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class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_no.wikipedia.org&uselang=nb" class=""><span>Doner</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Opprett_konto&returnto=Vitamin+A" title="Du oppfordres til å opprette en konto og logge inn, men det er ikke obligatorisk" class=""><span>Opprett konto</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Logg_inn&returnto=Vitamin+A" title="Du oppfordres til å logge inn, men det er ikke obligatorisk [o]" 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user-links-collapsible-item" title="Brukermeny" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_no.wikipedia.org&uselang=nb"><span>Doner</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Spesial:Opprett_konto&returnto=Vitamin+A" title="Du oppfordres til å opprette en konto og logge inn, men det er ikke obligatorisk"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Opprett konto</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Spesial:Logg_inn&returnto=Vitamin+A" title="Du oppfordres til å logge inn, men det er ikke obligatorisk [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Logg inn</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Nettsted"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Innhold" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Innhold</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">skjul</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Til toppen)</div> </a> </li> <li id="toc-Egenskaper" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Egenskaper"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Egenskaper</span> </div> </a> <ul id="toc-Egenskaper-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Tegn_på_mangel" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tegn_på_mangel"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Tegn på mangel</span> </div> </a> <ul id="toc-Tegn_på_mangel-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Tegn_på_for_mye_A-vitamin" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tegn_på_for_mye_A-vitamin"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Tegn på for mye A-vitamin</span> </div> </a> <ul id="toc-Tegn_på_for_mye_A-vitamin-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Retinol" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Retinol"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Retinol</span> </div> </a> <ul id="toc-Retinol-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Karoten" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Karoten"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Karoten</span> </div> </a> <ul id="toc-Karoten-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Gode_kilder" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Gode_kilder"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Gode kilder</span> </div> </a> <button aria-controls="toc-Gode_kilder-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Vis/skjul underseksjonen Gode kilder</span> </button> <ul id="toc-Gode_kilder-sublist" class="vector-toc-list"> <li id="toc-Kilder_til_retinol" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Kilder_til_retinol"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1</span> <span>Kilder til retinol</span> </div> </a> <ul id="toc-Kilder_til_retinol-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Kilder_til_betakaroten_og_andre_karotener" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Kilder_til_betakaroten_og_andre_karotener"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.2</span> <span>Kilder til betakaroten og andre karotener</span> </div> </a> <ul id="toc-Kilder_til_betakaroten_og_andre_karotener-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Anbefalt_dose" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Anbefalt_dose"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Anbefalt dose</span> </div> </a> <ul id="toc-Anbefalt_dose-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referanser" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referanser"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Referanser</span> </div> </a> <ul id="toc-Referanser-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innhold" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Vis/skjul innholdsfortegnelsen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Vis/skjul innholdsfortegnelsen</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Vitamin A</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå til en artikkel på et annet språk. Tilgjengelig på 87 