{"id":6622,"date":"2026-09-29T06:50:50","date_gmt":"2026-09-29T06:50:50","guid":{"rendered":"https:\/\/bioprofile.com\/?page_id=6622"},"modified":"2026-10-01T08:47:54","modified_gmt":"2026-10-01T08:47:54","slug":"ferritin","status":"publish","type":"page","link":"https:\/\/bioprofile.com\/en\/biomarkers\/ferritin\/","title":{"rendered":"Ferritin"},"content":{"rendered":"\n<div id=\"content\" tabindex=\"-1\"><\/div>\n<style>@import url('https:\/\/fonts.googleapis.com\/css2?family=Poppins:ital,wght@0,400;0,600;0,700;0,800;1,400&display=swap');\n\/* ===========================================================================\n   BioProfile advertorial, the design Jesse approved on 2026-07-30, expressed\n   as a WordPress design system.\n\n   THE @import IS LOAD BEARING and must stay the first thing in this sheet (a\n   CSS @import after any rule is dropped by the parser). elementor_canvas does\n   not enqueue the theme's fonts, so without it the whole page falls back to the\n   system font. Caught by LOOKING at the live page on 2026-07-30, right after\n   the template was switched to canvas.\n\n   Everything is scoped to `.bp-adv`, so nothing here can reach the rest of\n   bioprofile.com, and core blocks are styled BY ELEMENT so a heading, a\n   paragraph, a quote, a list, an image or a button inserted by hand inside the\n   advertorial comes out on-design with no class to remember.\n\n   Jesse's design feedback, 2026-07-29 23:38, point by point:\n   1. the light green and the dark green are the preferred colours; grey may be\n      used but the page must NOT open grey;\n   2. more colour and variation across sections, e.g. a colour block on the left\n      or the right side of a section, without overdesign;\n   3. ONE H1, plain text on white; everything else H2 or H3; an H2 may carry its\n      own background colour so the page can be read from the headings alone; an\n      H3 keeps its section background and gets a bigger font size;\n   4. reuse the results page design feel;\n   5. Written by \/ Verified by, the placeholder blocks and noindex stay.\n\n   COLOUR PROVENANCE. Not one hex is invented.\n   - #b7cb32  LIGHT GREEN, brand manual \"colours rejuvenation protocol\"\n              (R183 G203 B51). Same value as --bp-lime in\n              brands\/bioprofile\/brand\/tokens.md.\n   - #006b62  DARK GREEN, brand manual, nourish the cells (R0 G107 B98).\n   - #005859  brand manual primary teal, the value the brand is built on.\n   - #228a62  brand manual, challenge the body (R34 G138 B98).\n   - #7ca64c  brand manual, calm the mind (R124 G166 B76).\n   - #dbd4cd  brand manual \"additional color\", the warm neutral.\n   - #B7CB3329 is the brand token --bp-lime-soft (light green at 16 percent).\n   - the gradients are the brand token layer's own, copied verbatim.\n\n   SPECIFICITY NOTE. Elementor's global kit emits `.elementor-kit-6 h2` style\n   rules at (0,1,1). Element rules below are written `.bp-adv h2`, also (0,1,1),\n   and win on source order because this sheet is inline in the body while the\n   kit is a <link> in the head. Component rules that MUST NOT lose carry two\n   classes, e.g. `.bp-adv .wp-block-button__link`.\n\n   LAYOUT NOTE. Vertical rhythm uses `margin-block` and never the `margin`\n   shorthand, so the measure rule `.bp-adv-sec > * { margin-inline: auto }` can\n   centre a block without being outranked by its own element rule.\n   =========================================================================== *\/\n\n.bp-adv {\n  --bp-ink: #212527;\n  --bp-teal: #005859;\n  --bp-forest: #006B62;\n  --bp-emerald: #228A62;\n  --bp-olive: #7CA64C;\n  --bp-lime: #B7CB33;\n  --bp-lime-soft: #B7CB3329;\n  --bp-sand: #DBD4CB;\n  --bp-white: #FFFFFF;\n  --bp-foot: #6b6b6b;\n  --bp-grad-dark: linear-gradient(237deg, rgba(0,88,89,0.00) 62.94%, #005859 100%), linear-gradient(90deg, rgba(34,138,98,0.00) 40%, #228A62 100%), #006B62;\n  --bp-grad-lime: linear-gradient(110deg, rgba(183,203,51,0.00) 36.06%, rgba(183,203,51,0.25) 97.65%), #FFFFFF;\n  --bp-font: 'Poppins','Segoe UI',Arial,sans-serif;\n  --bp-fs-h1: 44px; --bp-fs-h2: 31px; --bp-fs-h3: 