{"id":73134,"date":"2025-07-09T09:50:00","date_gmt":"2025-07-09T12:50:00","guid":{"rendered":"https:\/\/www.em.com.br\/emfoco\/?p=73134"},"modified":"2025-07-09T00:08:37","modified_gmt":"2025-07-09T03:08:37","slug":"dr-lair-ribeiro-cardiologista-voce-come-achando-que-e-saudavel-mas-e-veneno","status":"publish","type":"post","link":"https:\/\/www.em.com.br\/emfoco\/2025\/07\/09\/dr-lair-ribeiro-cardiologista-voce-come-achando-que-e-saudavel-mas-e-veneno\/","title":{"rendered":"Dr. Lair Ribeiro, cardiologista: \u201cVoc\u00ea come achando que \u00e9 saud\u00e1vel, mas \u00e9 veneno\u201d"},"content":{"rendered":"\n<p>A frutose, presente em frutas, mel e alimentos industrializados, \u00e9 chamada de &#8220;veneno&#8221; pelo Dr. Lair Ribeiro (CRM\u202f6972 \/ RQE\u200bMG\u202f29517), cardiologista e nutr\u00f3logo. Segundo ele, ao contr\u00e1rio da glicose, nenhuma c\u00e9lula do corpo aceita frutose, com exce\u00e7\u00e3o do f\u00edgado, que \u00e9 for\u00e7ado a process\u00e1-la sozinho. Esse processo sobrecarrega o \u00f3rg\u00e3o e pode prejudicar a sa\u00fade metab\u00f3lica de forma significativa.<\/p>\n\n\n\n<p>Neste artigo, voc\u00ea vai entender por que o excesso de frutose \u00e9 t\u00e3o problem\u00e1tico e o que fazer para proteger seu organismo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">O que \u00e9 frutose e por que pode fazer mal?<\/h2>\n\n\n\n<p>A frutose \u00e9 um tipo de a\u00e7\u00facar simples, comum em frutas, mel, doces e refrigerantes. Ao ser ingerida, ela segue diretamente para o f\u00edgado, pois nenhuma outra c\u00e9lula do corpo a reconhece como fonte de energia. Essa caracter\u00edstica levou o Dr. Lair Ribeiro a classific\u00e1-la como um &#8220;veneno funcional&#8221;, j\u00e1 que o f\u00edgado precisa trabalhar sozinho para elimin\u00e1-la.<\/p>\n\n\n\n<p>Diferente da glicose, que pode ser usada por todo o organismo, a frutose \u00e9 metabolizada exclusivamente pelo f\u00edgado, que a transforma em gordura ou em energia. O consumo frequente favorece o ac\u00famulo de gordura hep\u00e1tica e altera\u00e7\u00f5es hormonais.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quais os riscos do excesso de frutose para o f\u00edgado?<\/h2>\n\n\n\n<p>Quando consumida em excesso, a frutose exige um trabalho extra do f\u00edgado, que passa a converter esse a\u00e7\u00facar em triglicer\u00eddeos. Isso pode provocar esteatose hep\u00e1tica, inflama\u00e7\u00e3o cr\u00f4nica e altera\u00e7\u00f5es no metabolismo. Com o tempo, o f\u00edgado perde efici\u00eancia, aumentando o risco de doen\u00e7as metab\u00f3licas.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2025\/07\/figado_1752029826035-1024x576.jpg\" alt=\"\" class=\"wp-image-73155\" srcset=\"https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2025\/07\/figado_1752029826035-1024x576.jpg 1024w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2025\/07\/figado_1752029826035-300x169.jpg 300w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2025\/07\/figado_1752029826035-768x432.jpg 768w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2025\/07\/figado_1752029826035-750x422.jpg 750w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2025\/07\/figado_1752029826035-1140x641.jpg 1140w, https:\/\/www.em.com.br\/emfoco\/wp-content\/uploads\/2025\/07\/figado_1752029826035.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Representa\u00e7\u00e3o de m\u00e9dicos analisando f\u00edgado &#8211; Cr\u00e9ditos: depositphotos.com \/ chanwity.nu.ac.th<\/figcaption><\/figure><\/div>\n\n\n<p>Esse impacto pode ocorrer mesmo em pessoas que n\u00e3o consomem \u00e1lcool. O excesso de frutose tem sido associado a s\u00edndromes metab\u00f3licas, obesidade e resist\u00eancia \u00e0 insulina.