språk" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-87" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">87 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – dansk" lang="da" hreflang="da" data-title="Vitamin A" data-language-autonym="Dansk" data-language-local-name="dansk" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-fo mw-list-item"><a href="https://fo.wikipedia.org/wiki/A_vitamin" title="A vitamin – færøysk" lang="fo" hreflang="fo" data-title="A vitamin" data-language-autonym="Føroyskt" data-language-local-name="færøysk" class="interlanguage-link-target"><span>Føroyskt</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/A-v%C3%ADtam%C3%ADn" title="A-vítamín – islandsk" lang="is" hreflang="is" data-title="A-vítamín" data-language-autonym="Íslenska" data-language-local-name="islandsk" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Vitamien_A" title="Vitamien A – afrikaans" lang="af" hreflang="af" data-title="Vitamien A" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%81%D9%8A%D8%AA%D8%A7%D9%85%D9%8A%D9%86_%D8%A3%D9%84%D9%81" title="فيتامين ألف – arabisk" lang="ar" hreflang="ar" data-title="فيتامين ألف" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Vitamina_A" title="Vitamina A – asturisk" lang="ast" hreflang="ast" data-title="Vitamina A" data-language-autonym="Asturianu" data-language-local-name="asturisk" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/A_vitamini" title="A vitamini – aserbajdsjansk" lang="az" hreflang="az" data-title="A vitamini" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D9%88%DB%8C%D8%AA%D8%A7%D9%85%DB%8C%D9%86_%D8%A2" title="ویتامین آ – søraserbajdsjansk" lang="azb" hreflang="azb" data-title="ویتامین آ" data-language-autonym="تۆرکجه" data-language-local-name="søraserbajdsjansk" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-ban mw-list-item"><a href="https://ban.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – balinesisk" lang="ban" hreflang="ban" data-title="Vitamin A" data-language-autonym="Basa Bali" data-language-local-name="balinesisk" class="interlanguage-link-target"><span>Basa Bali</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AD%E0%A6%BF%E0%A6%9F%E0%A6%BE%E0%A6%AE%E0%A6%BF%E0%A6%A8_%E0%A6%8F" title="ভিটামিন এ – bengali" lang="bn" hreflang="bn" data-title="ভিটামিন এ" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Bitamina_A" title="Bitamina A – sentralbikol" lang="bcl" hreflang="bcl" data-title="Bitamina A" data-language-autonym="Bikol Central" data-language-local-name="sentralbikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%92%D0%B8%D1%82%D0%B0%D0%BC%D0%B8%D0%BD_%D0%90" title="Витамин А – bulgarsk" lang="bg" hreflang="bg" data-title="Витамин А" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – bosnisk" lang="bs" hreflang="bs" data-title="Vitamin A" data-language-autonym="Bosanski" data-language-local-name="bosnisk" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Vitamina_A" title="Vitamina A – katalansk" lang="ca" hreflang="ca" data-title="Vitamina A" data-language-autonym="Català" data-language-local-name="katalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Vitam%C3%ADn_A" title="Vitamín A – tsjekkisk" lang="cs" hreflang="cs" data-title="Vitamín A" data-language-autonym="Čeština" data-language-local-name="tsjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Fitamin_A" title="Fitamin A – walisisk" lang="cy" hreflang="cy" data-title="Fitamin A" data-language-autonym="Cymraeg" data-language-local-name="walisisk" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – tysk" lang="de" hreflang="de" data-title="Vitamin A" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-dv mw-list-item"><a href="https://dv.wikipedia.org/wiki/%DE%88%DE%A8%DE%93%DE%A6%DE%89%DE%A8%DE%82%DE%B0_%DE%87%DE%AD" title="ވިޓަމިން އޭ – divehi" lang="dv" hreflang="dv" data-title="ވިޓަމިން އޭ" data-language-autonym="ދިވެހިބަސް" data-language-local-name="divehi" class="interlanguage-link-target"><span>ދިވެހިބަސް</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/A-vitamiin" title="A-vitamiin – estisk" lang="et" hreflang="et" data-title="A-vitamiin" data-language-autonym="Eesti" data-language-local-name="estisk" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%92%CE%B9%CF%84%CE%B1%CE%BC%CE%AF%CE%BD%CE%B7_%CE%91" title="Βιταμίνη Α – gresk" lang="el" hreflang="el" data-title="Βιταμίνη Α" data-language-autonym="Ελληνικά" data-language-local-name="gresk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en badge-Q17437798 badge-goodarticle mw-list-item" title="anbefalt artikkel-merke"><a href="https://en.