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Vitamins and Minerals: How Much Should You Take?
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.success-reg.overlay h2 span{font-weight:700}.newsletter-wrapper .success-reg.overlay p{border-bottom:none;color:#000;margin-top:.5rem;padding:0 .5rem .5rem}.newsletter-wrapper .err-reg.overlay .error-content{width:100%}.right .webmd-checkbox__label{margin-right:2rem}}@media only screen and (min-width:48rem){.ia-nl{min-width:46.875rem;padding-left:0}.ia-nl .newsletter-main{background-color:#edf0ff;border-radius:.25rem;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;margin:1.25rem 0 1.875rem 0;min-height:0;min-width:25rem;padding:2.125rem;width:46.875rem}.ia-nl .newsletter-main .header-container{-webkit-box-align:center;-ms-flex-align:center;align-items:center;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:reverse;-ms-flex-direction:row-reverse;flex-direction:row-reverse;margin-bottom:1.25rem}.ia-nl .newsletter-main .header-container .nl-header-container h3{color:#1b1b1b;font-size:1.25rem;font-weight:700;line-height:1.4;margin-bottom:12px;margin-top:0}.ia-nl .newsletter-main .header-container .nl-header-container h4{display:block!important;font-family:Source Sans Pro,Arial,sans-serif;font-size:1.125rem;font-weight:400;line-height:1.6;margin:0}.ia-nl .newsletter-main .header-container .image-container{display:block;height:8rem;overflow:inherit;width:65%}.ia-nl .newsletter-main .header-container .image-container img{border-radius:4px;border-style:none;float:right;height:8rem}.ia-nl .newsletter-main .header-container .success-reg{margin-right:1.125rem;text-align:start}.ia-nl .newsletter-main .header-container .success-reg h2{color:#1b1b1b;font-family:Source Sans Pro,Arial,sans-serif;font-size:1.25rem;font-weight:700;line-height:1.4;margin:0}.ia-nl .newsletter-main .header-container .success-reg p{border-bottom:0;color:#1b1b1b;font-family:Source Sans 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.webmd-checkbox{-webkit-box-align:center;-ms-flex-align:center;align-items:center;color:#1b1b1b;display:-webkit-box;display:-ms-flexbox;display:flex;font-size:.875rem;line-height:1.4;letter-spacing:.7px;margin-left:0!important;padding:0!important}.ia-nl .newsletter-main .content-container .series-select .webmd-checkbox__input{height:1.125rem}.ia-nl .newsletter-main .content-container .series-select .webmd-checkbox:hover{background:transparent}.ia-nl .newsletter-main .content-container .series-select .webmd-checkbox .webmd-checkbox__inner{border:2px solid #3557ff;height:1.1375rem;width:1.125rem;border-radius:.3125rem}.ia-nl .newsletter-main .content-container .series-select .webmd-checkbox.is-checked .webmd-checkbox__inner{background:url(data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOSIgaGVpZ2h0PSI3IiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxwYXRoIGQ9Im0xLjM4NCAzLjExNSAyLjI1IDIuMDE5IDMuNzUtNC4wMzgiIHN0cm9rZT0iIzM1NTdGRiIgc3Ryb2tlLXdpZHRoPSIyIiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiLz48L3N2Zz4=) no-repeat;background-position:50%;background-size:.5625rem}.ia-nl .newsletter-main .content-container .email-container .email-input{margin-right:0;width:100%!important}.ia-nl .newsletter-main .content-container .email-container .email-input .webmd-input__inner{border:1px solid #cccce7;border-radius:5px 0 0 5px;color:#1b1b1b;font-size:.875rem;height:45px;letter-spacing:.14px;padding:0 .75rem 0 .75rem}.ia-nl .newsletter-main .content-container .email-container button{border-radius:0 5px 5px 0;font-size:18px;font-weight:600;height:45px;line-height:1.6;padding:0 .25rem;width:25.6%}.ia-nl .newsletter-main .content-container .email-container .webmd-button--primary{background-color:#3557ff}.ia-nl .newsletter-main .content-container .email-container .webmd-button--primary:disabled{background-color:#b3b3b3;color:#676767}.ia-nl .newsletter-main .content-container .nl-disclaimer{color:#1b1b1b;font-family:Source Sans Pro,Arial,sans-serif;font-size:.75rem;line-height:1.4;padding-bottom:0}.ia-nl .newsletter-main .content-container .nl-disclaimer a{color:#3557ff}}@media only screen and (min-width:48rem)and (max-width:51.1875rem){.ia-nl{min-width:44.5rem}.ia-nl .newsletter-main{width:44.5rem}}.footer-nl-social .nl-header-container h4{display:block!important;color:#fff;font-family:Source Sans Pro,Arial,sans-serif;font-size:1.125rem;font-style:normal;font-weight:400;line-height:1.1111rem}.footer-nl-social .content-container .series-select{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:start;-ms-flex-align:start;align-items:flex-start}@media only screen and (max-width:47.875rem){.footer-nl-social 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.webmd-checkbox{-webkit-box-align:center;-ms-flex-align:center;align-items:center;color:#1b1b1b;display:-webkit-box;display:-ms-flexbox;display:flex;margin-left:0!important;padding:0!important}.nlhov-content-container .series-select .webmd-checkbox__input{height:1.125rem}.nlhov-content-container .series-select .webmd-checkbox:hover{background:transparent}.nlhov-content-container .series-select .webmd-checkbox .webmd-checkbox__inner{border:2px solid #3557ff;height:1.1375rem;width:1.125rem;border-radius:5px}.nlhov-content-container .series-select .webmd-checkbox.is-checked .webmd-checkbox__inner{background:url(data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOSIgaGVpZ2h0PSI3IiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxwYXRoIGQ9Im0xLjM4NCAzLjExNSAyLjI1IDIuMDE5IDMuNzUtNC4wMzgiIHN0cm9rZT0iIzM1NTdGRiIgc3Ryb2tlLXdpZHRoPSIyIiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiLz48L3N2Zz4=) no-repeat;background-position:50%;background-size:.5625rem}@media only screen and (max-width:47.938em){.nlhov-content-container .series-select{display:block;margin-bottom:0}.nlhov-content-container .series-select .webmd-checkbox{padding-bottom:10px!important}}.footer-nl-social .success-reg h2{font-weight:600;line-height:50px;text-align:left}@media(max-width:47.938rem){.footer-nl-social .success-reg h2{text-align:center}}.footer-nl-social .success-reg .see-more-container{-webkit-box-align:self-start;-ms-flex-align:self-start;align-items:self-start;-webkit-box-pack:left;-ms-flex-pack:left;justify-content:left}@media(max-width:47.938rem){.footer-nl-social .success-reg .see-more-container{-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}}.footer-nl-social .success-reg .sub-title-text{color:#fff;line-height:20px}@media(max-width:47.938rem){.footer-nl-social .success-reg .sub-title-text{-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}}.in-art-ty h2,.right-cont h2{color:#1b1b1b;font-size:1.375rem;font-weight:700;line-height:30.8px;margin-bottom:.75rem}@media(max-width:64rem){.in-art-ty h2,.right-cont h2{font-size:2rem;line-height:42px;margin-bottom:1rem}}@media(max-width:47.938rem){.in-art-ty h2,.right-cont h2{font-size:1.5rem;line-height:33.6px;margin-bottom:.25rem}}.in-art-ty .see-more-container,.right-cont .see-more-container{-webkit-box-align:left;-ms-flex-align:left;align-items:left;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:left;-ms-flex-pack:left;justify-content:left;margin-top:1rem}@media(max-width:64rem){.in-art-ty .see-more-container,.right-cont .see-more-container{margin-bottom:.75rem}}@media(max-width:47.938rem){.in-art-ty .see-more-container,.right-cont .see-more-container{-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}}.in-art-ty .see-more-container .see-more-btn,.right-cont .see-more-container .see-more-btn{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:#3557ff;border-radius:4px;color:#fff;cursor:pointer;display:-webkit-box;display:-ms-flexbox;display:flex;font-size:1.125rem;font-weight:600;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;line-height:28.8px;min-width:150px;padding:8px 16px;text-decoration:none}.in-art-ty .sub-title-text,.right-cont .sub-title-text{font-size:1.125rem;line-height:28.8px}.vn-scrim:before{background:hsla(0,0%,100%,.8);content:"";height:100%;left:0;opacity:0;position:fixed;top:0;width:100%;visibility:hidden;z-index:100000;-webkit-transition:all .4s ease;transition:all .4s ease}@media(min-width:64.0625rem){.vn-scrim:before{-webkit-transition-delay:.2s;transition-delay:.2s}}.vn-scrim.vn-open:before{opacity:1;visibility:visible;-webkit-transition-delay:0s;transition-delay:0s}@media(min-width:64.0625rem){.vn-scrim.vn-open:before :not(.lite){visibility:hidden}}html body{margin-top:3rem;padding-top:0;-webkit-font-smoothing:antialiased}@media(max-width:37.5rem){html body main{margin-top:1rem}}@media(min-width:64.0625rem){html body{margin-top:0}}html.class-bg-ghost{background:#f8f8f8}.vn-typeahead-suggestions{background:#fff;border-radius:5px;-webkit-box-shadow:none;box-shadow:none;left:0!important;margin:0 8px!important;height:24.875rem;overflow:hidden;top:6.875rem!important;width:calc(100% - 1rem)}.vn-typeahead-suggestions .webmd-autocomplete-suggestion__wrap{border:0;border-radius:0}@media(min-width:64.0625rem){.vn-typeahead-suggestions.lite{top:8.625rem!important}}@media(min-width:37.5rem){.vn-typeahead-suggestions{max-width:calc(400px - 1rem)!important}}.webmd-autocomplete-suggestion{z-index:1000000!important}.vn-skip-to-main{background:#fff;border-radius:0 0 5px 5px;color:#1b1b1b;display:block;height:1.875rem;padding:.3rem;margin:0 .5rem;position:fixed;text-decoration:none;top:-100px;-webkit-transition:top .3s ease;transition:top .3s ease;z-index:100001}.vn-skip-to-main:focus{top:0}.vn-wrapper{background:#00157c;-webkit-box-sizing:border-box;box-sizing:border-box;font-family:Source Sans Pro,Arial,sans-serif;position:fixed;top:0;-webkit-transition:transform .5s ease;transition:transform .5s ease;width:100%;z-index:100000}@media(min-width:64.0625rem){.vn-wrapper.lite{padding:0 1.5rem}}.vn-wrapper.no-stick{position:relative}.vn-wrapper *{-webkit-box-sizing:border-box;box-sizing:border-box;font-family:Source Sans Pro,Arial,sans-serif;letter-spacing:normal}.vn-wrapper.vn-slide-up{-webkit-transform:translateY(-100%);transform:translateY(-100%)}@media(min-width:64.0625rem){.vn-wrapper{position:relative}}@media(max-width:81.25rem){.vn-wrapper{padding:0 1rem}}.vn-wrapper .vn-dt{display:none!important}@media(min-width:64.0625rem){.vn-wrapper .vn-dt{display:block!important}}.vn-wrapper .vn-mt{display:block}@media(min-width:64.0625rem){.vn-wrapper .vn-mt{display:none!important}}.vn-wrapper .vn-hidden{visibility:hidden!important}.vn-wrapper .vn-trans{opacity:0}.vn-wrapper .vn-none{display:none!important}@media(min-width:64.0625rem){.vn-wrapper .vn-none{display:none!important}}.vn-wrapper .vn-container{-webkit-box-align:center;-ms-flex-align:center;align-items:center;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;height:3rem;margin:0 auto;max-width:77.5rem;z-index:1}@media(min-width:64.0625rem){.vn-wrapper .vn-container{height:4.6875rem}}.vn-wrapper .vn-container.lite{max-width:100%}@media(min-width:64.0625rem){.vn-wrapper .vn-container.lite{height:3.5rem}}.vn-wrapper .vn-menu-btn{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:none;border:0;color:#fff;cursor:pointer;display:-webkit-box;display:-ms-flexbox;display:flex;height:100%;line-height:1;padding:0}.vn-wrapper .vn-menu-btn:not(.lite){margin-right:1.166875rem}@media(min-width:64.0625rem){.vn-wrapper .vn-menu-btn:not(.lite){margin-right:0}}.vn-wrapper .vn-menu-btn i{font-size:2.25rem;width:2.25rem;overflow:hidden}.vn-wrapper .vn-menu-btn svg{fill:currentColor;pointer-events:none}.vn-wrapper .vn-menu-btn.vn-search i{font-size:1.875rem;width:1.875rem}.vn-wrapper .vn-menu-btn.vn-search:not(.lite){margin-right:0}@media(min-width:64.0625rem){.vn-wrapper .vn-menu-btn.vn-search:not(.lite) i{font-size:1.625rem;width:1.625rem}}.vn-wrapper .vn-menu-btn.vn-search.lite i{font-size:2rem;width:2rem}.vn-wrapper .vn-logo-container{-webkit-box-align:center;-ms-flex-align:center;align-items:center;display:-webkit-box;display:-ms-flexbox;display:flex}.vn-wrapper .vn-logo-container .vn-logo-div{height:.9375rem;margin:0 .625rem}@media(min-width:64.0625rem){.vn-wrapper .vn-logo-container .vn-logo-div{height:1.5625rem;margin:0 1.25rem}}.vn-wrapper .vn-logo-container .vn-logo,.vn-wrapper .vn-logo-container .vn-prog-logo{line-height:1}.vn-wrapper .vn-logo-container .vn-logo img,.vn-wrapper .vn-logo-container .vn-prog-logo img{display:block;height:1.3125rem}@media(min-width:64.0625rem){.vn-wrapper .vn-logo-container .vn-logo img,.vn-wrapper .vn-logo-container .vn-prog-logo img{height:1.625rem}.vn-wrapper .vn-logo-container .vn-logo img:not(.lite){width:7.25rem}}.vn-wrapper .vn-logo-container.with-program .vn-logo img{height:.875rem}@media(min-width:64.0625rem){.vn-wrapper .vn-logo-container.with-program .vn-logo img{height:1.4375rem}}.vn-wrapper .vn-logo-container.with-program .vn-prog-logo img{height:.9375rem}@media(min-width:64.0625rem){.vn-wrapper .vn-logo-container.with-program .vn-prog-logo img{height:1.5625rem}}.vn-wrapper .vn-links{background:#f9f9fc;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;height:calc(100vh - 3rem);left:-140vw;overflow:auto;padding:.5rem;position:fixed;top:3rem;-webkit-transition:left .5s ease;transition:left .5s ease;width:100%;z-index:100}@media(min-width:37.5rem){.vn-wrapper .vn-links{max-width:25rem}}@media(min-width:64.0625rem){.vn-wrapper .vn-links.lite{height:calc(100vh - 3.5rem);top:3.5rem}.vn-wrapper .vn-links:not(.lite){background:none;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row;height:100%;left:0;max-width:100%;overflow:visible;padding:0;position:relative;top:0}}.vn-wrapper .vn-links.open{left:0}.vn-wrapper .vn-links.open.vn-slide-out{left:-100vw}@media(min-width:37.5rem){.vn-wrapper .vn-links.open.vn-slide-out{left:0}}.vn-wrapper .vn-links .vn-search-wrapper{display:-webkit-box;display:-ms-flexbox;display:flex;height:3rem;margin-bottom:.25rem;-webkit-box-ordinal-group:0;-ms-flex-order:-1;order:-1}@media(min-width:64.0625rem){.vn-wrapper .vn-links .vn-search-wrapper:not(.lite){background:#fff;border:1px solid #c6cedb;border-radius:5px;opacity:0;-webkit-box-ordinal-group:2;-ms-flex-order:1;order:1;position:absolute;right:2.8125rem;top:.8125rem;width:38%;-webkit-transition:all .3s ease;transition:all .3s ease;visibility:hidden}.vn-wrapper .vn-links .vn-search-wrapper:not(.lite).vn-open{visibility:visible;opacity:1}.vn-wrapper .vn-links .vn-search-wrapper:not(.lite) input{border:0;height:2.8125rem}}.vn-wrapper .vn-links .vn-search-wrapper>div{-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1}.vn-wrapper .vn-links .vn-search-wrapper>div>div{width:100%}.vn-wrapper .vn-links .vn-search-wrapper input{border:1px solid #cccce7;border-right:0;border-radius:5px 0 0 5px;-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1;font-size:1.125rem;height:3rem;padding:0 1.375rem}.vn-wrapper .vn-links .vn-search-wrapper input::-webkit-input-placeholder{color:#7f888f}.vn-wrapper .vn-links .vn-search-wrapper input::-moz-placeholder{color:#7f888f}.vn-wrapper .vn-links .vn-search-wrapper 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style="" span="24" id="ContentPane10" tabindex="-1"><div class="ad-wrapper ad-container-101"><span></span></div></div></div><main id="global-main" role="main" tabindex="-1" data-js="global-main" class="resp-2-col-rr"><div class="webmd-row" style="" span="24"><div class="webmd-col webmd-col-24 webmd-col-xs-24 webmd-col-sm-24 webmd-col-md-17 webmd-col-lg-13 webmd-col-xl-13 main-container main-container-2" style="" id="main-container" tabindex="-1" data-js="main-container-2"><div class="webmd-row pane" style="" id="ContentPane29" tabindex="-1"><div data-chronicle="091e9c5e81394036" data-e2e="brdcrmb" data-module-type="link-list"><ul class="webmd-breadcrumb breadcrumb" aria-label="Breadcrumb" data-metrics-module="brdcrmb"><!--[--><!----><!--[--><li class="webmd-breadcrumb__item"><span class="webmd-breadcrumb__inner" role><!--[--><a href="https://www.webmd.com/vitamins-and-supplements/medical-reference/default.htm" data-metrics-link="1">Reference</a><!--]--></span><i class="webmd-breadcrumb__separator"></i></li><!--]--><!--]--></ul><script type="application/ld+json"></script></div><!----></div><div class="webmd-row pane" style="" id="ContentPane30" tabindex="-1"><article class="article medref" data-chronicle="091e9c5e81e48710" data-e2e="dart-medref" data-page="1" data-module-type="dynamic-article" data-artid="091e9c5e80222282" style=""><script type="application/ld+json"></script><script type="application/ld+json"></script><div class="inner-article-container"><!--[--><!----><!----><header><!----><!----><h1>Vitamins and Minerals: How Much Should You Take?</h1><!----><!----><!----></header><div class="med-wrap"><div><div class="asset-med-rev"><div class="reviewer-info" data-chronicle="091e9c5e81e48710" data-e2e="asset-medical-review" data-metrics-module="rvdby-lnk"><span class="reviewer-photo-cont"><figure><img src="https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/articles/biographies/dersarkissian_carol_382x382.jpg?resize=51px:51px&output-quality=75" class="reviewer-photo"></figure></span><span class="seperatorLine reviewer-txt">Medically Reviewed by <a class="person" href="https://www.webmd.com/bio/carol-dersarkissian" data-metrics-link="0">Carol DerSarkissian, MD</a><!----><span class="no-link"></span><span class="revDate"> on September 25, 2024</span></span></div><div class="byline"><span><span class="authors">Written by <a href="https://www.webmd.com/webmd-editorial-contributors" class="person" data-metrics-module="wrtnbyedit-lnk">WebMD Editorial Contributors</a></span></span></div></div></div></div><aside class="oncology-article-nav" data-metrics-module="cwnav-art"><ul class="nav-items desktop"><!--[--><li><a href="#091e9c5e80222282-1-2">What the Numbers Mean</a><!----></li><li><a href="#091e9c5e80222282-1-4">How Much Is Too Much?</a><!----></li><li><a href="#091e9c5e80222282-3-7">Table: RDAs and ULs for Vitamins and Minerals</a><!----></li><!--]--><!----></ul></aside><!--]--><div class="reading-wrapper"><div class="readtime"><span>6 min read</span></div><!----><div id="audio-placeholder-091e9c5e80222282"></div></div><!----><!----><!----><div class="article__body" data-metrics-module="embd-lnk"><div class="article-page active-page" data-page="1"><section><p>You stroll down the pharmacy aisles on what seems like a simple mission: pick up some vitamins. But a quick glance at a bottle's label can send you running for a dictionary. Things like "RDA" or "DV" are just a few examples of an alphabet soup that's on many packages. But don't despair. We'll help you demystify supplement guidelines.</p></section><section><h2 class="jumplink-headers" id="091e9c5e80222282-1-2">What the Numbers Mean</h2><p>Many of the terms you see on labels or supplement websites can help you understand how much of the vitamin or mineral you should take. For example, here are some guidelines set up by the Institute of Medicine:</p><p>The <strong>RDA (Recommended Dietary Allowance)</strong> and the <strong>AI (Adequate Intake) </strong>are the amounts of a vitamin or mineral you need to keep healthy and stay well-nourished. They're tailored to women, men, and specific age groups.</p><p>The <strong>UL (Tolerable Upper Intake Level)</strong> is the maximum amount of daily vitamins and minerals that you can safely take without risk of an overdose or serious side effects. For certain nutrients, the higher you go above the UL, the greater the chance you'll have problems.</p></section><section> <p>Separate from the RDA and the UL, the Food and Drug Administration uses a different measure for the nutrients you need:</p><p>The <strong>DV (Daily Value)</strong> is the only measurement you'll find on food and supplement labels. That's because space is limited, and there's a need for one single reference number. That number is the amount of a vitamin or nutrient that you should get for top health from a diet of 2,000 calories a day. The DV is sometimes the same as the RDA.</p><p>Although the details may be different, remember that the RDA and DV are both set up to help you get the nutrients you need to prevent disease and avoid problems caused by lack of nutrition.</p></section><section><h2 class="jumplink-headers" id="091e9c5e80222282-1-4">How Much Is Too Much?</h2><p>Because high doses of some supplements can have risks, how do you know when it's OK to take more than the RDA or DV?</p><p>One way is to look for the UL (tolerable upper intake level) of a nutrient. With many <a href="https://www.webmd.com/diet/vitamin-supplement-glossary" data-crosslink-type="article">vitamins</a> and minerals, you can safely take a dose much higher than the RDA or DV without coming close to the UL.</p></section></div><div class="article-page " data-page="2"><section> <p>For instance, the average person can take more than 50 times the RDA of vitamin B6 without reaching the upper limit. But some people develop symptoms of nerve pain with these higher levels of B6. So you should always be cautious. Here are some things to keep in mind:</p><p><strong>Some supplements are riskier than others.