{"id":4357,"date":"2015-12-11T20:26:47","date_gmt":"2015-12-11T20:26:47","guid":{"rendered":"https:\/\/askthescientists.com\/?post_type=qa&#038;p=4357\/"},"modified":"2026-01-19T11:45:17","modified_gmt":"2026-01-19T18:45:17","slug":"how-do-i-convert-iu-to-mg-or-mcg","status":"publish","type":"qa","link":"https:\/\/askthescientists.com\/es\/qa\/how-do-i-convert-iu-to-mg-or-mcg\/","title":{"rendered":"Conversiones vitam\u00ednicas \u2013 Unidades Internacionales (UI) a mg o mcg"},"content":{"rendered":"<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-71628\" src=\"https:\/\/askthescientists.com\/wp-content\/uploads\/2015\/12\/AdobeStock_48997861.jpeg\" alt=\"\" width=\"835\" height=\"513\" srcset=\"https:\/\/askthescientists.com\/wp-content\/uploads\/2015\/12\/AdobeStock_48997861.jpeg 835w, https:\/\/askthescientists.com\/wp-content\/uploads\/2015\/12\/AdobeStock_48997861-400x246.jpeg 400w, https:\/\/askthescientists.com\/wp-content\/uploads\/2015\/12\/AdobeStock_48997861-768x472.jpeg 768w, https:\/\/askthescientists.com\/wp-content\/uploads\/2015\/12\/AdobeStock_48997861-705x433.jpeg 705w\" sizes=\"(max-width: 835px) 100vw, 835px\" \/><\/p>\n<p>Cuando mira la etiqueta de un alimento, puede confundirse ante la variedad de medidas diferentes que se utilizan para indicar la cantidad de cada vitamina que contiene ese alimento. Encontrar\u00e1 t\u00e9rminos como mg, mcg, UI y otros. \u00bfPor qu\u00e9 se utilizan diferentes unidades y c\u00f3mo se hace la conversi\u00f3n entre estas diferentes unidades?<\/p>\n<p>Las Unidades Internacionales (UI) son una de las unidades estandarizadas que se utilizan para calcular o medir la potencia de las vitaminas y su eficacia biol\u00f3gica. Para muchas vitaminas es preferible usar las Unidades Internacionales en lugar de medir su peso, ya que las diferentes formas vitam\u00ednicas pueden tener diferentes niveles de potencia. Las Unidades Internacionales proporcionan una forma estandarizada de calcular la potencia de una vitamina en diferentes formas vitam\u00ednicas.<\/p>\n<h2>UI, mcg y otras abreviaturas de unidades de la etiqueta<\/h2>\n<p>UI (IU, en ingl\u00e9s) = Unidad Internacional<\/p>\n<p>EAR (RAE, en ingl\u00e9s) = Equivalentes de Actividad Retinal<\/p>\n<p>EFD (DFE, en ingl\u00e9s) = Equivalente de Folato Dietario<\/p>\n<p>EN (NE, en ingl\u00e9s) = Equivalente de Niacina<\/p>\n<p>mg = miligramo<\/p>\n<p>mcg = \u03bcg = microgramo<\/p>\n<h2>Conversiones y c\u00e1lculos de unidades de vitaminas<\/h2>\n<p>La informaci\u00f3n que figura a continuaci\u00f3n proporciona una conversi\u00f3n aproximada de vitaminas, de unidades estandarizadas (UI, EAR, EFD, EN) a miligramos o microgramos.<\/p>\n<h3>Vitamina A<\/h3>\n<style>input[type=number]::-webkit-inner-spin-button,\ninput[type=number]::-webkit-outer-spin-button {\n-webkit-appearance: none;\nmargin: 0;\n}\ninput[type=number]{-moz-appearance: textfield;}<\/style><style>@media (max-width:480px){#cp_calculatedfieldsf_pform_1{min-height:2512px;}}@media (max-width:768px){#cp_calculatedfieldsf_pform_1{min-height:1266px;}}@media (max-width:1024px){#cp_calculatedfieldsf_pform_1{min-height:1000px;}}@media (min-width:1024px){#cp_calculatedfieldsf_pform_1{min-height:1000px;}}<\/style><form name=\"cp_calculatedfieldsf_pform_1\" id=\"cp_calculatedfieldsf_pform_1\" action=\"https:\/\/askthescientists.com\/es\/qa\/how-do-i-convert-iu-to-mg-or-mcg\/\" method=\"post\" enctype=\"multipart\/form-data\" onsubmit=\"return fbuilderjQuery.fbuilder.doValidate(this);\" class=\"cff-form no-prefetch  cff-form-12 cp_cff_13\"  