{"id":669,"date":"2017-10-26T15:40:36","date_gmt":"2017-10-26T15:40:36","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/sunynutrition\/?post_type=chapter&#038;p=669"},"modified":"2017-11-14T15:22:25","modified_gmt":"2017-11-14T15:22:25","slug":"9-24-vitamin-e-deficiency-toxicity","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/chapter\/9-24-vitamin-e-deficiency-toxicity\/","title":{"raw":"9.24 Vitamin E Deficiency &amp; Toxicity","rendered":"9.24 Vitamin E Deficiency &amp; Toxicity"},"content":{"raw":"<div class=\"__UNKNOWN__\">\r\n\r\nVitamin E deficiency is extremely rare. Depletion studies require years on a vitamin E-deficient diet to cause deficiency<sup>1<\/sup>. Deficiency primarily occurs in people with lipid malabsorption problems or Ataxia with Isolated Vitamin E Deficiency (AVED). Individuals with AVED have a mutation in their alpha-TTP that prevents it from functioning correctly. The primary symptoms of vitamin E deficiency are neurological problems.\r\n\r\nHigh levels of vitamin E intake do not result in a noted toxicity. However, higher levels of intake are associated with decreased blood coagulation. In particular, hemorrhagic stroke has been linked to high vitamin E levels. The link below shows that in this condition a blood vessel ruptures or leaks in the brain.\r\n<table><colgroup> <col \/><\/colgroup>\r\n<tbody>\r\n<tr>\r\n<td><b>Web Link<\/b>\r\n\r\n<a href=\"http:\/\/heart.arizona.edu\/heart-health\/preventing-stroke\/lowering-risks-stroke\"><u>Hemorrhagic Stroke<\/u><\/a>-<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nIt is believed that this increased bleeding risk is due to a vitamin E metabolite that has anti-vitamin K activity. This potential antagonism will be described more in the vitamin K section.\r\n\r\n<b>References &amp; Links<\/b>\r\n\r\n1. DRI (2000) Dietary reference intakes for vitamin C, vitamin E, selenium, and carotenoids.\r\n\r\n<b>Link<\/b>\r\n\r\nHemorrhagic Stroke - http:\/\/heart.arizona.edu\/heart-health\/preventing-stroke\/lowering-risks-stroke\r\n\r\n<\/div>","rendered":"<div class=\"__UNKNOWN__\">\n<p>Vitamin E deficiency is extremely rare. Depletion studies require years on a vitamin E-deficient diet to cause deficiency<sup>1<\/sup>. Deficiency primarily occurs in people with lipid malabsorption problems or Ataxia with Isolated Vitamin E Deficiency (AVED). Individuals with AVED have a mutation in their alpha-TTP that prevents it from functioning correctly. The primary symptoms of vitamin E deficiency are neurological problems.<\/p>\n<p>High levels of vitamin E intake do not result in a noted toxicity. However, higher levels of intake are associated with decreased blood coagulation. In particular, hemorrhagic stroke has been linked to high vitamin E levels. The link below shows that in this condition a blood vessel ruptures or leaks in the brain.<\/p>\n<table>\n<colgroup>\n<col \/><\/colgroup>\n<tbody>\n<tr>\n<td><b>Web Link<\/b><\/p>\n<p><a href=\"http:\/\/heart.arizona.edu\/heart-health\/preventing-stroke\/lowering-risks-stroke\"><u>Hemorrhagic Stroke<\/u><\/a>&#8211;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>It is believed that this increased bleeding risk is due to a vitamin E metabolite that has anti-vitamin K activity. This potential antagonism will be described more in the vitamin K section.<\/p>\n<p><b>References &amp; Links<\/b><\/p>\n<p>1. DRI (2000) Dietary reference intakes for vitamin C, vitamin E, selenium, and carotenoids.<\/p>\n<p><b>Link<\/b><\/p>\n<p>Hemorrhagic Stroke &#8211; http:\/\/heart.arizona.edu\/heart-health\/preventing-stroke\/lowering-risks-stroke<\/p>\n<\/div>\n\n\t\t\t <section class=\"citations-section\" role=\"contentinfo\">\n\t\t\t <h3>Candela Citations<\/h3>\n\t\t\t\t\t <div>\n\t\t\t\t\t\t <div id=\"citation-list-669\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Shared previously<\/div><ul class=\"citation-list\"><li>Kansas State University Human Nutrition Flexbook. <strong>Authored by<\/strong>: Brian Lindshield. <strong>Provided by<\/strong>: Kansas State University. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/goo.gl\/vOAnR\">http:\/\/goo.gl\/vOAnR<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><\/ul><\/div>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section>","protected":false},"author":44985,"menu_order":11,"template":"","meta":{"_candela_citation":"[{\"type\":\"cc\",\"description\":\"Kansas State University Human Nutrition Flexbook\",\"author\":\"Brian Lindshield\",\"organization\":\"Kansas State University\",\"url\":\"goo.gl\/vOAnR\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"\"}]","CANDELA_OUTCOMES_GUID":"","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-669","chapter","type-chapter","status-publish","hentry"],"part":619,"_links":{"self":[{"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/pressbooks\/v2\/chapters\/669","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/wp\/v2\/users\/44985"}],"version-history":[{"count":2,"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/pressbooks\/v2\/chapters\/669\/revisions"}],"predecessor-version":[{"id":1767,"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/pressbooks\/v2\/chapters\/669\/revisions\/1767"}],"part":[{"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/pressbooks\/v2\/parts\/619"}],"metadata":[{"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/pressbooks\/v2\/chapters\/669\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/wp\/v2\/media?parent=669"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/pressbooks\/v2\/chapter-type?post=669"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/wp\/v2\/contributor?post=669"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/atd-herkimer-nutrition\/wp-json\/wp\/v2\/license?post=669"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}