{"id":46989,"date":"2025-12-14T14:37:08","date_gmt":"2025-12-14T06:37:08","guid":{"rendered":"https:\/\/www.sgnutri.com\/?p=46989"},"modified":"2026-03-03T09:27:00","modified_gmt":"2026-03-03T01:27:00","slug":"kann-ein-mangel-an-vitamin-b12-zu-einer-gewichtszunahme-fuhren","status":"publish","type":"post","link":"https:\/\/www.sgnutri.com\/de\/kann-ein-mangel-an-vitamin-b12-zu-einer-gewichtszunahme-fuhren\/","title":{"rendered":"Kann ein Mangel an Vitamin B12 zu einer Gewichtszunahme f\u00fchren?"},"content":{"rendered":"<div class=\"wp-block-themepark-block-themepark-wright content-super-p  blog-jiange\" style=\"font-size:17px;line-height:28px;color:#2e2424;padding:10px 20px;\">\n<div class=\"wp-block-column\">\n<p>Derzeit gibt es keine stichhaltigen klinischen Beweise daf\u00fcr, dass ein Vitamin-B12-Mangel direkt zu einer Gewichtszunahme f\u00fchrt. Die Forschung weist jedoch auf einen komplexen Zusammenhang hin: Beobachtungsstudien zeigen, dass Menschen mit Fettleibigkeit h\u00e4ufig einen deutlich niedrigeren B12-Spiegel aufweisen - in einigen F\u00e4llen bis zu 40% niedriger.<\/p>\n\n\n\n<p>Ein Mangel f\u00fchrt zwar nicht direkt zu einer Gewichtszunahme, kann aber zu Stoffwechselproblemen wie Insulinresistenz und gest\u00f6rter Fetts\u00e4ureoxidation f\u00fchren, die eine Gewichtsabnahme erheblich erschweren k\u00f6nnen. Umgekehrt kann ein schwerer B12-Mangel bei manchen Menschen sogar zu Appetitlosigkeit und damit zu einer unbeabsichtigten Gewichtsabnahme f\u00fchren. Obwohl B12 also f\u00fcr einen gesunden Stoffwechsel unerl\u00e4sslich ist, spielt es beim Gewichtsmanagement eher eine indirekte als eine urs\u00e4chliche Rolle.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Vitamin_B12_And_BMI\"><\/span>Vitamin B12 und BMI<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Auch wenn die Wissenschaft noch keinen kausalen Zusammenhang zwischen einem niedrigen B12-Spiegel und Fettleibigkeit feststellen konnte, d\u00fcrfen diese Statistiken nicht ignoriert werden. Die verf\u00fcgbaren Beobachtungsdaten zeigen eindeutig eine negative Korrelation zwischen dem B12-Spiegel und dem K\u00f6rperfettanteil.<\/p>\n\n\n\n<p>In der klinischen Praxis hat sich immer wieder gezeigt, dass Personen, die als \u00fcbergewichtig oder fettleibig eingestuft werden, eher niedrige B12-Konzentrationen im Serum aufweisen. Studien haben sogar gezeigt, dass der B12-Spiegel mit steigendem BMI abnimmt. Bei einigen fettleibigen Gruppen ist der B12-Gehalt um fast 40% niedriger als bei schlanken Menschen. Dies deutet darauf hin, dass ein niedriger B12-Gehalt zwar nicht die Ursache f\u00fcr die Gewichtszunahme ist, aber auf jeden Fall ein \"hochfrequenter metabolischer Partner\" im Prozess der Fettleibigkeit.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"503\" src=\"https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/image-97-1024x503.png\" alt=\"Foto von Vitamin B12\" class=\"wp-image-47171\" srcset=\"https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/image-97-1024x503.png 1024w, https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/image-97-300x147.png 300w, https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/image-97-768x378.png 768w, https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/image-97-18x9.png 18w, https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/image-97.png 1131w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_B12_Deficiency_Makes_Weight_Reduction_Difficult\"><\/span>Warum ein B12-Mangel die Gewichtsreduktion erschwert<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Um zu verstehen, wie sich ein B12-Mangel auf das Gewichtsmanagement auswirkt, m\u00fcssen wir uns ansehen, was es im Zellstoffwechsel bewirkt. Als wichtiger Kofaktor f\u00fcr eine Vielzahl von enzymatischen Reaktionen steuert B12 die Art und Weise, wie unser K\u00f6rper Energie verarbeitet.