dir=\"ltr\" data-nonce=\"38547f2100\">\n<input type=\"hidden\" name=\"cp_calculatedfieldsf_pform_psequence\" value=\"_1\" \/>\n<input type=\"hidden\" name=\"cp_calculatedfieldsf_id\" value=\"12\" \/>\n<input type=\"hidden\" name=\"cp_ref_page\" value=\"https:\/\/askthescientists.com\/es\" \/>\n<pre style=\"display:none 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id=\"formheader_2\"><\/div>\n\t\t<div id=\"fieldlist_2\"><\/div>\n\t\t<div class=\"clearer\"><\/div>\n\t<\/div>\n<\/div>\n\t<div class=\"clearer\"><\/div>\n\t<input type=\"hidden\" id=\"_cpcff_public_nonce\" name=\"_cpcff_public_nonce\" value=\"b0a428608f\" \/><input type=\"hidden\" name=\"_wp_http_referer\" value=\"\/es\/wp-json\/wp\/v2\/qa\/4357\" \/><input type=\"hidden\" name=\"cff_form_start_time\" value=\"tMb1Qh6PRhbdd7hdBoOrAA==\"><\/form>\n\t\n<h4>Niacina<\/h4>\n<style>input[type=number]::-webkit-inner-spin-button,\ninput[type=number]::-webkit-outer-spin-button {\n-webkit-appearance: none;\nmargin: 0;\n}\ninput[type=number]{-moz-appearance: textfield;}<\/style><style>@media (max-width:480px){#cp_calculatedfieldsf_pform_3{min-height:1443px;}}@media (max-width:768px){#cp_calculatedfieldsf_pform_3{min-height:844px;}}@media (max-width:1024px){#cp_calculatedfieldsf_pform_3{min-height:660px;}}@media (min-width:1024px){#cp_calculatedfieldsf_pform_3{min-height:456px;}}<\/style><form 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id=\"fieldlist_3\"><\/div>\n\t\t<div class=\"clearer\"><\/div>\n\t<\/div>\n<\/div>\n\t<div class=\"clearer\"><\/div>\n\t<input type=\"hidden\" id=\"_cpcff_public_nonce\" name=\"_cpcff_public_nonce\" value=\"1c05a574c1\" \/><input type=\"hidden\" name=\"_wp_http_referer\" value=\"\/es\/wp-json\/wp\/v2\/qa\/4357\" \/><input type=\"hidden\" name=\"cff_form_start_time\" value=\"tMb1Qh6PRhbdd7hdBoOrAA==\"><\/form>\n\t\n<h3>Vitamina D<\/h3>\n<style>input[type=number]::-webkit-inner-spin-button,\ninput[type=number]::-webkit-outer-spin-button {\n-webkit-appearance: none;\nmargin: 0;\n}\ninput[type=number]{-moz-appearance: textfield;}<\/style><style>@media (max-width:480px){#cp_calculatedfieldsf_pform_4{min-height:579px;}}@media (max-width:768px){#cp_calculatedfieldsf_pform_4{min-height:422px;}}@media (max-width:1024px){#cp_calculatedfieldsf_pform_4{min-height:277px;}}@media (min-width:1024px){#cp_calculatedfieldsf_pform_4{min-height:320px;}}<\/style><form name=\"cp_calculatedfieldsf_pform_4\" id=\"cp_calculatedfieldsf_pform_4\" action=\"https:\/\/askthescientists.com\/es\/qa\/how-do-i-convert-iu-to-mg-or-mcg\/\" method=\"post\" enctype=\"multipart\/form-data\" onsubmit=\"return fbuilderjQuery.fbuilder.doValidate(this);\" class=\"cff-form no-prefetch  cff-form-15 cp_cff_13\"  dir=\"ltr\" data-nonce=\"38547f2100\">\n<input type=\"hidden\" name=\"cp_calculatedfieldsf_pform_psequence\" value=\"_4\" \/>\n<input type=\"hidden\" name=\"cp_calculatedfieldsf_id\" value=\"15\" \/>\n<input type=\"hidden\" name=\"cp_ref_page\" value=\"https:\/\/askthescientists.com\/es\" \/>\n<pre style=\"display:none !important;\"><script data-category=\"functional\" type=\"text\/javascript\">form_structure_4=[[{\"form_identifier\":\"\",\"name\":\"fieldname3\",\"fieldlayout\":\"default\",\"shortlabel\":\"\",\"index\":0,\"ftype\":\"fdiv\",\"userhelp\":\"\",\"audiotutorial\":\"\",\"userhelpTooltip\":false,\"tooltipIcon\":false,\"csslayout\":\"\",\"hidefield\":false,\"advanced\":{\"css\":{\"container\":{\"label\":\"Field container div tag\",\"rules\":{\"width\":\"100%\"}},\"label\":{\"label\":\"Field label\",\"rules\":{}},\"input\":{\"label\":\"Input