24px; --bp-fs-pre: 15px;\n  --bp-fs-body: 17px; --bp-fs-small: 14px; --bp-fs-foot: 13px; --bp-fs-btn: 17px;\n  --bp-lh-body: 1.75;\n  --bp-s-1: 4px; --bp-s-2: 8px; --bp-s-3: 12px; --bp-s-4: 16px;\n  --bp-s-5: 24px; --bp-s-6: 32px; --bp-s-7: 44px; --bp-s-8: 72px;\n  --bp-measure: 760px; --bp-side: 40px;\n  --bp-radius-photo: 16px; --bp-radius-btn: 10px; --bp-radius-card: 20px;\n  --bp-shadow: 0 10px 30px rgba(0,88,89,0.10);\n  font-family: var(--bp-font);\n  font-size: var(--bp-fs-body);\n  line-height: var(--bp-lh-body);\n  color: var(--bp-ink);\n  background: var(--bp-white);\n  -webkit-font-smoothing: antialiased;\n}\n.bp-adv, .bp-adv * { box-sizing: border-box; }\n.bp-adv p, .bp-adv li, .bp-adv h1, .bp-adv h2, .bp-adv h3, .bp-adv blockquote,\n.bp-adv a, .bp-adv cite, .bp-adv span { overflow-wrap: break-word; min-width: 0; }\n\n\/* THE TOGGLE. One word in the block's own \"Additional CSS class(es)\" field\n   hides an optional component on the front end without deleting anything. *\/\n.bp-adv .bp-off { display: none !important; }\n\n\/* the page opens on green, never on grey (his point 1) *\/\n.bp-adv .bp-adv-rule {\n  height: 6px; border: 0; margin-block: 0; max-width: none;\n  background: linear-gradient(90deg, #005859 0%, #006B62 38%, #228A62 66%, #B7CB33 100%);\n}\n\n\/* --- section surfaces ------------------------------------------------------ *\/\n.bp-adv-sec { position: relative; background: var(--bp-white);\n  padding: var(--bp-s-8) var(--bp-side); margin-block: 0; }\n\/* the measure: every direct child of a section is the 760px text column *\/\n.bp-adv-sec > * { max-width: var(--bp-measure); margin-inline: auto; }\n.bp-adv-sec > *:last-child { margin-block-end: 0; }\n.bp-adv-sec--wash  { background: linear-gradient(180deg, #B7CB331F 0%, #B7CB3312 100%), #FFFFFF; }\n.bp-adv-sec--dark  { background: var(--bp-grad-dark); color: var(--bp-white); }\n.bp-adv-sec--dark p, .bp-adv-sec--dark cite, .bp-adv-sec--dark li { color: var(--bp-white); }\n.bp-adv-sec--offer { background: var(--bp-grad-lime); text-align: center; }\n.bp-adv-sec--hero  { padding-block-start: var(--bp-s-6); }\n.bp-adv-sec--disclosure { padding-block: var(--bp-s-6);\n  border-top: 1px solid var(--bp-sand); }\n\n\/* --- the side accent bar, his own example (\"a colour block on the left or the\n       right side of a section\"), design rev 3: a slim vertical bar hugging the\n       text column rather than a wide margin panel. Below 1100px the margin is\n       gone, so it becomes a slim top edge. ---------------------------------- *\/\n.bp-adv-rail { overflow: hidden; }\n.bp-adv-rail::before {\n  content: \"\"; position: absolute; top: var(--bp-s-7); bottom: var(--bp-s-7);\n  width: 6px; border-radius: 3px;\n  background: linear-gradient(180deg, var(--bp-forest) 0%, var(--bp-lime) 100%);\n}\n.bp-adv-rail--left::before  { left: calc((100% - var(--bp-measure)) \/ 2 - 34px); }\n.bp-adv-rail--right::before { right: calc((100% - var(--bp-measure)) \/ 2 - 34px); }\n@media (max-width: 1099px) {\n  .bp-adv-rail::before { left: 0; right: 0; width: auto; bottom: auto; top: 0;\n    height: 4px; border-radius: 0; background: var(--bp-lime); }\n}\n\n\/* --- CORE BLOCKS, styled by element. This is the part that makes an inserted\n       block come out on-design with no class. --------------------------------- *\/\n.bp-adv p { font-size: var(--bp-fs-body); line-height: var(--bp-lh-body);\n  margin-block: 0 var(--bp-s-5); }\n.bp-adv h1 { font-size: var(--bp-fs-h1); font-weight: 700; line-height: 1.22;\n  margin-block: 0 var(--bp-s-4); }\n\/* an H2 is its own colour band, so the page can be read from the headings\n   alone (his point 3). Dark green on light sections, light green on the dark\n   one, so a heading always wins against its own background. *\/\n.bp-adv h2 {\n  font-size: var(--bp-fs-h2); font-weight: 700; line-height: 1.28;\n  margin-block: 0 var(--bp-s-5);\n  background: var(--bp-grad-dark); color: var(--bp-white);\n  padding: var(--bp-s-4) var(--bp-s-5);\n  border-radius: var(--bp-radius-btn);\n  border-left: 6px solid var(--bp-lime);\n}\n.bp-adv-sec--dark h2 { background: var(--bp-lime); color: var(--bp-ink);\n  border-left-color: var(--bp-forest); }\n\/* H3: same background as its section, bigger font (his point 3, verbatim) *\/\n.bp-adv h3 { font-size: var(--bp-fs-h3); font-weight: 700; line-height: 1.35;\n  color: var(--bp-forest); background: transparent; margin-block: 0 var(--bp-s-3); }\n.bp-adv-sec--dark h3 { color: var(--bp-lime); }\n.bp-adv ul, .bp-adv ol { font-size: var(--bp-fs-body); line-height: var(--bp-lh-body);\n  margin-block: 0 var(--bp-s-5); padding-left: var(--bp-s-5); }\n.bp-adv li { margin-block-end: var(--bp-s-2); }\n.bp-adv a { color: var(--bp-teal); text-decoration: underline; }\n.bp-adv a:hover { color: var(--bp-olive); }\n.bp-adv-sec--dark a, .bp-adv-sec--dark strong { color: var(--bp-lime); }\n.bp-adv strong { font-weight: 700; }\n\/* the highlight pill. Colours ride on the inline style core writes, so only\n   the shape lives here and any <mark> in the article picks it up. *\/\n.bp-adv mark {\n  padding: 0 10px; border-radius: 10px; display: inline;\n  -webkit-box-decoration-break: clone; box-decoration-break: clone;\n}\n\/* figures match the approved page exactly: card radius plus the soft shadow,\n   and a left-aligned caption rather than core's centred one *\/\n.bp-adv .wp-block-image { margin-block: var(--bp-s-5); margin-inline: auto; }\n.bp-adv .wp-block-image img { display: block; width: 100%; height: auto;\n  border-radius: var(--bp-radius-card); box-shadow: var(--bp-shadow); }\n.bp-adv .wp-block-image figcaption { font-size: var(--bp-fs-foot); line-height: 1.55;\n  color: var(--bp-foot); text-align: left; margin-block: var(--bp-s-2) 0; }\n.bp-adv .wp-block-embed, .bp-adv .wp-block-video { margin-block: var(--bp-s-5); }\n.bp-adv .wp-block-embed iframe, .bp-adv .wp-block-video video {\n  width: 100%; border-radius: var(--bp-radius-photo); }\n.bp-adv .wp-block-separator:not(.bp-adv-rule) { border: 0; border-top: 1px solid var(--bp-sand);\n  margin-block: var(--bp-s-5); }\n\n\/* quotes: core pullquote and core quote both land on the lime rule. The\n   font-size reset undoes core's own 1.5em on the figure, which would otherwise\n   leak into anything inside the quote that has no size of its own. *\/\n\/* margin-inline is load bearing, and it must be `auto` rather than `0`.\n   `blockquote` and `figure` carry a 40px side margin in the browser's own\n   default stylesheet, which indents the quote inside its rule and makes the\n   copy wrap early on a phone. But these blocks are direct children of a\n   section, so zeroing the side margin also defeats the measure rule\n   `.bp-adv-sec > * { margin-inline: auto }` and pins them to the left edge. *\/\n.bp-adv .wp-block-pullquote, .bp-adv .wp-block-quote {\n  border: 0; border-left: 5px solid var(--bp-lime); background: transparent;\n  padding: var(--bp-s-2) 0 var(--bp-s-2) var(--bp-s-5);\n  margin-block: var(--bp-s-5); margin-inline: auto;\n  text-align: left; font-size: var(--bp-fs-body);\n}\n.bp-adv .wp-block-pullquote blockquote { border: 0; margin: 0; padding: 0; }\n.bp-adv .wp-block-pullquote p, .bp-adv .wp-block-quote p {\n  font-size: 24px; line-height: 1.45; font-weight: 600;\n  margin-block: 0 var(--bp-s-2); color: var(--bp-forest); }\n.bp-adv .wp-block-pullquote cite, .bp-adv .wp-block-quote cite {\n  display: block; margin: 0; font-size: var(--bp-fs-small); color: var(--bp-foot);\n  font-style: normal; text-transform: none; }\n\n\/* buttons: two classes so core's own .wp-block-button__link cannot win *\/\n.bp-adv .wp-block-buttons { display: flex; justify-content: center;\n  margin-block: 0 var(--bp-s-4); }\n.bp-adv .wp-block-button__link {\n  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;\n  background: var(--bp-teal); color: var(--bp-white); font-size: var(--bp-fs-btn);\n  font-weight: 700; line-height: 1.2; border-radius: var(--bp-radius-btn);\n  padding: 15px 44px; text-decoration: none; transition: background 250ms ease;\n  box-shadow: var(--bp-shadow);\n}\n.bp-adv .wp-block-button__link:hover { background: var(--bp-olive); color: var(--bp-white); }\n\n\/* --- slot 1: pre-headline, headline, sub-headline (Jesse's headline