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Die Oxidation von Fetts\u00e4uren wird blockiert<\/strong>Vitamin B12 ist f\u00fcr den Fett- und Eiwei\u00dfstoffwechsel unerl\u00e4sslich. Insbesondere ist es f\u00fcr die Bildung von Succinyl-CoA erforderlich, das eine Schl\u00fcsselstelle im 3-Carbons\u00e4ure-Zyklus (dem Energieerzeugungsofen unseres K\u00f6rpers) ist. Bei einem Mangel an B12 ist die F\u00e4higkeit des K\u00f6rpers zur \"Fetts\u00e4ureoxidation\" - dem Prozess, bei dem Fette abgebaut und in Energie umgewandelt werden - beeintr\u00e4chtigt. Wenn der K\u00f6rper Fett nicht effizient als Brennstoff verbrennen kann, wird die Gewichtsabnahme zu einem \u00e4u\u00dferst schwierigen Tauziehen.<\/li>\n\n\n\n<li><strong>Insulinresistenz und metabolische Gesundheit<\/strong>Neue Forschungsergebnisse haben einen Zusammenhang zwischen einem niedrigen B12-Spiegel und einer erh\u00f6hten Insulinresistenz hergestellt. Insulin ist das zentrale Hormon, das den Blutzucker und die Fettspeicherung reguliert. Sobald der K\u00f6rper resistent gegen Insulin wird, neigt er dazu, mehr Kalorien als Fett zu speichern, insbesondere im Bauchbereich. Durch die Beeintr\u00e4chtigung der Insulinempfindlichkeit schafft ein B12-Mangel ein metabolisches Umfeld, das zur Fettspeicherung neigt und nur langsam auf herk\u00f6mmliche Di\u00e4ten und Sport reagiert.<\/li>\n<\/ol>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"maxw\" style=\"padding-bottom:100px;padding-top:100px;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in clomnsmal  clomnnone\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<p class=\"has-text-align-center has-themecolor-1-color has-text-color has-link-color has-large-font-size wp-elements-a412b82537ce59baad06b01a96b3c1d2\"><strong>An der Spitze der Ern\u00e4hrung<\/strong><\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined  product-demo1\" id=\"maxw\" style=\"\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in clomnsmal  clomnnone\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\">\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:14px;line-height:25px;color:#333333;padding:20px 20px;\">\n<div class=\"wp-block-column\">\n<p class=\"has-themecolor-1-color has-text-color has-link-color has-medium-font-size wp-elements-abc467a7e19bc0b8f4faebef530f0542\"><strong><strong><strong><strong><strong><strong>L\u00f6sliche Ballaststoffe<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>L\u00f6sliche Ballaststoffe sind hochstabile, unverdauliche Nahrungsbestandteile, die die Gewichtskontrolle f\u00f6rdern, indem sie das S\u00e4ttigungsgef\u00fchl steigern und die Nahrungsaufnahme reduzieren. Sie sind vielseitig einsetzbar und werden h\u00e4ufig verwendet, um das N\u00e4hrwertprofil und die Textur von Lebensmitteln, Getr\u00e4nken und Gesundheitsprodukten zu verbessern.<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-btn themepark-i-btn-out\" style=\"text-align:undefined;\"><div class=\"themepark-i-btn-out_ins\" style=\"\"><div class=\"themepark-i-btn-out_in\"><div class=\"themepark-i-btn\" style=\"background-color:#0aa652;color:#ffffff;font-size:14px;border:solid 1px #318ec8;padding:6px 43px;\"><a href=\"https:\/\/www.sgnutri.com\/de\/kategorie\/alleprodukte\/losliche-ballaststoffe\/\" rel=\"noopener noreferrer \">Angebot einholen<\/a><a class=\"hovers\" data-title=\"Get Quote\" style=\"color:#318ec8;background-color:#ffffff;padding:6px 43px;\" href=\"https:\/\/www.sgnutri.com\/de\/kategorie\/alleprodukte\/losliche-ballaststoffe\/\" rel=\"noopener noreferrer\" target=\"_self\"><\/a><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:5%\"><\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:50%\">\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"padding-top:110px;height:300px;box-sizing: border-box;width: 100%;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<h2 class=\"wp-block-heading has-text-align-center hover-only-title has-themecolor-1-color has-text-color has-link-color wp-elements-b45b7f3fb95a8220ad5d673dd5e4fc25\" style=\"font-size:30px\"><span class=\"ez-toc-section\" id=\"Soluble_Fiber\"><\/span><strong><strong><strong><strong><strong>L\u00f6sliche Ballaststoffe<\/strong><\/strong><\/strong><\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<\/div><div class=\"layout_badh\"><div class=\"PcOnly themepark-block_layout_ba lazyload swiper-lazy\" style=\"background-repeat:no-repeat;background-size:cover;\" data-background=\"https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/\u672a\u6807\u9898-2.png\"><\/div><div class=\"MovePnly