tag\",\"rules\":{}},\"help\":{\"label\":\"Instructions for 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id=\"fieldlist_4\"><\/div>\n\t\t<div class=\"clearer\"><\/div>\n\t<\/div>\n<\/div>\n\t<div class=\"clearer\"><\/div>\n\t<input type=\"hidden\" id=\"_cpcff_public_nonce\" name=\"_cpcff_public_nonce\" value=\"f93030106d\" \/><input type=\"hidden\" name=\"_wp_http_referer\" value=\"\/es\/wp-json\/wp\/v2\/qa\/4357\" \/><input type=\"hidden\" name=\"cff_form_start_time\" value=\"tMb1Qh6PRhbdd7hdBoOrAA==\"><\/form>\n\t\n<h3>Vitamina E<\/h3>\n<style>input[type=number]::-webkit-inner-spin-button,\ninput[type=number]::-webkit-outer-spin-button {\n-webkit-appearance: none;\nmargin: 0;\n}\ninput[type=number]{-moz-appearance: textfield;}<\/style><style>@media (max-width:480px){#cp_calculatedfieldsf_pform_5{min-height:942px;}}@media (max-width:768px){#cp_calculatedfieldsf_pform_5{min-height:422px;}}@media (max-width:1024px){#cp_calculatedfieldsf_pform_5{min-height:320px;}}@media (min-width:1024px){#cp_calculatedfieldsf_pform_5{min-height:320px;}}<\/style><form name=\"cp_calculatedfieldsf_pform_5\" id=\"cp_calculatedfieldsf_pform_5\" action=\"https:\/\/askthescientists.com\/es\/qa\/how-do-i-convert-iu-to-mg-or-mcg\/\" method=\"post\" enctype=\"multipart\/form-data\" onsubmit=\"return fbuilderjQuery.fbuilder.doValidate(this);\" class=\"cff-form no-prefetch  cff-form-16 cp_cff_13\"  dir=\"ltr\" data-nonce=\"38547f2100\">\n<input type=\"hidden\" name=\"cp_calculatedfieldsf_pform_psequence\" value=\"_5\" \/>\n<input type=\"hidden\" name=\"cp_calculatedfieldsf_id\" value=\"16\" \/>\n<input type=\"hidden\" name=\"cp_ref_page\" value=\"https:\/\/askthescientists.com\/es\" \/>\n<pre style=\"display:none !important;\"><script data-category=\"functional\" 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field\",\"rules\":{}},\"help\":{\"label\":\"Instructions for users\",\"rules\":{}}}},\"title\":\"= 0.45 mg de dl-alfa tocoferil (sint\\u00e9tico)\",\"_developerNotes\":\"\",\"predefined\":\"\",\"required\":false,\"exclude\":false,\"accept_html\":false,\"size\":\"large\",\"eq\":\"fieldname5*0.45\",\"min\":\"\",\"max\":\"\",\"suffix\":\"\",\"prefix\":\"\",\"decimalsymbol\":\".\",\"groupingsymbol\":\"\",\"readonly\":true,\"currency\":false,\"noEvalIfManual\":true,\"formatDynamically\":false,\"dynamicEval\":true,\"validate\":true,\"fBuild\":{},\"parent\":\"fieldname4\"}],{\"0\":{\"title\":\"\",\"titletag\":\"H2\",\"textalign\":\"default\",\"headertextcolor\":\"\",\"description\":\"\",\"formlayout\":\"top_aligned\",\"formtemplate\":\"cp_cff_13\",\"evalequations\":1,\"evalequations_delay\":0,\"evalequationsevent\":2,\"direction\":\"ltr\",\"loading_animation\":0,\"autocomplete\":1,\"persistence\":0,\"animate_form\":0,\"animation_effect\":\"fade\",\"customstyles\":\"input[type=number]::-webkit-inner-spin-button,\\ninput[type=number]::-webkit-outer-spin-button {\\n-webkit-appearance: none;\\nmargin: 0;\\n}\\ninput[type=number]{-moz-appearance: textfield;}\",\"advanced\":{\"css\":{\"header\":{\"label\":\"Form header\",\"rules\":{}},\"title\":{\"label\":\"Form title\",\"rules\":{}},\"description\":{\"label\":\"Form description\",\"rules\":{}},\"form\":{\"label\":\"Form area\",\"rules\":{}},\"buttons\":{\"label\":\"Form context buttons (Next page, Previous page, Submit)\",\"rules\":{}},\"buttons_hover\":{\"label\":\"Form context buttons hover\",\"rules\":{}},\"tooltips\":{\"label\":\"Instructions for users tooltips\",\"rules\":{}},\"error_bubble\":{\"label\":\"Error bubbles\",\"rules\":{}},\"error_bubble_arrow\":{\"label\":\"Error