{"id":18903,"date":"2018-08-12T11:02:39","date_gmt":"2018-08-12T14:02:39","guid":{"rendered":"https:\/\/www.tiabeth.com.br\/?p=18903"},"modified":"2018-08-12T11:07:33","modified_gmt":"2018-08-12T14:07:33","slug":"cafe-o-que-diz-a-ciencia-conheca-os-beneficios-e-riscos-para-a-saude","status":"publish","type":"post","link":"https:\/\/www.tiabeth.com.br\/index.php\/2018\/08\/12\/cafe-o-que-diz-a-ciencia-conheca-os-beneficios-e-riscos-para-a-saude\/","title":{"rendered":"Caf\u00e9, o que diz a ci\u00eancia? Conhe\u00e7a os  benef\u00edcios e riscos para a sa\u00fade"},"content":{"rendered":"<figure id=\"attachment_18904\" aria-describedby=\"caption-attachment-18904\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.tiabeth.com.br\/wp-content\/uploads\/2018\/08\/cafe2.jpg\"><img loading=\"lazy\" class=\"size-full wp-image-18904\" src=\"https:\/\/www.tiabeth.com.br\/wp-content\/uploads\/2018\/08\/cafe2.jpg\" alt=\"\" width=\"1000\" height=\"667\" srcset=\"https:\/\/www.tiabeth.com.br\/wp-content\/uploads\/2018\/08\/cafe2.jpg 1000w, https:\/\/www.tiabeth.com.br\/wp-content\/uploads\/2018\/08\/cafe2-300x200.jpg 300w, https:\/\/www.tiabeth.com.br\/wp-content\/uploads\/2018\/08\/cafe2-768x512.jpg 768w, https:\/\/www.tiabeth.com.br\/wp-content\/uploads\/2018\/08\/cafe2-177x118.jpg 177w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/a><figcaption id=\"caption-attachment-18904\" class=\"wp-caption-text\">Photo by DREW GILLIAM on Unsplash<\/figcaption><\/figure>\n<p><strong>O caf\u00e9<\/strong>, depois da \u00e1gua, \u00e9 a\u00a0<strong>bebida mais popular do mundo.<\/strong>\u00a0As propriedades promotoras para a sa\u00fade s\u00e3o frequentemente atribu\u00eddas \u00e0 sua rica composi\u00e7\u00e3o em fitoqu\u00edmicos. Incluindo\u00a0<strong>cafe\u00edna, \u00e1cido clorog\u00eanico, \u00e1cido cafeico, hidroxi-hidroquinona<\/strong>, etc.<\/p>\n<p><strong>Contudo, as controv\u00e9rsias em rela\u00e7\u00e3o aos seus benef\u00edcios e riscos ainda existem!\u00a0<\/strong>Existem evid\u00eancias confi\u00e1veis a apoiar o seu potencial de promo\u00e7\u00e3o da sa\u00fade.<\/p>\n<p>Dito isto, alguns investigadores discutem a associa\u00e7\u00e3o do consumo de caf\u00e9 com\u00a0<strong>complica\u00e7\u00f5es cardiovasculares<\/strong>\u00a0e at\u00e9 o aparecimento de\u00a0<strong>c\u00e2ncer<\/strong>.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-85243\" src=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/laptop-1478822_960_720-350x233.jpg\" sizes=\"(max-width: 490px) 100vw, 490px\" srcset=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/laptop-1478822_960_720-350x233.jpg 350w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/laptop-1478822_960_720-95x63.jpg 95w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/laptop-1478822_960_720-768x512.jpg 768w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/laptop-1478822_960_720-730x487.jpg 730w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/laptop-1478822_960_720.jpg 960w\" alt=\"caf\u00e9, diabetes, cardiovascular, cancro, neurodegenerativas, benef\u00edcios, riscos\" width=\"800\" height=\"534\" \/><\/p>\n<p><strong>Muitas investiga\u00e7\u00f5es cient\u00edficas sobre o consumo de caf\u00e9 revelam que este \u00e9 ben\u00e9fico tanto para a diabetes, Parkinson,\u00a0 Alzheimer assim como para alguns tipos de c\u00e2ncer.<\/strong><\/p>\n<p>Em paralelo, estudos afirmam que a cafe\u00edna melhora o stress devido \u00e0 sua capacidade de induzir express\u00e3o de mRNA. A fra\u00e7\u00e3o lip\u00eddica do caf\u00e9 contendo cafestol e kahweol atua como uma salvaguarda contra algumas c\u00e9lulas malignas, modulando as enzimas \u201cdesintoxicantes\u201d.<\/p>\n<p>Contudo,\u00a0<strong>doses elevadas da bebida tendem a aumentar os riscos para a sa\u00fade<\/strong>. Isto porque, para al\u00e9m de aumentar o colesterol s\u00e9rico, representa uma poss\u00edvel amea\u00e7a \u00e0 sa\u00fade cardiovascular e enfarte agudo do mioc\u00e1rdio. Isto j\u00e1 para n\u00e3o falar das ins\u00f4nias.