunotherapy-oit\/?gclid=CjwKCAjw9-KTBhBcEiwAr19ig0JJu18q1mOu383gedFdo_NsV1ZWVjaeuZIR27r0agqZxSZfhKFQDhoCSXcQAvD_BwE<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Imaginez devoir consid\u00e9rer comme un poison un aliment qui est en fait parfaitement inoffensif et m\u00eame sain pour la plupart des gens. C\u2019est la r\u00e9alit\u00e9 quotidienne des quelque 2,3 \u00e0 3,1&nbsp;millions de Canadiens qui souffrent au moins d\u2019une allergie alimentaire.&nbsp;&nbsp; Mais contrairement \u00e0 un poison, un allerg\u00e8ne alimentaire ne cause pas directement de dommages. Au [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":6681,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"cdhf2022_sponsors_meta":[],"footnotes":""},"categories":[111,109],"tags":[106],"class_list":["post-7009","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article-fr","category-infographie","tag-regime-alimentaire-et-nutrition"],"acf":{"article_writer":[3779]},"featured_image_src":"https:\/\/cdhf.ca\/wp-content\/uploads\/2022\/07\/common-food-allergies.webp","author_info":{"display_name":"Sophie Allan","author_link":"https:\/\/cdhf.ca\/fr\/author\/sophie-allen\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Qu\u2019est-ce qu\u2019une allergie alimentaire? - Canadian Digestive Health Foundation<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cdhf.ca\/fr\/quest-ce-quune-allergie-alimentaire\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qu\u2019est-ce qu\u2019une allergie alimentaire? - Canadian Digestive Health Foundation\" \/>\n<meta property=\"og:description\" content=\"Imaginez devoir consid\u00e9rer comme un poison un aliment qui est en fait parfaitement inoffensif et m\u00eame sain pour la plupart des gens. C\u2019est la r\u00e9alit\u00e9 quotidienne des quelque 2,3 \u00e0 3,1&nbsp;millions de Canadiens qui souffrent au moins d\u2019une allergie alimentaire.&nbsp;&nbsp; Mais contrairement \u00e0 un poison, un allerg\u00e8ne alimentaire ne cause pas directement de dommages. 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