themepark-block_layout_ba lazyload swiper-move-lazy\" style=\"background-repeat:no-repeat;background-size:cover;\" data-background=\"https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/\u672a\u6807\u9898-2.png\"><\/div><\/div><\/section>\n<\/div>\n<\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined  product-demo1\" id=\"maxw\" style=\"\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in clomnsmal  clomnnone\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\">\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:14px;line-height:25px;color:#333333;padding:20px 20px;\">\n<div class=\"wp-block-column\">\n<p class=\"has-themecolor-1-color has-text-color has-link-color has-medium-font-size wp-elements-04e1b3374feb268aed97152a1f9aac63\"><strong><strong>Pr\u00e4biotisch<\/strong><\/strong><\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Ein Pr\u00e4biotikum fungiert als Proliferationsfaktor, der selektiv von n\u00fctzlichen Darmbakterien abgebaut und verwertet wird, wie z. B.&nbsp;<em>Bifidobakterien<\/em>. Dieser Prozess wirkt sich positiv auf die allgemeine Gesundheit des Menschen aus und geht h\u00e4ufig mit metabolischen Vorteilen einher, wie z. B. einer geringen Kalorienbelastung und minimalen Blutzuckerschwankungen aufgrund ihrer einzigartigen Verdauungsstabilit\u00e4t.<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-btn themepark-i-btn-out\" style=\"text-align:undefined;\"><div class=\"themepark-i-btn-out_ins\" style=\"\"><div class=\"themepark-i-btn-out_in\"><div class=\"themepark-i-btn\" style=\"background-color:#0aa652;color:#ffffff;font-size:14px;border:solid 1px #318ec8;padding:6px 43px;\"><a href=\"https:\/\/www.sgnutri.com\/de\/kategorie\/alleprodukte\/prabiotisch\/\" rel=\"noopener noreferrer \">Angebot einholen<\/a><a class=\"hovers\" data-title=\"Get Quote\" style=\"color:#318ec8;background-color:#ffffff;padding:6px 43px;\" href=\"https:\/\/www.sgnutri.com\/de\/kategorie\/alleprodukte\/prabiotisch\/\" rel=\"noopener noreferrer\" target=\"_self\"><\/a><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:5%\"><\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:50%\">\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"padding-top:110px;height:300px;box-sizing: border-box;width: 100%;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<h2 class=\"wp-block-heading has-text-align-center hover-only-title has-themecolor-1-color has-text-color has-link-color wp-elements-6dcb043e5f0a710efa5e014da6febeb2\" style=\"font-size:30px\"><span class=\"ez-toc-section\" id=\"Prebiotic\"><\/span><strong><strong>Pr\u00e4biotisch<\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<\/div><div class=\"layout_badh\"><div class=\"PcOnly themepark-block_layout_ba lazyload swiper-lazy\" style=\"background-repeat:no-repeat;background-size:cover;\" data-background=\"https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/\u672a\u6807\u9898-5.png\"><\/div><div class=\"MovePnly themepark-block_layout_ba lazyload swiper-move-lazy\" style=\"background-repeat:no-repeat;background-size:cover;\" data-background=\"https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/\u672a\u6807\u9898-5.png\"><\/div><\/div><\/section>\n<\/div>\n<\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined  product-demo1\" id=\"maxw\" style=\"\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in clomnsmal  clomnnone\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\">\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:14px;line-height:25px;color:#333333;padding:20px 20px;\">\n<div class=\"wp-block-column\">\n<p class=\"has-themecolor-1-color has-text-color has-link-color has-medium-font-size wp-elements-9c16a18866d3d60738f810938ceef076\"><strong>Vitamine<\/strong><\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><br>Vitamine sind essenzielle organische Mikron\u00e4hrstoffe, die in wasserl\u00f6sliche und fettl\u00f6sliche Formen unterteilt werden und wichtige physiologische Prozesse wie Stoffwechsel, Immunit\u00e4t und Blutgerinnung regulieren.  