</strong> With some vitamins and minerals, the upper limit is pretty close to the RDA. So it's easy to get too much. For example, a man who takes just over three times the RDA of vitamin A would get more than the upper limit. High doses of vitamin A -- and other fat-soluble vitamins like E and K -- can build up in the body and become toxic. Other risky supplements include the minerals iron and <a href="https://www.webmd.com/a-to-z-guides/supplement-guide-selenium" data-crosslink-type="article" data-metrics-module="embd-lnkiclt">selenium</a>.</p><p><strong>Supplements are designed to be additions to your diet. </strong>Popping pills is not the answer to good health. Experts say you should eat a well-<a href="https://www.webmd.com/diet/default.htm" data-crosslink-type="article">balanced diet</a> and take supplements to fill in any nutritional gaps. Some people take a multivitamin with minerals for nutritional insurance.</p></section><section><pagebreak /> <p><strong>The UL is often the limit for </strong><i><strong>all</strong></i><strong> sources of a nutrient.</strong> It can include the amount you get from both food and supplements. So when you figure out whether you've reached the UL on a particular nutrient, take into account the food you eat.</p><p><strong>You won't find the UL on food nutrition labels or on your vitamin bottle.</strong> It's not a number that most people know about. But you'll see it on government websites. And there's a complete list of nutrients with ULs at the end of this article.</p><p><strong>Most supplements don't have a UL -- or RDA or DV.</strong> The government has only set levels for a fraction of the vitamins and supplements available. For most of the supplements you see on the shelves, experts really don't know the ideal or maximum dose.</p><p><strong>Many nutrients, in too high a dose, can be dangerous.</strong> To be on the safe side, steer clear of the UL for any nutrient. And if you have a health condition, check with your doctor before you take supplements. They can tell you if they have side effects or interfere with other medicines you use.</p></section></div><div class="article-page " data-page="3"><section><h2 class="jumplink-headers" id="091e9c5e80222282-3-7">Table: RDAs and ULs for Vitamins and Minerals</h2><p>The Institute of Medicine has determined upper limits for 24 nutrients. This table is for adults ages 19 or older. It doesn't apply to women who are pregnant or breastfeeding, because they have different nutritional requirements.</p><table border="1" bordercolor="#000000" cellpadding="1" cellspacing="0" width="450"><tbody><tr><td bgcolor="#999999" valign="top" width="94"><div style="text-align:center;" align="center" alignment="center"><strong>Vitamin</strong><br /><strong>or Mineral</strong></div></td><td bgcolor="#999999" valign="top" width="192"><div style="text-align:center;" align="center" alignment="center"><strong>Recommended Dietary Allowance (RDA) or Adequate Intake (AI)</strong><br /><i><strong>Nutrients with AIs are marked with an (*)</strong></i></div></td><td bgcolor="#999999" valign="top" width="150"><div style="text-align:center;" align="center" alignment="center"><strong>Upper Tolerable Limit (UL)</strong><br /><i><strong>The highest amount you can take without risk</strong></i></div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Boron</strong></div></td><td valign="top"><i>Not determined.</i></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">20 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/drugs/2/drug-1575/calcium+oral/details" data-crosslink-type="article"><strong>Calcium</strong></a></div></td><td><ul><li><i>Age 19-50: </i>1,000 mg/day</li><li><i>Women age 51+</i>: 1,200 mg/day</li><li><i>Men age 71+</i>: 1,200 mg/day</li></ul></td><td><ul><li><p style="text-align:center;"><i>Age19-50: </i>2,500 mg/day</p></li><li><p style="text-align:center;"><i>Age 51 and up: </i>2,000 mg/day</p></li></ul></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Chloride</strong></div></td><td valign="top"><ul><li><i>Age 19-50: </i>2,300 mg/day</li><li><i>Age 50-70:</i> 2,000 mg/day</li><li><i>Age 70 and older: </i>1,800 mg/day</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">3,600 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Choline</strong><br /><strong>(Vitamin B complex)</strong></div></td><td valign="top"><ul><li><i>Women:</i> 425 mg/day *</li><li><i>Men: </i>550 mg/day *</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">3,500 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Copper</strong></div></td><td valign="top"><p style="text-align:center;">900 micrograms/day</p></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">10,000 mcg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/oral-health/fluoride-treatment" data-crosslink-type="article"><strong>Fluoride</strong></a></div></td><td valign="top"><ul><li><i>Men:</i> 4 mg/day *</li><li><i>Women:</i> 3 mg/day *</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">10 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/drugs/2/drug-8334/folic+acid+oral/details" data-crosslink-type="article"><strong>Folic Acid</strong></a><strong> (Folate)</strong></div></td><td valign="top"><p style="text-align:center;">400 mcg/day</p></td><td valign="top"><div style="text-align:center;" alignment="center">1,000 mcg/day<br /><br /><i>This applies only to synthetic folic acid in supplements or fortified foods. There is no upper limit for folic acid from natural sources.</i></div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Iodine</strong></div></td><td valign="top"><p style="text-align:center;">150 mcg/day</p></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">1,100 mcg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Iron</strong></div></td><td valign="top"><ul><li><i>Men:</i> 8 mg/day</li><li><i>Women age 19-50:</i> 18 mg/day</li><li><i>Women age 51 and up:</i> 8 mg/day</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">45 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/diet/supplement-guide-magnesium" data-crosslink-type="article"><strong>Magnesium</strong></a></div></td><td valign="top"><ul><li><i>Men age 19-30:</i> 400 mg/day</li><li><i>Men age 31 and up:</i> 420 mg/day</li><li><i>Women age 19-30:</i> 310 mg/day</li><li><i>Women age 31 and up:</i> 320 mg/day</li></ul></td><td valign="top"><p style="text-align:center;">350 mg/day</p><p> </p><p> </p><p> </p><div style="text-align:center;" align="center" alignment="center"><i>This applies only to <a href="https://www.webmd.com/diet/supplement-guide-magnesium" data-crosslink-type="article" data-metrics-module="embd-lnkiclt">magnesium</a> in supplements or fortified foods. There is no upper limit for magnesium in food and water.