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – engelsk" lang="en" hreflang="en" data-title="Vitamin A" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Vitamina_A" title="Vitamina A – spansk" lang="es" hreflang="es" data-title="Vitamina A" data-language-autonym="Español" data-language-local-name="spansk" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Vitamino_A" title="Vitamino A – esperanto" lang="eo" hreflang="eo" data-title="Vitamino A" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/A_bitamina" title="A bitamina – baskisk" lang="eu" hreflang="eu" data-title="A bitamina" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%88%DB%8C%D8%AA%D8%A7%D9%85%DB%8C%D9%86_%D8%A2" title="ویتامین آ – persisk" lang="fa" hreflang="fa" data-title="ویتامین آ" data-language-autonym="فارسی" data-language-local-name="persisk" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Vitamine_A" title="Vitamine A – fransk" lang="fr" hreflang="fr" data-title="Vitamine A" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Vitamina_A" title="Vitamina A – galisisk" lang="gl" hreflang="gl" data-title="Vitamina A" data-language-autonym="Galego" data-language-local-name="galisisk" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B9%84%ED%83%80%EB%AF%BC_A" title="비타민 A – koreansk" lang="ko" hreflang="ko" data-title="비타민 A" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8E%D5%AB%D5%BF%D5%A1%D5%B4%D5%AB%D5%B6_A" title="Վիտամին A – armensk" lang="hy" hreflang="hy" data-title="Վիտամին A" data-language-autonym="Հայերեն" data-language-local-name="armensk" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B5%E0%A4%BF%E0%A4%9F%E0%A4%BE%E0%A4%AE%E0%A4%BF%E0%A4%A8_%E0%A4%8F" title="विटामिन ए – hindi" lang="hi" hreflang="hi" data-title="विटामिन ए" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr badge-Q17437796 badge-featuredarticle mw-list-item" title="utmerket artikkel-merke"><a href="https://hr.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – kroatisk" lang="hr" hreflang="hr" data-title="Vitamin A" data-language-autonym="Hrvatski" data-language-local-name="kroatisk" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – indonesisk" lang="id" hreflang="id" data-title="Vitamin A" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%95%D7%99%D7%98%D7%9E%D7%99%D7%9F_A" title="ויטמין A – hebraisk" lang="he" hreflang="he" data-title="ויטמין A" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – javanesisk" lang="jv" hreflang="jv" data-title="Vitamin A" data-language-autonym="Jawa" data-language-local-name="javanesisk" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%8E_%E0%B2%9C%E0%B3%80%E0%B2%B5%E0%B2%B8%E0%B2%A4%E0%B3%8D%E0%B2%B5" title="ಎ ಜೀವಸತ್ವ – kannada" lang="kn" hreflang="kn" data-title="ಎ ಜೀವಸತ್ವ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%95%E1%83%98%E1%83%A2%E1%83%90%E1%83%9B%E1%83%98%E1%83%9C%E1%83%98_A" title="ვიტამინი A – georgisk" lang="ka" hreflang="ka" data-title="ვიტამინი A" data-language-autonym="ქართული" data-language-local-name="georgisk" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-rw mw-list-item"><a href="https://rw.wikipedia.org/wiki/Vitamini_A" title="Vitamini A – kinyarwanda" lang="rw" hreflang="rw" data-title="Vitamini A" data-language-autonym="Ikinyarwanda" data-language-local-name="kinyarwanda" class="interlanguage-link-target"><span>Ikinyarwanda</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Vitamini_A" title="Vitamini A – swahili" lang="sw" hreflang="sw" data-title="Vitamini A" data-language-autonym="Kiswahili" data-language-local-name="swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Vitaminum_A" title="Vitaminum A – latin" lang="la" hreflang="la" data-title="Vitaminum A" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/A_vitam%C4%ABns" title="A vitamīns – latvisk" lang="lv" hreflang="lv" data-title="A vitamīns" data-language-autonym="Latviešu" data-language-local-name="latvisk" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Vitaminas_A" title="Vitaminas A – litauisk" lang="lt" hreflang="lt" data-title="Vitaminas A" data-language-autonym="Lietuvių" data-language-local-name="litauisk" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lfn mw-list-item"><a href="https://lfn.wikipedia.org/wiki/Vitamina_A" title="Vitamina A – lingua franca nova" lang="lfn" hreflang="lfn" data-title="Vitamina A" data-language-autonym="Lingua Franca Nova" data-language-local-name="lingua franca nova" class="interlanguage-link-target"><span>Lingua Franca Nova</span></a></li><li class="interlanguage-link interwiki-jbo mw-list-item"><a href="https://jbo.wikipedia.org/wiki/abumoi_mivytcuxu%27i" title="abumoi mivytcuxu'i – lojban" lang="jbo" hreflang="jbo" data-title="abumoi mivytcuxu'i" data-language-autonym="La .lojban." data-language-local-name="lojban" class="interlanguage-link-target"><span>La .lojban.