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-85238\" src=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/analysis-2030266_960_720-350x233.jpg\" sizes=\"(max-width: 442px) 100vw, 442px\" srcset=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/analysis-2030266_960_720-350x233.jpg 350w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/analysis-2030266_960_720-95x63.jpg 95w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/analysis-2030266_960_720-768x512.jpg 768w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/analysis-2030266_960_720-730x487.jpg 730w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/analysis-2030266_960_720.jpg 960w\" alt=\"caf\u00e9, diabetes, cardiovascular, cancro, neurodegenerativas, benef\u00edcios, riscos\" width=\"800\" height=\"534\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2>Diabetes<\/h2>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-85053 \" src=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/diabetes-1724617__340-350x233.jpg\" sizes=\"(max-width: 350px) 100vw, 350px\" srcset=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/diabetes-1724617__340-350x233.jpg 350w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/diabetes-1724617__340-95x63.jpg 95w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/diabetes-1724617__340.jpg 510w\" alt=\"caf\u00e9, diabetes, cardiovascular, cancro, neurodegenerativas, benef\u00edcios, riscos\" width=\"611\" height=\"407\" \/><\/p>\n<p>Existe de fato uma correla\u00e7\u00e3o entre a popular \u201cbebida amarga\u201d e os efeitos positivos sobre a s\u00edndrome metab\u00f3lica.<\/p>\n<h4>Os estudos mostram que as pessoas que bebem mais caf\u00e9 t\u00eam uma diminui\u00e7\u00e3o do risco em pelo menos 23-50% de sofrer da diabetes.<\/h4>\n<p>Este efeito deve-se em parte ao perfil nutricional e fonte de antioxidantes. Ocorrendo, um aumento da sensibilidade \u00e0 insulina! Contudo, h\u00e1 evid\u00eancias de que a cafe\u00edna n\u00e3o \u00e9 o principal respons\u00e1vel pelo potencial hipoglic\u00e9mico!<\/p>\n<h2>Doen\u00e7as neurodegenerativas<\/h2>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-85390 \" src=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/brain-1845962_960_720-350x265.jpg\" sizes=\"(max-width: 350px) 100vw, 350px\" srcset=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/brain-1845962_960_720-350x265.jpg 350w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/brain-1845962_960_720-95x72.jpg 95w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/brain-1845962_960_720-768x581.jpg 768w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/brain-1845962_960_720-730x552.jpg 730w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/brain-1845962_960_720.jpg 952w\" alt=\"caf\u00e9, diabetes, cardiovascular, cancro, neurodegenerativas, benef\u00edcios, riscos\" width=\"511\" height=\"387\" \/><\/p>\n<h3>Alzheimer<\/h3>\n<p>V\u00e1rios estudos mostram que os\u00a0<strong>consumidores regulares de caf\u00e9 t\u00eam um risco menor de sofrer de Alzheimer<\/strong>.<\/p>\n<p>Uma subst\u00e2ncia ainda n\u00e3o identificada presente no caf\u00e9 \u00e9 a respons\u00e1vel por tornar a bebida num importante aliado na preven\u00e7\u00e3o do Alzheimer. Uma pesquisa publicada no peri\u00f3dico\u00a0<strong>Journal of Alzheimer\u2019s Disease<\/strong>\u00a0demonstrou que a intera\u00e7\u00e3o dessa subst\u00e2ncia com a cafe\u00edna\u00a0<strong>aumentou os n\u00edveis do fator G-CSF<\/strong>, respons\u00e1vel por evitar o progresso da doen\u00e7a, em ratos.<\/p>\n<h3>Parkinson<\/h3>\n<p>Em diversos estudos epidemiol\u00f3gicos, as pessoas que bebem caf\u00e9 apresentam um risco inferior de desenvolver a doen\u00e7a de Parkinson. Ao contr\u00e1rio de outras patologias, o consumo do descafeinado n\u00e3o demonstra resultados significativos.