skill) --- *\/\n.bp-adv .bp-adv-preheadline {\n  color: var(--bp-forest); font-size: var(--bp-fs-pre); font-weight: 600; line-height: 1.5;\n  border-left: 4px solid var(--bp-lime); padding-left: var(--bp-s-3);\n  margin-block: 0 var(--bp-s-4);\n}\n.bp-adv .bp-adv-subheadline { font-size: 21px; line-height: 1.5; font-weight: 600;\n  color: var(--bp-forest); margin-block: 0 var(--bp-s-5); }\n.bp-adv .bp-adv-standfirst { font-size: 19px; line-height: 1.65;\n  margin-block: 0 var(--bp-s-5); }\n.bp-adv .bp-adv-lede { font-size: 18px; line-height: 1.7;\n  margin-block: 0 var(--bp-s-5); }\n.bp-adv .bp-adv-byline { font-size: var(--bp-fs-small); color: var(--bp-foot);\n  line-height: 1.6; margin-block: 0 var(--bp-s-5); }\n.bp-adv .bp-adv-socialproof { font-size: var(--bp-fs-small); color: var(--bp-foot);\n  margin-block: 0 var(--bp-s-5); }\n\/* the offer headline above the CTA. Jesse asked for a second H1 here; the brand\n   doc's accessibility rule is one h1 per page, so it is rendered at H1 size and\n   stays an h2 element. Named in the close as the one design conflict. *\/\n.bp-adv h2.bp-adv-offerhead {\n  font-size: var(--bp-fs-h1); font-weight: 700; line-height: 1.22;\n  margin-block: 0 var(--bp-s-4); text-align: center; color: var(--bp-ink);\n  background: none; padding: 0; border: 0; border-radius: 0;\n}\n\n\/* --- Written by + Verified by. 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Geraadpleegd op 29 september 2026.\",\"url\":\"https:\/\/medlineplus.gov\/lab-tests\/iron-tests\/\"}]},{\"@type\":\"MedicalTest\",\"@id\":\"https:\/\/bioprofile.com\/biomarkers\/ferritine\/#biomarker\",\"name\":\"Ferritine\",\"alternateName\":[\"serumferritine\",\"ferritin\"]}]}<\/script>\n\n\n\n<section class=\"wp-block-group bp-adv bp-biomarker bp-biomarker--page is-layout-flow wp-block-group-is-layout-flow\">\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity bp-adv-rule\"\/>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--hero is-layout-flow wp-block-group-is-layout-flow\">\n\n<p class=\"bp-bm-crumbs wp-block-paragraph\"><a href=\"https:\/\/bioprofile.com\/en\/\">Home<\/a> \u203a <a href=\"https:\/\/bioprofile.com\/en\/biomarkers\/\">Biomarkers<\/a> \u203a <span>Ferritin<\/span><\/p>\n\n\n\n<h1 class=\"wp-block-heading bp-adv-h1\">Ferritin: what your value says about your iron store<\/h1>\n\n\n\n<p class=\"bp-adv-standfirst wp-block-paragraph\">In a French study, 198 women aged 18 to 53 with unexplained fatigue, without anaemia and with a ferritin below 50 \u00b5g\/l, were given iron or a placebo for twelve weeks. Their fatigue went down by 48 per cent in the iron group and by 29 per cent in the placebo group.<sup>[1]<\/sup><\/p>\n\n\n\n<p class=\"bp-adv-lede wp-block-paragraph\">On this page you can read what ferritin is, what the guidelines say about a value that is too low or too high, what affects your iron store and which values are best read alongside it.<\/p>\n\n\n\n<p class=\"bp-bm-names wp-block-paragraph\">Also known as: serum ferritin, ferritine (Dutch). At the lab: FERR.<\/p>\n\n\n\n<p class=\"bp-adv-byline wp-block-paragraph\">Updated on 29 September 2026<\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--wash is-layout-flow wp-block-group-is-layout-flow\">\n\n<div class=\"wp-block-group bp-bm-toc is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-inhoud\">On this page<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><a href=\"#bp-in-het-kort\">In short<\/a><\/li>\n\n\n<li><a href=\"#bp-wat-is-ferritine\">What is ferritin?<\/a><\/li>\n\n\n<li><a href=\"#bp-waarom-het-ertoe-doet\">Why your iron stores matter<\/a><\/li>\n\n\n<li><a href=\"#bp-wat-je-waarde-zegt\">What your ferritin value says<\/a><\/li>\n\n\n<li><a href=\"#bp-wat-het-beinvloedt\">What affects your ferritin<\/a><\/li>\n\n\n<li><a href=\"#bp-welke-pakketten\">Which BioProfile packages measure ferritin<\/a><\/li>\n\n\n<li><a href=\"#bp-waarden-die-erbij-horen\">Related values<\/a><\/li>\n\n\n<li><a href=\"#bp-hoe-gemaakt\">How this page was made<\/a><\/li>\n\n\n<li><a href=\"#bp-bronnen\">Sources<\/a><\/li>\n\n<\/ul>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-in-het-kort\">In short<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>Ferritin is the protein your body stores iron in. Without inflammation, the ferritin in your blood follows the size of your iron store.