</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/A-vitamin" title="A-vitamin – ungarsk" lang="hu" hreflang="hu" data-title="A-vitamin" data-language-autonym="Magyar" data-language-local-name="ungarsk" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%92%D0%B8%D1%82%D0%B0%D0%BC%D0%B8%D0%BD_%D0%90" title="Витамин А – makedonsk" lang="mk" hreflang="mk" data-title="Витамин А" data-language-autonym="Македонски" data-language-local-name="makedonsk" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%9C%E0%B5%80%E0%B4%B5%E0%B4%95%E0%B4%82_%E0%B4%8E" title="ജീവകം എ – malayalam" lang="ml" hreflang="ml" data-title="ജീവകം എ" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%85-%E0%A4%9C%E0%A5%80%E0%A4%B5%E0%A4%A8%E0%A4%B8%E0%A4%A4%E0%A5%8D%E0%A4%A4%E0%A5%8D%E0%A4%B5" title="अ-जीवनसत्त्व – marathi" lang="mr" hreflang="mr" data-title="अ-जीवनसत्त्व" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%95%E1%83%98%E1%83%A2%E1%83%90%E1%83%9B%E1%83%98%E1%83%9C%E1%83%98_A" title="ვიტამინი A – mingrelsk" lang="xmf" hreflang="xmf" data-title="ვიტამინი A" data-language-autonym="მარგალური" data-language-local-name="mingrelsk" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – malayisk" lang="ms" hreflang="ms" data-title="Vitamin A" data-language-autonym="Bahasa Melayu" data-language-local-name="malayisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%92%D0%B8%D1%82%D0%B0%D0%BC%D0%B8%D0%BD_%D0%90" title="Витамин А – mongolsk" lang="mn" hreflang="mn" data-title="Витамин А" data-language-autonym="Монгол" data-language-local-name="mongolsk" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-nl badge-Q70894304 mw-list-item" title=""><a href="https://nl.wikipedia.org/wiki/Vitamine_A" title="Vitamine A – nederlandsk" lang="nl" hreflang="nl" data-title="Vitamine A" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%AD%E0%A4%BF%E0%A4%9F%E0%A4%BE%E0%A4%AE%E0%A4%BF%E0%A4%A8_%E0%A4%8F" title="भिटामिन ए – nepali" lang="ne" hreflang="ne" data-title="भिटामिन ए" data-language-autonym="नेपाली" data-language-local-name="nepali" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%93%E3%82%BF%E3%83%9F%E3%83%B3A" title="ビタミンA – japansk" lang="ja" hreflang="ja" data-title="ビタミンA" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Vitamina_A" title="Vitamina A – oksitansk" lang="oc" hreflang="oc" data-title="Vitamina A" data-language-autonym="Occitan" data-language-local-name="oksitansk" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%9C%E0%AD%80%E0%AC%AC%E0%AC%B8%E0%AC%BE%E0%AC%B0_%E0%AC%95" title="ଜୀବସାର କ – odia" lang="or" hreflang="or" data-title="ଜୀବସାର କ" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="odia" class="interlanguage-link-target"><span>ଓଡ଼ିଆ</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – usbekisk" lang="uz" hreflang="uz" data-title="Vitamin A" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="usbekisk" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%B5%E0%A8%BF%E0%A8%9F%E0%A8%BE%E0%A8%AE%E0%A8%BF%E0%A8%A8_%E0%A8%8F" title="ਵਿਟਾਮਿਨ ਏ – panjabi" lang="pa" hreflang="pa" data-title="ਵਿਟਾਮਿਨ ਏ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="panjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D9%88%D9%8A%D9%BC%D8%A7%D9%85%D9%8A%D9%86_%D8%A7%DB%90" title="ويټامين اې – pashto" lang="ps" hreflang="ps" data-title="ويټامين اې" data-language-autonym="پښتو" data-language-local-name="pashto" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Witamina_A" title="Witamina A – polsk" lang="pl" hreflang="pl" data-title="Witamina A" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Vitamina_A" title="Vitamina A – portugisisk" lang="pt" hreflang="pt" data-title="Vitamina A" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Vitamina_A" title="Vitamina A – rumensk" lang="ro" hreflang="ro" data-title="Vitamina A" data-language-autonym="Română" data-language-local-name="rumensk" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru badge-Q17437798 badge-goodarticle mw-list-item" title="anbefalt artikkel-merke"><a href="https://ru.wikipedia.org/wiki/%D0%92%D0%B8%D1%82%D0%B0%D0%BC%D0%B8%D0%BD_A" title="Витамин A – russisk" lang="ru" hreflang="ru" data-title="Витамин A" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Vitamina_A" title="Vitamina A – albansk" lang="sq" hreflang="sq" data-title="Vitamina A" data-language-autonym="Shqip" data-language-local-name="albansk" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Vitamina_A" title="Vitamina A – siciliansk" lang="scn" hreflang="scn" data-title="Vitamina