<\/p>\n<p>Concluindo, na\u00a0<strong>doen\u00e7a de Parkinson a cafe\u00edna \u00e9 a \u201crainha\u201d dos efeitos ben\u00e9ficos!<\/strong><\/p>\n<h2>Sistema cardiovascular<\/h2>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-85391 \" src=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/coffee-cup-2317201_960_720-1-350x233.jpg\" sizes=\"(max-width: 350px) 100vw, 350px\" srcset=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/coffee-cup-2317201_960_720-1-350x233.jpg 350w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/coffee-cup-2317201_960_720-1-95x63.jpg 95w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/coffee-cup-2317201_960_720-1-768x512.jpg 768w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/coffee-cup-2317201_960_720-1-730x487.jpg 730w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/coffee-cup-2317201_960_720-1.jpg 960w\" alt=\"caf\u00e9, diabetes, cardiovascular, cancro, neurodegenerativas, benef\u00edcios, riscos\" width=\"557\" height=\"371\" \/><\/p>\n<h4>Sem d\u00favida, este \u00e9 o ponto de maior controv\u00e9rsia!<\/h4>\n<p>Afirma-se frequentemente que a cafe\u00edna pode aumentar a press\u00e3o arterial! O que \u00e9 verdade\u2026 mas o efeito \u00e9 pequeno (3-4 mmHg). Para a maioria das pessoas, desaparece quando tomado regularmente.<\/p>\n<h4>No entanto, o efeito pode persistir em algumas pessoas! Assim sendo, caso tenha Hipertens\u00e3o arterial, tome no m\u00e1ximo uma x\u00edcara!<\/h4>\n<p>Pacientes que tomam f\u00e1rmacos para hipertens\u00e3o arterial devem evitar caf\u00e9 sol\u00favel instant\u00e2neo que cont\u00eam elevadas concentra\u00e7\u00f5es de pot\u00e1ssio.\u00a0<strong>E ainda, esperar cerca de 30 minutos ou mais entre a medica\u00e7\u00e3o e a bebida!<\/strong><\/p>\n<p>Similarmente, pessoas com insufici\u00eancia card\u00edaca, devem tamb\u00e9m evitar esta bebida! Pois pode colocar o cora\u00e7\u00e3o sob maior press\u00e3o. Nesse caso \u00e9 aconselhado que desista imediatamente de beber caf\u00e9.<\/p>\n<ul>\n<li><strong>Conselho: Escolha cevada, que tem um gosto semelhante!<\/strong><\/li>\n<\/ul>\n<p>Em suma, ainda n\u00e3o se pode afirmar nada em concreto uma vez que os estudos divergem entre si. Contudo, quem tiver problemas card\u00edacos deve consultar o seu m\u00e9dico!<\/p>\n<h2>C\u00e2ncer<\/h2>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-85392 size-medium\" src=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/offal-1463369_960_720-350x328.png\" sizes=\"(max-width: 350px) 100vw, 350px\" srcset=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/offal-1463369_960_720-350x328.png 350w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/offal-1463369_960_720-80x75.png 80w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/offal-1463369_960_720.png 768w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/offal-1463369_960_720-730x684.png 730w\" alt=\"caf\u00e9, diabetes, cardiovascular, cancro, neurodegenerativas, benef\u00edcios, riscos\" width=\"350\" height=\"328\" \/><\/p>\n<p>&nbsp;<\/p>\n<h4>Esta bebida tem demonstrado ser protetora contra o c\u00e2ncer de f\u00edgado e colo-retal.<\/h4>\n<p>Contudo, o processo\u00a0torrefa\u00e7\u00e3o dos gr\u00e3os, pode produzir acrilamida!\u00a0<strong>Esta subst\u00e2ncia\u00a0tem evid\u00eancias de genotoxicidade em animais<\/strong>. No entanto, ainda n\u00e3o se encontram estudos conclusivos em humanos.<\/p>\n<hr \/>\n<h2>Em suma, tudo depende da dose! N\u00e3o h\u00e1 nada t\u00e3o inerte que seja desprovido de risco\u2026 A modera\u00e7\u00e3o \u00e9 tudo!<\/h2>\n<p>Os benef\u00edcios do consumo do caf\u00e9 parecem superar os riscos!\u00a0<strong>Contudo, sem a\u00e7\u00facar nem ado\u00e7ante!