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A frutose pode ser pior que o \u00e1lcool?<\/h2>\n\n\n\n<p>O Dr. Lair Ribeiro compara a frutose ao \u00e1lcool. Enquanto o \u00e1lcool atravessa a barreira hematoencef\u00e1lica e age diretamente no c\u00e9rebro, a frutose \u00e9 bloqueada, indo toda para o f\u00edgado. Por isso, ele defende que, em termos metab\u00f3licos, a frutose pode ser ainda mais prejudicial a longo prazo.<\/p>\n\n\n\n<blockquote class=\"instagram-media\" data-instgrm-captioned data-instgrm-permalink=\"https:\/\/www.instagram.com\/reel\/DL0juajSmjm\/?utm_source=ig_embed&amp;utm_campaign=loading\" data-instgrm-version=\"14\" style=\" background:#FFF; border:0; border-radius:3px; box-shadow:0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width:540px; min-width:326px; padding:0; width:99.375%; width:-webkit-calc(100% - 2px); width:calc(100% - 2px);\"><div style=\"padding:16px;\"> <a href=\"https:\/\/www.instagram.com\/reel\/DL0juajSmjm\/?utm_source=ig_embed&amp;utm_campaign=loading\" style=\" background:#FFFFFF; line-height:0; padding:0 0; text-align:center; text-decoration:none; width:100%;\" target=\"_blank\"> <div style=\" display: flex; flex-direction: row; align-items: center;\"> <div style=\"background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;\"><\/div> <div style=\"display: flex; flex-direction: column; flex-grow: 1; justify-content: center;\"> <div style=\" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;\"><\/div> <div style=\" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;\"><\/div><\/div><\/div><div style=\"padding: 19% 0;\"><\/div> <div style=\"display:block; height:50px; margin:0 auto 12px; width:50px;\"><svg width=\"50px\" height=\"50px\" viewBox=\"0 0 60 60\" version=\"1.1\" xmlns=\"https:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"https:\/\/www.w3.org\/1999\/xlink\"><g stroke=\"none\" stroke-width=\"1\" fill=\"none\" fill-rule=\"evenodd\"><g transform=\"translate(-511.000000, -20.000000)\" fill=\"#000000\"><g><path d=\"M556.869,30.41 C554.814,30.41 553.148,32.076 553.148,34.131 C553.148,36.186 554.814,37.852 556.869,37.852 C558.924,37.852 560.59,36.186 560.59,34.131 C560.59,32.076 558.924,30.41 556.869,30.41 M541,60.657 C535.114,60.657 530.342,55.887 530.342,50 C530.342,44.114 535.114,39.342 541,39.342 C546.887,39.342 551.658,44.114 551.658,50 C551.658,55.887 546.887,60.657 541,60.657 M541,33.886 C532.1,33.886 524.886,41.1 524.886,50 C524.886,58.899 532.1,66.113 541,66.113 C549.9,66.113 557.115,58.899 557.115,50 C557.115,41.1 549.9,33.886 541,33.886 M565.378,62.101 C565.244,65.022 564.756,66.606 564.346,67.663 C563.803,69.06 563.154,70.057 562.106,71.106 C561.058,72.155 560.06,72.803 558.662,73.347 C557.607,73.757 556.021,74.244 553.102,74.378 C549.944,74.521 548.997,74.552 541,74.552 C533.003,74.552 532.056,74.521 528.898,74.378 C525.979,74.244 524.393,73.757 523.338,73.347 C521.94,72.803 520.942,72.155 519.894,71.106 C518.846,70.057 518.197,69.06 517.654,67.663 C517.244,66.606 516.755,65.022 516.623,62.101 C516.479,58.943 516.448,57.996 516.448,50 C516.448,42.003 516.479,41.056 516.623,37.899 C516.755,34.978 517.244,33.391 517.654,32.338 C518.197,30.938 518.846,29.942 519.894,28.894 C520.942,27.846 521.94,27.196 523.338,26.654 C524.393,26.244 525.979,25.756 528.898,25.623 C532.057,25.479 533.004,25.448 541,25.448 