</i></div><p> </p><p> </p><p> </p></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Manganese</strong></div></td><td valign="top"><ul><li><i>Men:</i> 2.3 mg/day *</li><li><i>Women:</i> 1.8 mg/day*</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">11 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Molybdenum</strong></div></td><td valign="top">45 mcg/day</td><td valign="top"><div style="text-align:center;" align="center" alignment="center">2,000 mcg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Nickel</strong></div></td><td valign="top"><i>Not determined</i></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">1 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Phosphorus</strong></div></td><td valign="top">700 mg/day</td><td valign="top"><ul><li><i>Up to age 70:</i> 4,000 mg/day</li><li><i>Over age 70:</i> 3,000 mg/day</li></ul></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/drugs/drug-20248-selenium+sulfide-aloe+vera+top.aspx" data-crosslink-type="article"><strong>Selenium</strong></a></div></td><td valign="top"><p style="text-align:center;">55 mcg/day</p></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">400 mcg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Sodium</strong></div></td><td valign="top"><ul><li><i>Age 19-50:</i> 1,500 mg/day *</li><li><i>Age 51-70:</i> 1,300 mg/day *</li><li><i>Age 71 and up:</i> 1,200 mg/day *</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">2,300 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Vanadium</strong></div></td><td valign="top"><i>Not determined</i></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">1.8 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/vitamins-supplements/ingredientmono-964-vitamin+a.aspx?activeingredientid=964&activeingredientname=vitamin+a" data-crosslink-type="article"><strong>Vitamin A</strong></a></div></td><td valign="top"><ul><li><i>Men</i>: 900 mcg/day</li><li><i>Women</i>: 700 mcg/day</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">3,000 mcg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/vitamins-supplements/ingredientmono-924-niacin+and+niacinamide+vitamin+b3.aspx?activeingredientid=924&activeingredientname=niacin+and+niacinamide+(vitamin+b3)" data-crosslink-type="article"><strong>Vitamin B3</strong></a><strong> (Niacin)</strong></div></td><td valign="top"><ul><li><i>Men:</i> 16 mg/day</li><li><i>Women:</i> 14 mg/day</li></ul></td><td valign="top"><p style="text-align:center;">35 mg/day</p><p style="text-align:center;"><i>This applies only to niacin in supplements or fortified foods. There is no upper limit for niacin in natural sources.</i></p></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/vitamins-supplements/ingredientmono-934-pyridoxine+vitamin+b6.aspx?activeingredientid=934&activeingredientname=pyridoxine+(vitamin+b6)" data-crosslink-type="article"><strong>Vitamin B6</strong></a></div></td><td valign="top"><ul><li><i>Men age 19-50:</i> 1.3 mg/day</li><li><i>Men age 51 up:</i>1.7 mg/day</li><li><i>Women age 19-50:</i> 1.3 mg/day</li><li><i>Women age 51 up:</i> 1.5 mg/day</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">100 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/vitamins-supplements/ingredientmono-1001-vitamin+c+ascorbic+acid.aspx?activeingredientid=1001&activeingredientname=vitamin+c+(ascorbic+acid)" data-crosslink-type="article"><strong>Vitamin C</strong></a></div></td><td valign="top"><ul><li><i>Men:</i> 90 mg/day</li><li><i>Women:</i> 75 mg/day</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">2,000 mg/day</div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/diet/supplement-guide-vitamin-d" data-crosslink-type="article"><strong>Vitamin D</strong></a><strong> (Calciferol)</strong></div></td><td valign="top"><ul><li><i>Age 1-70:</i> 15 mcg/day<br />(600 IU, or international units) *</li><li><i>Age 70 and older:</i> 20 mcg/day (800 IU) *</li></ul></td><td valign="top"><p style="text-align:center;">100 mcg/day<br />(4,000 IU)</p></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><a href="https://www.webmd.com/vitamins-supplements/ingredientmono-954-vitamin+e.aspx?activeingredientid=954&activeingredientname=vitamin+e" data-crosslink-type="article"><strong>Vitamin E</strong></a><br /><strong>(alpha-tocopherol)</strong></div></td><td valign="top"><ul><li>22.4 IU/day<br />(15 mg/day)</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">1,500 IU/day<br />(1,000 mg/day)<br /><br /><i>This applies only to vitamin E in supplements or fortified foods. There is no upper limit for vitamin E from natural sources.</i></div></td></tr><tr><td valign="top"><div style="text-align:center;" align="center" alignment="center"><strong>Zinc</strong></div></td><td valign="top"><ul><li><i>Men:</i> 11 mg/day</li><li><i>Women:</i> 8 mg/day</li></ul></td><td valign="top"><div style="text-align:center;" align="center" alignment="center">40 mg/day</div></td></tr></tbody></table></section></div><div class="article-page " data-page="4"><section> <p> </p><p> </p></section></div></div><!----><div class="related-articles" data-metrics-module="cwnav-art" data-metrics-sel="li"><!----><!----></div><footer><div class="pub-info-and-share-bar"><div class="article__publication-sources"><!--[--><!----><section class="asset-footer"><div class="asset-footer-top"><div class="asset-footer-buttons"><button class="sources-btn">Sources</button><button class="update-history-btn">Update History</button><!----></div><div class="asset-footer-top-share"><div class="module 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for Calcium and Vitamin D."</p><p>Paul M. Coates, PhD, director, Office of Dietary Supplements, National Institutes of Health, Bethesda, MD.</p><p>FamilyDoctor.org: "Vitamins and Minerals: What You Should Know."</p><p>International Food Information Council: "Dietary Reference Intakes: An Update."</p><p>National Osteoporosis Foundation: "NOF Scientific Statement: National Osteoporosis Foundation's Updated Recommendations for Calcium and Vitamin D3 Intake."</p><p>Office of Dietary Supplements: "Dietary Reference Intakes."</p><p>Paul R. 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But a quick glance at a bottle's label can send you running for a dictionary. Things like \"RDA\" or \"DV\" are just a few examples of an alphabet soup that's on many packages. But don't despair. We'll help you demystify supplement guidelines.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003EWhat the Numbers Mean\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EMany of the terms you see on labels or supplement websites can help you understand how much of the vitamin or mineral you should take. 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For certain nutrients, the higher you go above the UL, the greater the chance you'll have problems.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"2\" \u002F\u003E\u003Csection_header is_continued=\"true\"\u003EWhat the Numbers Mean continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003ESeparate from the RDA and the UL, the Food and Drug Administration uses a different measure for the nutrients you need:\u003C\u002Fp\u003E\u003Cp\u003EThe \u003Cstrong\u003EDV (Daily Value)\u003C\u002Fstrong\u003E is the only measurement you'll find on food and supplement labels. That's because space is limited, and there's a need for one single reference number. That number is the amount of a vitamin or nutrient that you should get for top health from a diet of 2,000 calories a day. The DV is sometimes the same as the RDA.