A" data-language-autonym="Sicilianu" data-language-local-name="siciliansk" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B7%80%E0%B7%92%E0%B6%A7%E0%B6%B8%E0%B7%92%E0%B6%B1%E0%B7%8A_A" title="විටමින් A – singalesisk" lang="si" hreflang="si" data-title="විටමින් A" data-language-autonym="සිංහල" data-language-local-name="singalesisk" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – enkel engelsk" lang="en-simple" hreflang="en-simple" data-title="Vitamin A" data-language-autonym="Simple English" data-language-local-name="enkel engelsk" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D9%88%D9%BD%D8%A7%D9%85%D9%86_%D8%A7%D9%8A" title="وٽامن اي – sindhi" lang="sd" hreflang="sd" data-title="وٽامن اي" data-language-autonym="سنڌي" data-language-local-name="sindhi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – slovensk" lang="sl" hreflang="sl" data-title="Vitamin A" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DA%A4%DB%8C%D8%AA%D8%A7%D9%85%DB%8C%D9%86_%D8%A6%DB%95%DB%8C" title="ڤیتامین ئەی – sentralkurdisk" lang="ckb" hreflang="ckb" data-title="ڤیتامین ئەی" data-language-autonym="کوردی" data-language-local-name="sentralkurdisk" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%92%D0%B8%D1%82%D0%B0%D0%BC%D0%B8%D0%BD_%D0%90" title="Витамин А – serbisk" lang="sr" hreflang="sr" data-title="Витамин А" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – serbokroatisk" lang="sh" hreflang="sh" data-title="Vitamin A" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatisk" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/A-vitamiini" title="A-vitamiini – finsk" lang="fi" hreflang="fi" data-title="A-vitamiini" data-language-autonym="Suomi" data-language-local-name="finsk" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%89%E0%AE%AF%E0%AE%BF%E0%AE%B0%E0%AF%8D%E0%AE%9A%E0%AF%8D%E0%AE%9A%E0%AE%A4%E0%AF%8D%E0%AE%A4%E0%AF%81_%E0%AE%8F" title="உயிர்ச்சத்து ஏ – tamil" lang="ta" hreflang="ta" data-title="உயிர்ச்சத்து ஏ" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/A_%D0%B2%D0%B8%D1%82%D0%B0%D0%BC%D0%B8%D0%BD%D1%8B" title="A витамины – tatarisk" lang="tt" hreflang="tt" data-title="A витамины" data-language-autonym="Татарча / tatarça" data-language-local-name="tatarisk" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%B5%E0%B0%BF%E0%B0%9F%E0%B0%AE%E0%B0%BF%E0%B0%A8%E0%B1%8D_%E0%B0%8E" title="విటమిన్ ఎ – telugu" lang="te" hreflang="te" data-title="విటమిన్ ఎ" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%A7%E0%B8%B4%E0%B8%95%E0%B8%B2%E0%B8%A1%E0%B8%B4%E0%B8%99%E0%B9%80%E0%B8%AD" title="วิตามินเอ – thai" lang="th" hreflang="th" data-title="วิตามินเอ" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/A_vitamini" title="A vitamini – tyrkisk" lang="tr" hreflang="tr" data-title="A vitamini" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tyv mw-list-item"><a href="https://tyv.wikipedia.org/wiki/%D0%92%D0%B8%D1%82%D0%B0%D0%BC%D0%B8%D0%BD_A" title="Витамин A – tuvinsk" lang="tyv" hreflang="tyv" data-title="Витамин A" data-language-autonym="Тыва дыл" data-language-local-name="tuvinsk" class="interlanguage-link-target"><span>Тыва дыл</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%92%D1%96%D1%82%D0%B0%D0%BC%D1%96%D0%BD_A" title="Вітамін A – ukrainsk" lang="uk" hreflang="uk" data-title="Вітамін A" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%AD%DB%8C%D8%A7%D8%AA%DB%8C%D9%86_%D8%A7%D9%84%D9%81" title="حیاتین الف – urdu" lang="ur" hreflang="ur" data-title="حیاتین الف" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-ug mw-list-item"><a href="https://ug.wikipedia.org/wiki/%DB%8B%D9%89%D8%AA%D8%A7%D9%85%D9%89%D9%86_A" title="ۋىتامىن A – uigurisk" lang="ug" hreflang="ug" data-title="ۋىتامىن A" data-language-autonym="ئۇيغۇرچە / Uyghurche" data-language-local-name="uigurisk" class="interlanguage-link-target"><span>ئۇيغۇرچە / Uyghurche</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Vitamin_A" title="Vitamin A – vietnamesisk" lang="vi" hreflang="vi" data-title="Vitamin A" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://wa.wikipedia.org/wiki/Vitamene_A" title="Vitamene A – vallonsk" lang="wa" hreflang="wa" data-title="Vitamene A" data-language-autonym="Walon" data-language-local-name="vallonsk" class="interlanguage-link-target"><span>Walon</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Bitamina_A" title="Bitamina A – waray-waray" lang="war" hreflang="war" data-title="Bitamina A" data-language-autonym="Winaray" data-language-local-name="waray-waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%BB%B4%E7%94%9F%E7%B4%A0A" title="维生素A – wu" lang="wuu" hreflang="wuu" data-title="维生素A" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%B6%AD%E4%BB%96%E5%91%BDA" title="維他命A – kantonesisk" lang="yue" hreflang="yue" data-title="維他命A" data-language-autonym="粵語" data-language-local-name="kantonesisk" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%B6%AD%E7%94%9F%E7%B4%A0A" title="維生素A – kinesisk" lang="zh" hreflang="zh" data-title="維生素A" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a 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id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Utseende"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Utseende</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">skjul</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Fra Wikipedia, den frie encyklopedi</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nb" dir="ltr"><p><b>Vitamin A</b> kalles ofte «øyets vitamin» og er et <a href="/wiki/Fett" title="Fett">fettløselig</a> vitamin. Vitamin A fungerer i kroppen som en viktig <a href="/wiki/Antioksidant" title="Antioksidant">antioksidant</a> og er spesielt viktig for kroppens forsvar mot <a href="/wiki/Virus" title="Virus">virus</a> (forkjølelse og influensa). Ettersom vitamin A er fettløselig må man være forsiktig med å innta for mye av vitaminet. Dette i kontrast til vannløselige vitaminer slik som <a href="/wiki/Vitamin_C" title="Vitamin C">vitamin C</a>. Vitamin A lagres i kroppens <a href="/wiki/Fettvev" title="Fettvev">fettvev</a> og et friskt menneske kan ha lagre som varer i mange år. Av denne grunn kan man i korte perioder klare seg med et lavt inntak av vitamin A. Vitamin A ble først framstilt syntetisk i <a href="/wiki/1947" title="1947">1947</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Egenskaper">Egenskaper</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vitamin_A&veaction=edit&section=1" title="Rediger avsnitt: Egenskaper" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vitamin_A&action=edit&section=1" title="Rediger kildekoden til seksjonen Egenskaper"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Vitamin A er nødvendig for: </p> <ul><li>Godt <a href="/wiki/Syn" title="Syn">syn</a></li> <li>Normal vekst og bendannelse</li> <li>Glatt hud og slimhinner</li> <li><a href="/w/index.php?title=Hormondannelse&action=edit&redlink=1" class="new" title="Hormondannelse (ikke skrevet ennå)">Hormondannelse</a></li> <li>Motstandskraft mot <a href="/wiki/Infeksjoner" class="mw-redirect" title="Infeksjoner">infeksjoner</a> og <a href="/wiki/Kreft" title="Kreft">kreft</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Tegn_på_mangel"><span id="Tegn_p.C3.A5_mangel"></span>Tegn på mangel</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vitamin_A&veaction=edit&section=2" title="Rediger avsnitt: Tegn på mangel" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vitamin_A&action=edit&section=2" title="Rediger kildekoden til seksjonen Tegn på mangel"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Dårlig nattesyn kan være et tegn på vitamin A-mangel. Hyppige virusinfeksjoner slik som <a href="/wiki/Forkj%C3%B8lelse" title="Forkjølelse">forkjølelse</a>, <a href="/wiki/Influensa" title="Influensa">influensa</a> og <a href="/wiki/Herpes" class="mw-redirect" title="Herpes">herpes</a> er et annet tegn på lave nivåer av vitamin A. Ved langvarig mangel blir <a href="/w/index.php?title=Slimhinnene&action=edit&redlink=1" class="new" title="Slimhinnene (ikke skrevet ennå)">slimhinnene</a> i hals, svelg og nesebor tørre, og en blir mer utsatt for <a href="/wiki/Infeksjoner" class="mw-redirect" title="Infeksjoner">infeksjoner</a>. Øyets <a href="/w/index.php?title=Slimhinner&action=edit&redlink=1" class="new" title="Slimhinner (ikke skrevet ennå)">slimhinner</a> blir også lett skadet, og vitamin A-mangel er i dag en vanlig årsak til blindhet i U-land. </p> <div class="mw-heading mw-heading2"><h2 id="Tegn_på_for_mye_A-vitamin"><span id="Tegn_p.C3.A5_for_mye_A-vitamin"></span>Tegn på for mye A-vitamin</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vitamin_A&veaction=edit&section=3" title="Rediger avsnitt: Tegn på for mye A-vitamin" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vitamin_A&action=edit&section=3" title="Rediger kildekoden til seksjonen Tegn på for mye A-vitamin"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Slapphet, hodepine, oppkast og hudavskalling er de første symptomene på overskudd. Større inntak kan bl.a. føre til leverskader, tørr hud, hårtap, beinskjørhet, skader i <a href="/wiki/Sentralnervesystemet" title="Sentralnervesystemet">sentralnervesystemet</a>. Og i verste fall kan det føre til døden. Den sveitsiske polfareren <a