<sup>[2]<\/sup><\/li>\n\n\n<li>Below 15 \u00b5g\/l points to an iron deficiency in an otherwise healthy adult, according to the WHO guideline.<sup>[2]<\/sup><\/li>\n\n\n<li>Above 150 \u00b5g\/l in women who menstruate, or above 200 \u00b5g\/l in men and in women who no longer menstruate, can point to a risk of iron overload.<sup>[2]<\/sup><\/li>\n\n\n<li>Inflammation or an infection raises ferritin. That is why you read ferritin together with an inflammation marker such as CRP.<sup>[2]<\/sup><\/li>\n\n<\/ul>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--wash is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-wat-is-ferritine\">What is ferritin?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Your body holds 3 to 4 grams of iron. About a quarter of that lies stored in the liver, the spleen and the bone marrow, as a reserve for later.<sup>[3]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ferritin is the protein that holds on to iron. A small part of it ends up in your blood, and that is the part the lab measures. Without inflammation, the amount of ferritin in your blood is linked to the total iron store in your body: little ferritin when there is a deficiency, a lot when there is a surplus.<sup>[2]<\/sup><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-waarom-het-ertoe-doet\">Why your iron store matters<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Iron is needed for hemoglobin, the part of your red blood cells that carries oxygen through your body. Your cells use iron to make energy, and it contributes to the normal working of your immune system.<sup>[3]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You often notice a deficiency as tiring quickly, pale skin, getting out of breath quickly and restless legs. Those complaints can be there before there is anaemia, the most severe form of iron deficiency.<sup>[3]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Women who menstruate, women who are pregnant and women who are breastfeeding are more likely to have a deficiency. For vegetarians too it is good to keep an eye on iron.<sup>[3]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Too much iron can harm the liver. With the inherited condition haemochromatosis, in about 0.5 per cent of the population, the body builds up iron.<sup>[3]<\/sup><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--wash is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-wat-je-waarde-zegt\">What your ferritin value says<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">The lab's reference range<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The lab BioProfile works with uses a reference range of 30 to 400 \u00b5g\/l. A value between those two limits is one the lab calls normal. The lab asks you to have blood drawn while fasting for this value.<sup>[4]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What the WHO guideline says<\/h3>\n\n\n\n<figure class=\"wp-block-table bp-bm-table\"><table><thead><tr><th>Ferritin (\u00b5g\/l)<\/th><th>What it can mean<\/th><th>Who it is for<\/th><\/tr><\/thead><tbody><tr><td>below 15<sup>[2]<\/sup><\/td><td>iron deficiency<\/td><td>adults who are otherwise healthy<\/td><\/tr><tr><td>below 70<sup>[2]<\/sup><\/td><td>iron deficiency<\/td><td>adults with an infection or inflammation<\/td><\/tr><tr><td>above 150<sup>[2]<\/sup><\/td><td>possible risk of iron build-up<\/td><td>women who menstruate and are otherwise healthy<\/td><\/tr><tr><td>above 200<sup>[2]<\/sup><\/td><td>possible risk of iron build-up<\/td><td>men, and women who no longer menstruate, who are otherwise healthy<\/td><\/tr><tr><td>above 500<sup>[2]<\/sup><\/td><td>possible risk of iron build-up<\/td><td>adults who are ill<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"bp-bm-caption wp-block-paragraph\">Source: WHO, guideline on ferritin (2020), table 1 and recommendation 1.3. The limits apply to adults from age 20, including after you turn 60.