\u003C\u002Fp\u003E\u003Cp\u003EAlthough the details may be different, remember that the RDA and DV are both set up to help you get the nutrients you need to prevent disease and avoid problems caused by lack of nutrition.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003EHow Much Is Too Much?\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EBecause high doses of some supplements can have risks, how do you know when it's OK to take more than the RDA or DV?\u003C\u002Fp\u003E\u003Cp\u003EOne way is to look for the UL (tolerable upper intake level) of a nutrient. With many \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdiet\u002Fvitamin-supplement-glossary\" crosslinktype=\"Article\"\u003Evitamins\u003C\u002Fa\u003E and minerals, you can safely take a dose much higher than the RDA or DV without coming close to the UL.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"3\" \u002F\u003E\u003Cpagebreak type=\"desktop\" order=\"2\" \u002F\u003E\u003Csection_header is_continued=\"true\"\u003EHow Much Is Too Much? continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EFor instance, the average person can take more than 50 times the RDA of vitamin B6 without reaching the upper limit. But some people develop symptoms of nerve pain with these higher levels of B6. So you should always be cautious. Here are some things to keep in mind:\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003ESome supplements are riskier than others.\u003C\u002Fstrong\u003E With some vitamins and minerals, the upper limit is pretty close to the RDA. So it's easy to get too much. For example, a man who takes just over three times the RDA of vitamin A would get more than the upper limit. High doses of vitamin A -- and other fat-soluble vitamins like E and K -- can build up in the body and become toxic. Other risky supplements include the minerals iron and \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fa-to-z-guides\u002Fsupplement-guide-selenium\" crosslinktype=\"Article\" crosslinksource=\"ICLT\"\u003Eselenium\u003C\u002Fa\u003E.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003ESupplements are designed to be additions to your diet. \u003C\u002Fstrong\u003EPopping pills is not the answer to good health. Experts say you should eat a well-\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdiet\u002Fdefault.htm\" crosslinktype=\"Article\"\u003Ebalanced diet\u003C\u002Fa\u003E and take supplements to fill in any nutritional gaps. Some people take a multivitamin with minerals for nutritional insurance.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"4\" \u002F\u003E\u003Cpagebreak \u002F\u003E\u003Csection_header is_continued=\"true\"\u003EHow Much Is Too Much? continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003E\u003Cstrong\u003EThe UL is often the limit for \u003C\u002Fstrong\u003E\u003Ci\u003E\u003Cstrong\u003Eall\u003C\u002Fstrong\u003E\u003C\u002Fi\u003E\u003Cstrong\u003E sources of a nutrient.\u003C\u002Fstrong\u003E It can include the amount you get from both food and supplements. So when you figure out whether you've reached the UL on a particular nutrient, take into account the food you eat.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EYou won't find the UL on food nutrition labels or on your vitamin bottle.\u003C\u002Fstrong\u003E It's not a number that most people know about. But you'll see it on government websites. And there's a complete list of nutrients with ULs at the end of this article.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EMost supplements don't have a UL -- or RDA or DV.\u003C\u002Fstrong\u003E The government has only set levels for a fraction of the vitamins and supplements available. For most of the supplements you see on the shelves, experts really don't know the ideal or maximum dose.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EMany nutrients, in too high a dose, can be dangerous.\u003C\u002Fstrong\u003E To be on the safe side, steer clear of the UL for any nutrient. And if you have a health condition, check with your doctor before you take supplements. They can tell you if they have side effects or interfere with other medicines you use.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"5\" \u002F\u003E\u003Cpagebreak type=\"desktop\" order=\"3\" \u002F\u003E\u003Csection_header\u003ETable: RDAs and ULs for Vitamins and Minerals\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EThe Institute of Medicine has determined upper limits for 24 nutrients. This table is for adults ages 19 or older. It doesn't apply to women who are pregnant or breastfeeding, because they have different nutritional requirements.\u003C\u002Fp\u003E\u003Ctable border=\"1\" bordercolor=\"#000000\" cellpadding=\"1\" cellspacing=\"0\" width=\"450\"\u003E\u003Ctbody\u003E\u003Ctr\u003E\u003Ctd bgcolor=\"#999999\" valign=\"top\" width=\"94\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EVitamin\u003C\u002Fstrong\u003E\u003Cbr \u002F\u003E\u003Cstrong\u003Eor Mineral\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd bgcolor=\"#999999\" valign=\"top\" width=\"192\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003ERecommended Dietary Allowance (RDA) or Adequate Intake (AI)\u003C\u002Fstrong\u003E\u003Cbr \u002F\u003E\u003Ci\u003E\u003Cstrong\u003ENutrients with AIs are marked with an (*)\u003C\u002Fstrong\u003E\u003C\u002Fi\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd bgcolor=\"#999999\" valign=\"top\" width=\"150\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EUpper Tolerable Limit (UL)\u003C\u002Fstrong\u003E\u003Cbr \u002F\u003E\u003Ci\u003E\u003Cstrong\u003EThe highest amount you can take without risk\u003C\u002Fstrong\u003E\u003C\u002Fi\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EBoron\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Ci\u003ENot determined.