href="/wiki/Xavier_Mertz" title="Xavier Mertz">Xavier Mertz</a> skal være den første som har omkommet av for høyt inntak av vitamin-A. </p> <div class="mw-heading mw-heading2"><h2 id="Retinol">Retinol</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vitamin_A&veaction=edit&section=4" title="Rediger avsnitt: Retinol" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vitamin_A&action=edit&section=4" title="Rediger kildekoden til seksjonen Retinol"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Retinol er et annet navn på vitamin A, og det finnes bare i fettholdige matvarer fra <a href="/wiki/Dyreriket" class="mw-redirect" title="Dyreriket">dyreriket</a>. <a href="/wiki/Retinol" class="mw-redirect" title="Retinol">Retinol</a> får vi fra <a href="/wiki/Tran" title="Tran">tran</a>, <a href="/wiki/Lever" title="Lever">lever</a>, <a href="/wiki/Helmelk" title="Helmelk">helmelk</a>, <a href="/wiki/Fl%C3%B8te" title="Fløte">fløte</a>, <a href="/wiki/Ost" title="Ost">ost</a>, fet <a href="/wiki/Fisk" title="Fisk">fisk</a> og <a href="/wiki/Sm%C3%B8r" title="Smør">smør</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Karoten">Karoten</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vitamin_A&veaction=edit&section=5" title="Rediger avsnitt: Karoten" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vitamin_A&action=edit&section=5" title="Rediger kildekoden til seksjonen Karoten"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>De fleste typer grønnsaker, frukt og <a href="/wiki/B%C3%A6r" title="Bær">bær</a> inneholder <a href="/wiki/Karoten" title="Karoten">karoten</a>, som ved behov blir omdannet til <a href="/wiki/Retinol" class="mw-redirect" title="Retinol">retinol</a> i kroppen. Spesielt mye <a href="/wiki/Karoten" title="Karoten">karoten</a> er det i sorter med rødgul og mørkegrønn farge (<a href="/wiki/Gulrot" title="Gulrot">gulrot</a>, <a href="/wiki/Spinat" title="Spinat">spinat</a>, <a href="/wiki/Brokkoli" title="Brokkoli">brokkoli</a>, <a href="/wiki/Hagesalat" title="Hagesalat">salat</a> og <a href="/wiki/Paprika" class="mw-disambig" title="Paprika">paprika</a>). Røykere bør være forsiktig med inntak av betakaroten i større mengder (<a href="/wiki/Kosttilskudd" title="Kosttilskudd">kosttilskudd</a>), da det kan være en viss sammenheng mellom røyking og betakaroten som kan virke stimulerende på utvikling av lungekreft. Men dette kom fram i en undersøkelse for å se om betakaroten kunne ha en hemmende effekt på kreftutvikling, og undersøkelsen ble avbrutt da det var grunn til å frykte den motsatte effekten.<sup id="cite_ref-fn1_1-0" class="reference"><a href="#cite_note-fn1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Gode_kilder">Gode kilder</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vitamin_A&veaction=edit&section=6" title="Rediger avsnitt: Gode kilder" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vitamin_A&action=edit&section=6" title="Rediger kildekoden til seksjonen Gode kilder"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Kilder_til_retinol">Kilder til retinol</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vitamin_A&veaction=edit&section=7" title="Rediger avsnitt: Kilder til retinol" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vitamin_A&action=edit&section=7" title="Rediger kildekoden til seksjonen Kilder til retinol"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Lever" title="Lever">Lever</a></li> <li><a href="/wiki/Leverpostei" title="Leverpostei">Leverpostei</a></li> <li><a href="/wiki/Eggeplomme" title="Eggeplomme">Eggeplomme</a></li> <li><a href="/wiki/Cheddarost" title="Cheddarost">Cheddarost</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="Kilder_til_betakaroten_og_andre_karotener">Kilder til betakaroten og andre karotener</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vitamin_A&veaction=edit&section=8" title="Rediger avsnitt: Kilder til betakaroten og andre karotener" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vitamin_A&action=edit&section=8" title="Rediger kildekoden til seksjonen Kilder til betakaroten og andre karotener"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Gulrot" title="Gulrot">Gulrøtter</a></li> <li><a href="/wiki/S%C3%B8tpotet" title="Søtpotet">Søtpotet</a></li> <li><a href="/wiki/Gresskar" title="Gresskar">Gresskar</a></li> <li><a href="/wiki/Brokkoli" title="Brokkoli">Brokkoli</a></li> <li><a href="/wiki/Aprikos" title="Aprikos">Aprikoser</a></li> <li><a href="/wiki/Spinat" title="Spinat">Spinat</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Anbefalt_dose">Anbefalt dose</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vitamin_A&veaction=edit&section=9" title="Rediger