C548.997,25.448 549.943,25.479 553.102,25.623 C556.021,25.756 557.607,26.244 558.662,26.654 C560.06,27.196 561.058,27.846 562.106,28.894 C563.154,29.942 563.803,30.938 564.346,32.338 C564.756,33.391 565.244,34.978 565.378,37.899 C565.522,41.056 565.552,42.003 565.552,50 C565.552,57.996 565.522,58.943 565.378,62.101 M570.82,37.631 C570.674,34.438 570.167,32.258 569.425,30.349 C568.659,28.377 567.633,26.702 565.965,25.035 C564.297,23.368 562.623,22.342 560.652,21.575 C558.743,20.834 556.562,20.326 553.369,20.18 C550.169,20.033 549.148,20 541,20 C532.853,20 531.831,20.033 528.631,20.18 C525.438,20.326 523.257,20.834 521.349,21.575 C519.376,22.342 517.703,23.368 516.035,25.035 C514.368,26.702 513.342,28.377 512.574,30.349 C511.834,32.258 511.326,34.438 511.181,37.631 C511.035,40.831 511,41.851 511,50 C511,58.147 511.035,59.17 511.181,62.369 C511.326,65.562 511.834,67.743 512.574,69.651 C513.342,71.625 514.368,73.296 516.035,74.965 C517.703,76.634 519.376,77.658 521.349,78.425 C523.257,79.167 525.438,79.673 528.631,79.82 C531.831,79.965 532.853,80.001 541,80.001 C549.148,80.001 550.169,79.965 553.369,79.82 C556.562,79.673 558.743,79.167 560.652,78.425 C562.623,77.658 564.297,76.634 565.965,74.965 C567.633,73.296 568.659,71.625 569.425,69.651 C570.167,67.743 570.674,65.562 570.82,62.369 C570.966,59.17 571,58.147 571,50 C571,41.851 570.966,40.831 570.82,37.631\"><\/path><\/g><\/g><\/g><\/svg><\/div><div style=\"padding-top: 8px;\"> <div style=\" color:#3897f0; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:550; line-height:18px;\">Ver essa foto no Instagram<\/div><\/div><div style=\"padding: 12.5% 0;\"><\/div> <div style=\"display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;\"><div> <div style=\"background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);\"><\/div> <div style=\"background-color: #F4F4F4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;\"><\/div> <div style=\"background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);\"><\/div><\/div><div style=\"margin-left: 8px;\"> <div style=\" background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;\"><\/div> <div style=\" width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg)\"><\/div><\/div><div style=\"margin-left: auto;\"> <div style=\" width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);\"><\/div> <div style=\" background-color: #F4F4F4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);\"><\/div> <div style=\" width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);\"><\/div><\/div><\/div> <div style=\"display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;\"> <div style=\" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;\"><\/div> <div style=\" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;\"><\/div><\/div><\/a><p style=\" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; line-height:17px; margin-bottom:0; margin-top:8px; overflow:hidden; padding:8px 0 7px; text-align:center; text-overflow:ellipsis; white-space:nowrap;\"><a href=\"https:\/\/www.instagram.com\/reel\/DL0juajSmjm\/?utm_source=ig_embed&amp;utm_campaign=loading\" style=\" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:normal; line-height:17px; text-decoration:none;\" target=\"_blank\">Uma publica\u00e7\u00e3o compartilhada por Dr. Lair Ribeiro (@drlairribeiro)<\/a><\/p><\/div><\/blockquote>\n<script async src=\"\/\/www.instagram.com\/embed.js\"><\/script>\n\n\n\n<p>Essa exposi\u00e7\u00e3o constante sobrecarrega o f\u00edgado diariamente. A diferen\u00e7a est\u00e1 na frequ\u00eancia: \u00e9 mais comum consumir frutose em grandes quantidades do que ingerir bebidas alco\u00f3licas diariamente.