\u003C\u002Fi\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E20 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdrugs\u002F2\u002Fdrug-1575\u002Fcalcium+oral\u002Fdetails\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003ECalcium\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EAge 19-50: \u003C\u002Fi\u003E1,000 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen age 51+\u003C\u002Fi\u003E: 1,200 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EMen age 71+\u003C\u002Fi\u003E: 1,200 mg\u002Fday\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd\u003E\u003Cul\u003E\u003Cli\u003E\u003Cp style=\"text-align:center;\"\u003E\u003Ci\u003EAge19-50: \u003C\u002Fi\u003E2,500 mg\u002Fday\u003C\u002Fp\u003E\u003C\u002Fli\u003E\u003Cli\u003E\u003Cp style=\"text-align:center;\"\u003E\u003Ci\u003EAge 51 and up: \u003C\u002Fi\u003E2,000 mg\u002Fday\u003C\u002Fp\u003E\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EChloride\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EAge 19-50: \u003C\u002Fi\u003E2,300 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EAge 50-70:\u003C\u002Fi\u003E 2,000 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EAge 70 and older: \u003C\u002Fi\u003E1,800 mg\u002Fday\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E3,600 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003ECholine\u003C\u002Fstrong\u003E\u003Cbr \u002F\u003E\u003Cstrong\u003E(Vitamin B complex)\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EWomen:\u003C\u002Fi\u003E 425 mg\u002Fday *\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EMen: \u003C\u002Fi\u003E550 mg\u002Fday *\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E3,500 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003ECopper\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cp style=\"text-align:center;\"\u003E900 micrograms\u002Fday\u003C\u002Fp\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E10,000 mcg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Foral-health\u002Ffluoride-treatment\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003EFluoride\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EMen:\u003C\u002Fi\u003E 4 mg\u002Fday *\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen:\u003C\u002Fi\u003E 3 mg\u002Fday *\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E10 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdrugs\u002F2\u002Fdrug-8334\u002Ffolic+acid+oral\u002Fdetails\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003EFolic Acid\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003Cstrong\u003E (Folate)\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cp style=\"text-align:center;\"\u003E400 mcg\u002Fday\u003C\u002Fp\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" alignment=\"center\"\u003E1,000 mcg\u002Fday\u003Cbr \u002F\u003E\u003Cbr \u002F\u003E\u003Ci\u003EThis applies only to synthetic folic acid in supplements or fortified foods. There is no upper limit for folic acid from natural sources.\u003C\u002Fi\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EIodine\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cp style=\"text-align:center;\"\u003E150 mcg\u002Fday\u003C\u002Fp\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E1,100 mcg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EIron\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EMen:\u003C\u002Fi\u003E 8 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen age 19-50:\u003C\u002Fi\u003E 18 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen age 51 and up:\u003C\u002Fi\u003E 8 mg\u002Fday\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E45 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdiet\u002Fsupplement-guide-magnesium\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003EMagnesium\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EMen age 19-30:\u003C\u002Fi\u003E 400 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EMen age 31 and up:\u003C\u002Fi\u003E 420 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen age 19-30:\u003C\u002Fi\u003E 310 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen age 31 and up:\u003C\u002Fi\u003E 320 mg\u002Fday\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cp style=\"text-align:center;\"\u003E350 mg\u002Fday\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ci\u003EThis applies only to \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdiet\u002Fsupplement-guide-magnesium\" crosslinktype=\"Article\" crosslinksource=\"ICLT\"\u003Emagnesium\u003C\u002Fa\u003E in supplements or fortified foods. There is no upper limit for magnesium in food and water.\u003C\u002Fi\u003E\u003C\u002Fdiv\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EManganese\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EMen:\u003C\u002Fi\u003E 2.3 mg\u002Fday *\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen:\u003C\u002Fi\u003E 1.8 mg\u002Fday*\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E11 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EMolybdenum\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E45 mcg\u002Fday\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E2,000 mcg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003ENickel\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Ci\u003ENot determined\u003C\u002Fi\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E1 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EPhosphorus\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E700 mg\u002Fday\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EUp to age 70:\u003C\u002Fi\u003E 4,000 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EOver age 70:\u003C\u002Fi\u003E 3,000 mg\u002Fday\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdrugs\u002Fdrug-20248-selenium+sulfide-aloe+vera+top.aspx\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003ESelenium\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cp style=\"text-align:center;\"\u003E55 mcg\u002Fday\u003C\u002Fp\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E400 mcg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003ESodium\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EAge 19-50:\u003C\u002Fi\u003E 1,500 mg\u002Fday *\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EAge 51-70:\u003C\u002Fi\u003E 1,300 mg\u002Fday *\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EAge 71 and up:\u003C\u002Fi\u003E 1,200 mg\u002Fday *\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E2,300 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EVanadium\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Ci\u003ENot determined\u003C\u002Fi\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E1.8 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fvitamins-supplements\u002Fingredientmono-964-vitamin+a.aspx?activeingredientid=964&activeingredientname=vitamin+a\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003EVitamin A\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EMen\u003C\u002Fi\u003E: 900 mcg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen\u003C\u002Fi\u003E: 700 mcg\u002Fday\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E3,000 mcg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fvitamins-supplements\u002Fingredientmono-924-niacin+and+niacinamide+vitamin+b3.aspx?activeingredientid=924&activeingredientname=niacin+and+niacinamide+(vitamin+b3)\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003EVitamin B3\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003Cstrong\u003E (Niacin)\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EMen:\u003C\u002Fi\u003E 16 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen:\u003C\u002Fi\u003E 14 mg\u002Fday\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cp style=\"text-align:center;\"\u003E35 mg\u002Fday\u003C\u002Fp\u003E\u003Cp style=\"text-align:center;\"\u003E\u003Ci\u003EThis applies only to niacin in supplements or fortified foods. There is no upper limit for niacin in natural sources.