avsnitt: Anbefalt dose" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vitamin_A&action=edit&section=9" title="Rediger kildekoden til seksjonen Anbefalt dose"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Anbefalt dosering av vitamin A er 0,8 til 1 <a href="/wiki/Mg" class="mw-redirect mw-disambig" title="Mg">mg</a> daglig. En <a href="/wiki/Barneskje" class="mw-disambig" title="Barneskje">barneskje</a> <a href="/wiki/Tran" title="Tran">tran</a> daglig, gir ca. 0,25 mg. Tradisjonelt norsk <a href="/wiki/Kosthold" class="mw-redirect" title="Kosthold">kosthold</a> gir rikelig med vitamin A. </p><p>Anbefalt døgndose <a href="/wiki/Tran" title="Tran">tran</a>: 5 ml <a href="/wiki/Tran" title="Tran">tran</a>. Inneholder 0,25 mg vitamin A.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Referanser">Referanser</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Vitamin_A&veaction=edit&section=10" title="Rediger avsnitt: Referanser" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Vitamin_A&action=edit&section=10" title="Rediger kildekoden til seksjonen Referanser"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-fn1-1"><b><a href="#cite_ref-fn1_1-0">^</a></b> <span class="reference-text"><cite class="citation journal">Omenn GS, Goodman GE, Thornquist MD; m.fl. (1996). «Effects of a combination of beta carotene and vitamin A on lung cancer and cardiovascular disease». <i>N Engl J Med</i>. 334 (18): 1150–5. <a href="/wiki/PubMed_Identifier" class="mw-redirect" title="PubMed Identifier">PMID</a> <a rel="nofollow" class="external text" href="//www.ncbi.nlm.nih.gov/pubmed/8602180">8602180</a>. <a href="/wiki/Digital_objektidentifikator" title="Digital objektidentifikator">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1056%2FNEJM199605023341802">10.1056/NEJM199605023341802</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fno.wikipedia.org%3AVitamin+A&rft.atitle=Effects+of+a+combination+of+beta+carotene+and+vitamin+A+on+lung+cancer+and+cardiovascular+disease&rft.au=Omenn+GS%2C+Goodman+GE%2C+Thornquist+MD&rft.date=1996&rft.genre=article&rft.issue=18&rft.jtitle=N+Engl+J+Med.&rft.pages=1150-5&rft.volume=334&rft_id=info%3Adoi%2F10.1056%2FNEJM199605023341802&rft_id=info%3Apmid%2F8602180&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span><span class="citation-comment" style="display:none; color:#33aa33; margin-left:0.3em">CS1-vedlikehold: Flere navn: forfatterliste (<a href="/wiki/Kategori:CS1-vedlikehold:_Flere_navn:_forfatterliste" title="Kategori:CS1-vedlikehold: Flere navn: forfatterliste">link</a>)</span></span> </li> <li id="cite_note-2"><b><a href="#cite_ref-2">^</a></b> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://www.mollers.no/produkt/mollers-tran/">«Möller's Tran - Naturlig Omega 3 - Møllers.no»</a>. <i>Møllers</i><span class="reference-accessdate">. Besøkt 15. juli 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fno.wikipedia.org%3AVitamin+A&rft.atitle=M%C3%B6ller%27s+Tran+-+Naturlig+Omega+3+-+M%C3%B8llers.no&rft.genre=unknown&rft.jtitle=M%C3%B8llers&rft_id=https%3A%2F%2Fwww.mollers.no%2Fprodukt%2Fmollers-tran%2F&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> </ol></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r23230704">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output 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aria-labelledby="Vitaminer" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r23230704"><style data-mw-deduplicate="TemplateStyles:r24561741">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini 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B">Liste over alle B-vitaminer</a></li> <li><a href="/wiki/Vitamin_D" title="Vitamin D">Liste over alle D-vitaminer</a></li></ul> </div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0em 0.25em"> <ul><li><a class="mw-selflink selflink">Vitamin A</a></li> <li><a href="/wiki/Vitamin_B" title="Vitamin B">Vitamin B</a> <ul><li><a href="/wiki/Tiamin" title="Tiamin">1</a></li> <li><a href="/wiki/Riboflavin" title="Riboflavin">2</a></li> <li><a href="/wiki/Niacin" title="Niacin">3</a></li> <li><a href="/wiki/Pantotensyre" title="Pantotensyre">5</a></li> <li><a href="/wiki/Pyridoksin" title="Pyridoksin">6</a></li> <li><a href="/wiki/Biotin" title="Biotin">7</a></li> <li><a href="/wiki/Folat" title="Folat">9</a></li> <li><a href="/wiki/Kobalamin" title="Kobalamin">12</a></li></ul></li> <li><a href="/wiki/Vitamin_C" title="Vitamin C">Vitamin C</a></li> <li><a href="/wiki/Vitamin_D" title="Vitamin D">Vitamin D</a> <ul><li><a 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