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quais os sinais de consumo excessivo?<\/h2>\n\n\n\n<p>O consumo exagerado de frutose nem sempre d\u00e1 sinais imediatos. Por\u00e9m, alguns sintomas podem surgir com o tempo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fadiga frequente<\/li>\n\n\n\n<li>Ganho de peso abdominal<\/li>\n\n\n\n<li>Exames com triglicer\u00eddeos elevados<\/li>\n\n\n\n<li>F\u00edgado gorduroso (esteatose)<\/li>\n<\/ul>\n\n\n\n<p>Esses sinais indicam que o f\u00edgado pode estar sofrendo os efeitos de uma sobrecarga de a\u00e7\u00facar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Como reduzir a frutose na alimenta\u00e7\u00e3o?<\/h2>\n\n\n\n<p>Para proteger a sa\u00fade hep\u00e1tica, \u00e9 importante adotar medidas simples:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Reduzir sucos industrializados, refrigerantes e alimentos processados<\/li>\n\n\n\n<li>Modere o consumo de frutas ricas em frutose, como uva, manga e melancia<\/li>\n\n\n\n<li>Prefira frutas com baixo teor de a\u00e7\u00facar, como morango, lim\u00e3o e kiwi<\/li>\n\n\n\n<li>Evite xarope de milho, mel e ado\u00e7antes artificiais com alto \u00edndice glic\u00eamico<\/li>\n<\/ol>\n\n\n\n<p>Fazer escolhas mais conscientes ajuda o f\u00edgado a trabalhar com mais efici\u00eancia.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Fontes confi\u00e1veis utilizadas neste artigo<\/h2>\n\n\n\n<p>Este conte\u00fado foi elaborado com base em fontes s\u00e9rias e reconhecidas pela comunidade cient\u00edfica:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Minist\u00e9rio da Sa\u00fade: <a href=\"http:\/\/www.gov.br\/saude\" target=\"_blank\" rel=\"noreferrer noopener\"><a>www.gov.br\/saude<\/a><\/a><\/li>\n\n\n\n<li>Organiza\u00e7\u00e3o Mundial da Sa\u00fade (OMS): <a href=\"https:\/\/www.who.int\" target=\"_blank\" rel=\"noreferrer noopener\">www.who.int<\/a><\/li>\n\n\n\n<li>PubMed (base de dados cient\u00edfica): <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\" target=\"_blank\" rel=\"noreferrer noopener\">www.ncbi.nlm.nih.gov\/pubmed<\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A frutose, presente em frutas, mel e alimentos industrializados, \u00e9 chamada de &#8220;veneno&#8221; pelo Dr. Lair Ribeiro (CRM\u202f6972 \/ RQE\u200bMG\u202f29517), cardiologista e nutr\u00f3logo. Segundo ele, ao contr\u00e1rio da glicose, nenhuma c\u00e9lula do corpo aceita frutose, com exce\u00e7\u00e3o do f\u00edgado, que \u00e9 for\u00e7ado a process\u00e1-la sozinho. Esse processo sobrecarrega o \u00f3rg\u00e3o e pode prejudicar a sa\u00fade [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":73154,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jnews-multi-image_gallery":[],"jnews_single_post":{"format":"standard"},"jnews_primary_category":[],"jnews_social_meta":[],"jnews_override_counter":[],"footnotes":""},"categories":[9053],"tags":[3081,415,8974],"class_list":["post-73134","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saude","tag-alimentos","tag-saude","tag-sintomas"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Dr. Lair Ribeiro, cardiologista: \u201cVoc\u00ea come achando que \u00e9 saud\u00e1vel, mas \u00e9 veneno\u201d - Estado de Minas - Em foco<\/title>\n<meta name=\"description\" content=\"Frutose \u00e9 metabolizada s\u00f3 pelo f\u00edgado e pode gerar gordura hep\u00e1tica. 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