{"id":14328,"date":"2017-10-16T06:26:51","date_gmt":"2017-10-16T00:56:51","guid":{"rendered":"http:\/\/www.cardiophile.com\/?p=14328"},"modified":"2017-10-16T06:26:51","modified_gmt":"2017-10-16T00:56:51","slug":"why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/general\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\/","title":{"rendered":"Why are patients on Warfarin (blood thinner) asked not to take green leafy vegetables?"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-14333 size-thumbnail\" src=\"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2017\/10\/blood-thinner-150x123.png\" alt=\"\" width=\"150\" height=\"123\" \/><\/p>\n<h1><strong><span style=\"color: #008000;\">Why are patients on Warfarin (blood thinner) asked not to take green leafy vegetables?<\/span><\/strong><\/h1>\n<p>Leafy vegetables are rich in vitamin K. Warfarin group of blood thinners prevent the clotting of blood by antagonizing the effect of vitamin K in the synthesis of blood clotting factors by the liver. Hence if green leafy vegetables are taken by a person taking Warfarin, its effectiveness will be less. Moreover the dose of Warfarin is adjusted using a test known as prothrombin time with international normalized ratio (PT-INR). When leafy vegetables are being taken along with Warfarin, INR levels will be low and the physician if unaware of the intake of green leafy vegetable, up titrates the dose of Warfarin for better therapeutic effect. After that, if the individual stops taking green leafy vegetables, the INR will increase and cause bleeding.<\/p>\n<h2><span style=\"color: #0000ff;\"><strong><em>Note on Vitamin K<\/em><\/strong><\/span><\/h2>\n<p>The form of Vitamin K present in green leafy vegetables is Vitamin K1 or\u00a0Phylloquinone (synonym: Phytomenadione). Vitamin K produced by gut bacteria and that seen in fermented dairy products is Vitamin K2 or Menaquinone. Gut bacteria can also convert Vitamin K1 to K2. Vitamin K is present in large quantities in green leafy vegetables because of its integral role in photosynthesis. Synthetic form (Vitamin K3 or Menadiaone) is not preferred in view of adverse effects.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Why are patients on Warfarin (blood thinner) asked not to take green leafy vegetables? Leafy vegetables are rich in vitamin K. Warfarin group of blood thinners prevent the clotting of blood by antagonizing the effect of vitamin K in the synthesis of blood clotting factors by the liver. Hence if green leafy vegetables are taken [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":14334,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[7],"tags":[186,1081,1415,1425,1426],"class_list":["post-14328","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-blood-thinner","tag-precautions","tag-vitamin-k","tag-warfarin","tag-warfarin-and-leafy-vegetables"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why are patients on Warfarin (blood thinner) asked not to take green leafy vegetables? - All About Heart And Blood Vessels<\/title>\n<meta name=\"description\" content=\"Leafy vegetables are rich in vitamin K. Warfarin group of blood thinners prevent the clotting of blood by antagonizing the effect of vitamin K in the synthesis of blood clotting factors by the liver. Hence if green leafy vegetables are taken by a person taking Warfarin, its effectiveness will be less.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnsonfrancis.org\/general\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why are patients on Warfarin (blood thinner) asked not to take green leafy vegetables? - All About Heart And Blood Vessels\" \/>\n<meta property=\"og:description\" content=\"Leafy vegetables are rich in vitamin K. Warfarin group of blood thinners prevent the clotting of blood by antagonizing the effect of vitamin K in the synthesis of blood clotting factors by the liver. Hence if green leafy vegetables are taken by a person taking Warfarin, its effectiveness will be less.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/johnsonfrancis.org\/general\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\/\" \/>\n<meta property=\"og:site_name\" content=\"All About Heart And Blood Vessels\" \/>\n<meta property=\"article:published_time\" content=\"2017-10-16T00:56:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/johnsonfrancis.org\/general\/wp-content\/uploads\/2017\/10\/blood-thinner-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"195\" \/>\n\t<meta property=\"og:image:height\" content=\"160\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Johnson Francis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Johnson Francis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\\\/\"},\"author\":{\"name\":\"Johnson Francis\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/#\\\/schema\\\/person\\\/f35ea33ecf9c9923597de2691ebed1a7\"},\"headline\":\"Why are patients on Warfarin (blood thinner) asked not to take green leafy vegetables?\",\"datePublished\":\"2017-10-16T00:56:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\\\/\"},\"wordCount\":231,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/wp-content\\\/uploads\\\/2017\\\/10\\\/blood-thinner-1.png\",\"keywords\":[\"blood thinner\",\"precautions\",\"vitamin K\",\"Warfarin\",\"warfarin and leafy vegetables\"],\"articleSection\":[\"General\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\\\/\",\"url\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\\\/\",\"name\":\"Why are patients on Warfarin (blood thinner) asked not to take green leafy vegetables? - All About Heart And Blood Vessels\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/why-are-patients-on-warfarin-blood-thinner-asked-not-to-take-green-leafy-vegetables\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/wp-content\\\/uploads\\\/2017\\\/10\\\/blood-thinner-1.png\",\"datePublished\":\"2017-10-16T00:56:51+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/johnsonfrancis.org\\\/general\\\/#\\\/schema\\\/person\\\/f35ea33ecf9c9923597de2691ebed1a7\"},\"description\":\"Leafy vegetables are rich in vitamin K. 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