<\/strong>\u00a0E sempre de forma moderada, n\u00e3o superior a 3 ch\u00e1venas por dia!<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-85388\" src=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/men-2425121_960_720-350x233.jpg\" sizes=\"(max-width: 470px) 100vw, 470px\" srcset=\"https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/men-2425121_960_720-350x233.jpg 350w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/men-2425121_960_720-95x63.jpg 95w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/men-2425121_960_720-768x511.jpg 768w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/men-2425121_960_720-730x486.jpg 730w, https:\/\/leakpt-a790.kxcdn.com\/wp-content\/uploads\/2018\/08\/men-2425121_960_720.jpg 960w\" alt=\"caf\u00e9, diabetes, cardiovascular, cancro, neurodegenerativas, benef\u00edcios, riscos\" width=\"620\" height=\"413\" \/><\/p>\n<p>&nbsp;<\/p>\n<h4>Mulheres gr\u00e1vidas ou com problemas p\u00f3s-menopausa devem evitar o consumo excessivo de caf\u00e9. Isto porque algumas das subst\u00e2ncias presentes no caf\u00e9 interferem com certos horm\u00f4nios.<\/h4>\n<p>Assim,\u00a0para mulheres gr\u00e1vidas \u00e9 aconselhado limitar a ingest\u00e3o de cafe\u00edna para 200mg. Ou seja, n\u00e3o exceder duas x\u00edcaras de caf\u00e9 por dia! Contudo a cafe\u00edna n\u00e3o \u00e9 exclusiva de caf\u00e9. Coca-cola, Ice tea, alguns ch\u00e1s e bebidas achocolatadas tamb\u00e9m s\u00e3o fonte desta subst\u00e2ncia estimulante!<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Fontes:<\/strong>\u00a0<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/28675917\">1<\/a>,\u00a0<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/25277696\">2<\/a>,\u00a0<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/21432699\">3<\/a>,\u00a0<a href=\"https:\/\/www.healthline.com\/nutrition\/top-13-evidence-based-health-benefits-of-coffee#section7\">4<\/a>,\u00a0<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/23756182\">5<\/a>.<\/p>\n<p>&nbsp;<\/p>\n<p><em><a title=\"Artigos de Joana Morais\" href=\"https:\/\/www.leak.pt\/author\/joana\/\" rel=\"author\">Joana Morais<\/a> &#8211;\u00a0Desde que me conhe\u00e7o a \u00e1rea da sa\u00fade sempre me fascinou, com grande foco na nutri\u00e7\u00e3o, desejando melhorar a minha qualidade de vida e a de quem me rodeia. Por isso, decidi enveredar pelo mestrado integrado em Ci\u00eancias Farmac\u00eauticas, Faculdade de Farm\u00e1cia da Universidade de Lisboa.<\/em><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.leak.pt\/cafe-o-que-diz-a-ciencia-beneficios-e-riscos-para-a-saude\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.leak.pt\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O caf\u00e9, depois da \u00e1gua, \u00e9 a\u00a0bebida mais popular do mundo.\u00a0As propriedades promotoras para a sa\u00fade s\u00e3o frequentemente atribu\u00eddas \u00e0 sua rica composi\u00e7\u00e3o em fitoqu\u00edmicos. Incluindo\u00a0cafe\u00edna, \u00e1cido clorog\u00eanico, \u00e1cido cafeico, hidroxi-hidroquinona, etc. Contudo, as controv\u00e9rsias em rela\u00e7\u00e3o aos seus benef\u00edcios e riscos ainda existem!\u00a0Existem evid\u00eancias confi\u00e1veis a apoiar o seu potencial de promo\u00e7\u00e3o da sa\u00fade. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18904,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[20,188],"tags":[401,554,28,994],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>Caf\u00e9, o que diz a ci\u00eancia? Conhe\u00e7a os benef\u00edcios e riscos para a sa\u00fade - TiaBeth.com<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.tiabeth.com.br\/index.php\/2018\/08\/12\/cafe-o-que-diz-a-ciencia-conheca-os-beneficios-e-riscos-para-a-saude\/\" \/>\r\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Caf\u00e9, o que diz a ci\u00eancia? 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