Aufgrund ihrer Empfindlichkeit gegen\u00fcber Licht, W\u00e4rme und Feuchtigkeit, <\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-btn themepark-i-btn-out\" style=\"text-align:undefined;\"><div class=\"themepark-i-btn-out_ins\" style=\"\"><div class=\"themepark-i-btn-out_in\"><div class=\"themepark-i-btn\" style=\"background-color:#0aa652;color:#ffffff;font-size:14px;border:solid 1px #318ec8;padding:6px 43px;\"><a href=\"https:\/\/www.sgnutri.com\/de\/kategorie\/alleprodukte\/viatmins\/\" rel=\"noopener noreferrer \">Angebot einholen<\/a><a class=\"hovers\" data-title=\"Get Quote\" style=\"color:#318ec8;background-color:#ffffff;padding:6px 43px;\" href=\"https:\/\/www.sgnutri.com\/de\/kategorie\/alleprodukte\/viatmins\/\" rel=\"noopener noreferrer\" target=\"_self\"><\/a><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:5%\"><\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:50%\">\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined\" id=\"\" style=\"padding-top:110px;height:300px;box-sizing: border-box;width: 100%;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<h2 class=\"wp-block-heading has-text-align-center hover-only-title has-themecolor-1-color has-text-color has-link-color wp-elements-cb59af2c229b8669dc39731809bb0a5b\" style=\"font-size:30px\"><span class=\"ez-toc-section\" id=\"Vitamins\"><\/span><strong>Vitamine<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<\/div><div class=\"layout_badh\"><div class=\"PcOnly themepark-block_layout_ba lazyload swiper-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/\u672a\u6807\u9898-3.png\"><\/div><div class=\"MovePnly themepark-block_layout_ba lazyload swiper-move-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.sgnutri.com\/wp-content\/uploads\/2025\/12\/\u672a\u6807\u9898-3.png\"><\/div><\/div><\/section>\n<\/div>\n<\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><\/div><\/section>\n\n\n\n<style>\n.product-demo1{\n  border:1px solid #D4D4D4;\n}\n\n\/* \u533a\u5757\u6574\u4f53 hover \u80cc\u666f + \u6587\u5b57\u53d8\u767d *\/\n.product-demo1 {\n    transition: background-color 0.45s ease;\n}\n\n.product-demo1:hover {\n    background-color: var(--wp--preset--color--themecolor-1);\n}\n\n\/* \u5de6\u4fa7\u6240\u6709\u6587\u5b57 hover \u540e\u5f3a\u5236\u767d\u8272 *\/\n.product-demo1:hover .content-super-p,\n.product-demo1:hover .content-super-p p,\n.product-demo1:hover .content-super-p strong,\n.product-demo1:hover .content-super-p .has-medium-font-size {\n    color: #ffffff !important;\n}\n\n\/* \u6309\u94ae\uff1a\u521d\u59cb\u4e3b\u9898\u8272\u5e95+\u767d\u5b57 \u2192 hover \u767d\u5e95+\u4e3b\u9898\u8272\u5b57 *\/\n.product-demo1 .themepark-i-btn {\n    background-color: var(--wp--preset--color--themecolor-1) !important;\n    color: #ffffff !important;\n    border-color: var(--wp--preset--color--themecolor-1) !important;\n    transition: all 0.4s ease;\n}\n\n.product-demo1:hover .themepark-i-btn {\n    background-color: #ffffff !important;\n    color: var(--wp--preset--color--themecolor-1) !important;\n    border-color: var(--wp--preset--color--themecolor-1) !important;\n}\n\n\/* \u2500\u2500\u2500 \u53f3\u4fa7\u56fe\u7247\u533a\u57df\uff1a\u906e\u7f69 + hover-only-title \u2500\u2500\u2500 *\/\n\n.PcOnly.themepark-block_layout_ba {\n    position: relative; 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In einigen F\u00e4llen von schwerem oder lang anhaltendem Mangel k\u00f6nnen die Symptome stattdessen zu unbeabsichtigtem Gewichtsverlust f\u00fchren.<\/p>\n\n\n\n<p>Ein extremer B12-Mangel beeintr\u00e4chtigt das Verdauungssystem und die Nervensignale, die das Hungergef\u00fchl steuern. Es kann zu erheblicher Appetitlosigkeit, \u00dcbelkeit und sogar Glossitis (schmerzhafte R\u00f6tung der Zunge) kommen, was das Essen erschweren kann. In diesem klinischen Szenario f\u00fchrt der B12-Mangel eher zu einer L\u00fccke in der Kalorienaufnahme als zu einer Verlangsamung des Stoffwechsels. Dies beweist nur, dass die Wirkung von B12 auf das K\u00f6rpergewicht sehr individuell ist und weitgehend von der Schwere des N\u00e4hrstoffverlustes abh\u00e4ngt.<\/p>\n\n\n\n<p>Autor: Aiden<\/p>\n\n\n\n<p>\"Als klinische Ern\u00e4hrungsberaterin und Gesundheitsforscherin habe ich mich auf die komplizierten Beziehungen zwischen Mikron\u00e4hrstoffen und Stoffwechselgesundheit spezialisiert. 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