<sup>[2]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ferritin too low<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A low ferritin means a depleted iron store, but it does not say how severe the deficiency is. Below 15 \u00b5g\/l, the WHO speaks of iron deficiency in an otherwise healthy adult. Between 15 and 30 \u00b5g\/l your value is below the lab's reference range and above the WHO threshold for a deficiency. In the French study above, women with unexplained fatigue and a ferritin below 50 \u00b5g\/l benefited from iron. The researchers write that doctors can consider iron in that group.<sup>[2, 1]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ferritin too high<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A high ferritin does not always mean too much iron. Ferritin also rises with inflammation, an infection, liver disease and obesity. That is why, according to the WHO, ferritin on its own does not prove iron overload: a high value calls for further investigation into the cause. In haemochromatosis, doctors look at a high transferrin saturation together with a high ferritin.<sup>[2, 5]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">One measurement, and which lab<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Labs measure ferritin with different methods, and the results differ from one method to another. That is why it is best to compare a value with an earlier value from the same lab.<sup>[6]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">BioProfile is working on its own zones for each value, from risk to optimal. A doctor reviews those zones before they appear in your result.<\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-wat-het-beinvloedt\">What affects your ferritin<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Food<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Iron is in your food as haem iron and as non-haem iron. Haem iron is found only in meat, fish and chicken; your body absorbs about 25 per cent of it. Non-haem iron is in bread, wholegrain products, pulses, nuts, green vegetables and egg; of that your body absorbs 1 to 10 per cent.<sup>[3]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vitamin C in the same meal improves the absorption of non-haem iron. Phytate in grains and pulses and polyphenols in tea and coffee slow that absorption down. Across the diet as a whole, the Voedingscentrum says you do not need to avoid foods because of that slowing effect.<sup>[3]<\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">With a vegetarian diet the body absorbs on average 10 per cent of the iron, against over 15 per cent with an average diet. Vegetarians sometimes have smaller iron stores, which according to the Voedingscentrum are still sufficient.<sup>[3]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Blood loss<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If you lose blood, you lose iron. That is why women who menstruate are more likely to have a small iron store. Your body itself takes more iron from your food as soon as the store goes down.<sup>[3]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Supplements<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In the French study, ferritin rose after twelve weeks on 80 mg of iron a day by 11.4 \u00b5g\/l more than on a placebo. According to the Voedingscentrum, varied eating gives most people enough iron, and it advises against supplements with iron; anyone who does take one stays below the recommended daily amount. The Voedingscentrum says iron tablets belong only after talking with a doctor, and not with haemochromatosis.<sup>[1, 3]<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Inflammation, infection and illness<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Inflammation, an infection, liver disease and obesity raise ferritin, regardless of your iron store. Inflammation can hide a deficiency that way. That is why the WHO puts the threshold for a deficiency higher when there is inflammation, at 70 \u00b5g\/l.