\u003C\u002Fi\u003E\u003C\u002Fp\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fvitamins-supplements\u002Fingredientmono-934-pyridoxine+vitamin+b6.aspx?activeingredientid=934&activeingredientname=pyridoxine+(vitamin+b6)\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003EVitamin B6\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EMen age 19-50:\u003C\u002Fi\u003E 1.3 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EMen age 51 up:\u003C\u002Fi\u003E1.7 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen age 19-50:\u003C\u002Fi\u003E 1.3 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen age 51 up:\u003C\u002Fi\u003E 1.5 mg\u002Fday\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E100 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fvitamins-supplements\u002Fingredientmono-1001-vitamin+c+ascorbic+acid.aspx?activeingredientid=1001&activeingredientname=vitamin+c+(ascorbic+acid)\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003EVitamin C\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EMen:\u003C\u002Fi\u003E 90 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen:\u003C\u002Fi\u003E 75 mg\u002Fday\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E2,000 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdiet\u002Fsupplement-guide-vitamin-d\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003EVitamin D\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003Cstrong\u003E (Calciferol)\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EAge 1-70:\u003C\u002Fi\u003E 15 mcg\u002Fday\u003Cbr \u002F\u003E(600 IU, or international units) *\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EAge 70 and older:\u003C\u002Fi\u003E 20 mcg\u002Fday (800 IU) *\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cp style=\"text-align:center;\"\u003E100 mcg\u002Fday\u003Cbr \u002F\u003E(4,000 IU)\u003C\u002Fp\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fvitamins-supplements\u002Fingredientmono-954-vitamin+e.aspx?activeingredientid=954&activeingredientname=vitamin+e\" crosslinktype=\"Article\"\u003E\u003Cstrong\u003EVitamin E\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E\u003Cbr \u002F\u003E\u003Cstrong\u003E(alpha-tocopherol)\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E22.4 IU\u002Fday\u003Cbr \u002F\u003E(15 mg\u002Fday)\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E1,500 IU\u002Fday\u003Cbr \u002F\u003E(1,000 mg\u002Fday)\u003Cbr \u002F\u003E\u003Cbr \u002F\u003E\u003Ci\u003EThis applies only to vitamin E in supplements or fortified foods. There is no upper limit for vitamin E from natural sources.\u003C\u002Fi\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003Ctr\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E\u003Cstrong\u003EZinc\u003C\u002Fstrong\u003E\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cul\u003E\u003Cli\u003E\u003Ci\u003EMen:\u003C\u002Fi\u003E 11 mg\u002Fday\u003C\u002Fli\u003E\u003Cli\u003E\u003Ci\u003EWomen:\u003C\u002Fi\u003E 8 mg\u002Fday\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Ftd\u003E\u003Ctd valign=\"top\"\u003E\u003Cdiv style=\"text-align:center;\" align=\"center\" alignment=\"center\"\u003E40 mg\u002Fday\u003C\u002Fdiv\u003E\u003C\u002Ftd\u003E\u003C\u002Ftr\u003E\u003C\u002Ftbody\u003E\u003C\u002Ftable\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"6\" \u002F\u003E\u003Cpagebreak type=\"desktop\" order=\"4\" \u002F\u003E\u003Csection_header is_continued=\"true\"\u003ETable: RDAs and ULs for Vitamins and Minerals continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E"},"citations":{"#cdata-section":"\u003Cp\u003ESOURCES:\u003C\u002Fp\u003E\u003Cp\u003EInstitute of Medicine (IOM): \"Dietary Reference Intakes for Calcium and Vitamin D.\"\u003C\u002Fp\u003E\u003Cp\u003EPaul M. Coates, PhD, director, Office of Dietary Supplements, National Institutes of Health, Bethesda, MD.\u003C\u002Fp\u003E\u003Cp\u003EFamilyDoctor.org: \"Vitamins and Minerals: What You Should Know.\"\u003C\u002Fp\u003E\u003Cp\u003EInternational Food Information Council: \"Dietary Reference Intakes: An Update.\"\u003C\u002Fp\u003E\u003Cp\u003ENational Osteoporosis Foundation: \"NOF Scientific Statement: National Osteoporosis Foundation's Updated Recommendations for Calcium and Vitamin D3 Intake.\"\u003C\u002Fp\u003E\u003Cp\u003EOffice of Dietary Supplements: \"Dietary Reference Intakes.\"\u003C\u002Fp\u003E\u003Cp\u003EPaul R. Thomas, EdD, RD, scientific consultant, Office of Dietary Supplements, National Institutes of Health, Bethesda, MD.\u003C\u002Fp\u003E"},"related_links_header":"","related_links_text":{"#cdata-section":""}}}}}},"staticPublicPath":"\u002Fstatic_vue\u002F091e9c5e81e4870f\u002Fclient\u002F","isInteractivePage":false},"flow":{"flowInfo":false},"quiz":{"rmq":{}}}</script> <script>window.__INITIAL_STATE__.route.hash = window.location.hash; window.__INITIAL_STATE__.route.fullPath = window.location.pathname; window.__INITIAL_STATE__.route.path = window.location.pathname; if(window.location.search !== ""){ var search = window.location.search.substring(1); window.__INITIAL_STATE__.route.query=JSON.parse('{"' + search.replace(/&/g, '","').replace(/=/g,'":"') + '"}', function(key, value) { return key===""?value:decodeURIComponent(value) }) } else {window.__INITIAL_STATE__.route.query={};}</script><script>try{var _comscore=_comscore||[];_comscore.push({c1:'2',c2:'6035829',options:{enableFirstPartyCookie:!0}}),function(){var e=document.createElement('script'),o=document.getElementsByTagName('script')[0];e.async=!0,e.src='https://sb.scorecardresearch.com/cs/6035829/beacon.js',o.parentNode.insertBefore(e,o),window.__INITIAL_STATE__?window.document.addEventListener('before_pv',function(){window.document.addEventListener('onAdobeOmniBeforePv',function(){window.biConsumerIsReady&&self.COMSCORE&&COMSCORE.beacon({c1:'2',c2:'6035829',options:{enableFirstPartyCookie:!0}})})},{once:!0}):window.document.addEventListener('onAdobeOmniBeforePv',function(){self.COMSCORE&&COMSCORE.beacon({c1:'2',c2:'6035829',options:{enableFirstPartyCookie:!0}})})}()}catch(e){}</script><noscript><img src='https://sb.scorecardresearch.com/p?c1=2&c2=6035829&cv=3.9.1&cj=1'></noscript><!--$$NGINX_TARGET$$--> <!--$$CLOUDFLARE_TARGET$$--><!-- webmd-ccm-Non-EU gdpr phase 2 --> <script id="cookieConsentScriptNonEU" async="async" src="https://img.lb.wbmdstatic.com/webmd_static_vue/file-explorer/webmd/consumer_assets/site_images/webmd-ccm/webmd-ccm-lite.min.js"></script><script type="text/javascript" async="async" importance="high" src="https://securepubads.g.doubleclick.net/tag/js/gpt.js" id="GPT_JS"></script><script>window.webmd.googleloaded = true; window.googleloaded = true; </script> <script>window.performance.mark('page-end');</script> <link rel="stylesheet" href="//img.lb.wbmdstatic.com/webmd_static_vue/091e9c5e81e4870f/client/css/non-critical-1739872131664.5afc32f1.css"> </body> </html>