bubble arrow\",\"rules\":{\"border-bottom-color\":\"\"},\"restrict\":true},\"required_field_asterisk\":{\"label\":\"Asterisk for required fields\",\"rules\":{}}}}},\"formid\":\"cp_calculatedfieldsf_pform_5\"}];<\/script><\/pre>\n<div id=\"fbuilder\">\n\t\t<div id=\"fbuilder_5\">\n\t\t<div id=\"formheader_5\"><\/div>\n\t\t<div id=\"fieldlist_5\"><\/div>\n\t\t<div class=\"clearer\"><\/div>\n\t<\/div>\n<\/div>\n\t<div class=\"clearer\"><\/div>\n\t<input type=\"hidden\" id=\"_cpcff_public_nonce\" name=\"_cpcff_public_nonce\" value=\"73f041d7d0\" \/><input type=\"hidden\" name=\"_wp_http_referer\" value=\"\/es\/wp-json\/wp\/v2\/qa\/4357\" \/><input type=\"hidden\" name=\"cff_form_start_time\" value=\"tMb1Qh6PRhbdd7hdBoOrAA==\"><\/form>\n\t\n<div  class='togglecontainer av-d97g4-f6d9b087218c8d820c668dd39adea670  avia-builder-el-0  avia-builder-el-no-sibling  toggle_close_all' >\n<section class='av_toggle_section av-bbuj8-897c9be7b8e5522a887557e0d0ea7bcc'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  ><p id='toggle-toggle-id-1' data-fake-id='#toggle-id-1' class='toggler  av-title-above '  itemprop=\"headline\"  role='tab' tabindex='0' aria-controls='toggle-id-1' data-slide-speed=\"200\" data-title=\"Referencias\" data-title-open=\"\" data-aria_collapsed=\"Click to expand: Referencias\" data-aria_expanded=\"Click to collapse: Referencias\">Referencias<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='toggle-id-1' aria-labelledby='toggle-toggle-id-1' role='region' class='toggle_wrap  av-title-above'  ><div class='toggle_content invers-color '  itemprop=\"text\" ><p><a href=\"https:\/\/www.fda.gov\/media\/129863\/download\">https:\/\/www.fda.gov\/media\/129863\/download<\/a><\/p>\n<\/div><\/div><\/div><\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Cuando mira la etiqueta de un alimento, puede confundirse ante la variedad de medidas diferentes que se utilizan para indicar la cantidad de cada vitamina que contiene ese alimento. Encontrar\u00e1 t\u00e9rminos como mg, mcg, UI y otros. \u00bfPor qu\u00e9 se utilizan diferentes unidades y c\u00f3mo se hace la conversi\u00f3n entre estas diferentes unidades? Las Unidades [&hellip;]<\/p>\n","protected":false},"author":10897,"featured_media":71635,"menu_order":0,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"qa-category":[],"qa-tag":[20782],"class_list":["post-4357","qa","type-qa","status-publish","format-standard","has-post-thumbnail","hentry","qa-tag-essential-nutrients"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Conversiones vitam\u00ednicas \u2013 Unidades Internacionales (UI) a mg o mcg - Ask The Scientists<\/title>\n<meta name=\"description\" content=\"Las Unidades Internacionales (UI) se utilizan para medir la potencia de las vitaminas. La f\u00f3rmula para convertir las Unidades Internacionales a mg o mcg depender\u00e1 de la forma vitam\u00ednica que estemos midiendo. Encuentre aqu\u00ed los c\u00e1lculos comunes de vitaminas.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/askthescientists.com\/es\/qa\/how-do-i-convert-iu-to-mg-or-mcg\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Conversiones vitam\u00ednicas \u2013 Unidades Internacionales (UI) a mg o mcg - Ask The Scientists\" \/>\n<meta property=\"og:description\" content=\"Las Unidades Internacionales (UI) se utilizan para medir la potencia de las vitaminas. La f\u00f3rmula para convertir las Unidades Internacionales a mg o mcg depender\u00e1 de la forma vitam\u00ednica que estemos midiendo. 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