{"id":266532,"date":"2025-07-23T04:45:38","date_gmt":"2025-07-23T04:45:38","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=266532"},"modified":"2025-07-23T04:45:40","modified_gmt":"2025-07-23T04:45:40","slug":"rons-diet-lacks-niacin","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/23\/rons-diet-lacks-niacin\/","title":{"rendered":"Ron&#8217;s diet lacks niacin"},"content":{"rendered":"\n<p>Ron&#8217;s diet lacks niacin. He hasn&#8217;t developed pellagra, because he consumes a high-protein diet that contains plenty of niacin. Multiple Choice <\/p>\n\n\n\n<p>A beta-carotene <\/p>\n\n\n\n<p>B alpha-tocopherol <\/p>\n\n\n\n<p>C tryptophan <\/p>\n\n\n\n<p>D alanine<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\">The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The correct answer is <strong>C) tryptophan<\/strong>.<\/p>\n\n\n\n<p>Explanation:<br>Niacin (vitamin B3) is essential for the body, and it plays a critical role in cellular metabolism, particularly in energy production. Pellagra is a condition caused by niacin deficiency, characterized by symptoms like diarrhea, dermatitis, and dementia. However, the body can synthesize niacin from tryptophan, an amino acid that is found in many high-protein foods.<\/p>\n\n\n\n<p>In Ron&#8217;s case, although his diet may lack niacin directly, his high-protein intake provides sufficient tryptophan. This amino acid can be converted into niacin in the body, preventing the development of pellagra. The body is capable of synthesizing a certain amount of niacin from tryptophan, and when dietary niacin intake is low, tryptophan can make up for the deficiency to some extent.<\/p>\n\n\n\n<p>Now, let&#8217;s consider the other options:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A) Beta-carotene<\/strong>: This is a precursor to vitamin A, not related to niacin synthesis. Beta-carotene is primarily involved in vision and immune function.<\/li>\n\n\n\n<li><strong>B) Alpha-tocopherol<\/strong>: This is a form of vitamin E, which is an antioxidant and not involved in niacin production.<\/li>\n\n\n\n<li><strong>D) Alanine<\/strong>: This is another amino acid, but it is not directly involved in the conversion to niacin.<\/li>\n<\/ul>\n\n\n\n<p>Thus, tryptophan is the correct answer because it is the amino acid from which the body can synthesize niacin, preventing deficiencies even if niacin is not directly consumed in the diet.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ron&#8217;s diet lacks niacin. He hasn&#8217;t developed pellagra, because he consumes a high-protein diet that contains plenty of niacin. Multiple Choice A beta-carotene B alpha-tocopherol C tryptophan D alanine The correct answer and explanation is: The correct answer is C) tryptophan. Explanation:Niacin (vitamin B3) is essential for the body, and it plays a critical role [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-266532","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/266532","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=266532"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/266532\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=266532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=266532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=266532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}