<sup>[2]<\/sup><\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--wash is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-welke-pakketten\">Which BioProfile packages measure ferritin<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ferritin is in all five packages, from BioProfile 31 to BioProfile 150. In every package, iron, transferrin, transferrin saturation and CRP sit beside it, so you read your ferritin in context.<sup>[7]<\/sup><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-3e41869c wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/bioprofile.com\/en\/blood-testing\/\">View the packages<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-waarden-die-erbij-horen\">Values that go with it<\/h2>\n\n\n\n<ul class=\"wp-block-list bp-bm-related\">\n\n<li><a href=\"https:\/\/bioprofile.com\/en\/biomarkers\/hemoglobin\/\">Hemoglobin<\/a>: carries oxygen; anaemia is the most severe form of iron deficiency.<sup>[3]<\/sup><\/li>\n\n\n<li><strong>Iron status<\/strong>: the amount of iron in your blood at the moment of the blood draw.<sup>[8]<\/sup><\/li>\n\n\n<li><strong>Transferrin<\/strong>: the protein that carries iron through your blood.<sup>[8]<\/sup><\/li>\n\n\n<li><strong>Transferrin saturation<\/strong>: how much of that transport is in use; together with ferritin the first step in haemochromatosis.<sup>[5]<\/sup><\/li>\n\n\n<li><strong>hs-CRP<\/strong>: shows whether there is inflammation that is raising your ferritin.<sup>[2]<\/sup><\/li>\n\n<\/ul>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--wash is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-hoe-gemaakt\">How this page was made<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The BioProfile editorial team wrote this page on 28 September 2026 from the sources below, which we read on 28 September 2026 and 29 September 2026. Every number on this page comes from one of those sources, with the number of that source next to it. An expert still has to check this page. After that check, the name of that expert and the date of the check will appear at the top. This page gives explanation, not a diagnosis. Discuss a value outside the range with your GP.<\/p>\n\n<\/div>\n\n\n\n<div class=\"wp-block-group bp-adv-sec bp-adv-sec--disclosure is-layout-flow wp-block-group-is-layout-flow\">\n\n<h2 class=\"wp-block-heading\" id=\"bp-bronnen\">Sources<\/h2>\n\n\n\n<ol class=\"wp-block-list bp-adv-srclist bp-bm-src\">\n\n<li>Vaucher P, Druais PL, Waldvogel S, Favrat B. Effect of iron supplementation on fatigue in nonanemic menstruating women with low ferritin: a randomized controlled trial. CMAJ. 2012;184(11):1247-54. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/22777991\/\" target=\"_blank\" rel=\"noopener\">https:\/\/pubmed.ncbi.nlm.nih.gov\/22777991\/<\/a><\/li>\n\n\n<li>World Health Organization. WHO guideline on use of ferritin concentrations to assess iron status in individuals and populations. Geneva: WHO; 2020. <a href=\"https:\/\/www.who.int\/publications\/i\/item\/9789240000124\" target=\"_blank\" rel=\"noopener\">https:\/\/www.who.int\/publications\/i\/item\/9789240000124<\/a><\/li>\n\n\n<li>Voedingscentrum. IJzer in voeding. Accessed 28 September 2026. <a href=\"https:\/\/www.voedingscentrum.nl\/encyclopedie\/ijzer.aspx\" target=\"_blank\" rel=\"noopener\">https:\/\/www.voedingscentrum.nl\/encyclopedie\/ijzer.aspx<\/a><\/li>\n\n\n<li>Labplusarts, the laboratory BioProfile works with: reference value for the ferritin test (FERR), 30 to 400 \u00b5g\/l, fasting. List of 24 September 2026.<\/li>\n\n\n<li>European Association for the Study of the Liver. EASL Clinical Practice Guidelines on haemochromatosis. J Hepatol. 2022;77(2):479-502. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/35662478\/\" target=\"_blank\" rel=\"noopener\">https:\/\/pubmed.ncbi.nlm.nih.gov\/35662478\/<\/a><\/li>\n\n\n<li>Lemaire B, Frias MA, Golaz O, et al. Ferritin: a biomarker requiring caution in clinical decision. Diagnostics (Basel). 2024;14(4):386. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/38396425\/\" target=\"_blank\" rel=\"noopener\">https:\/\/pubmed.ncbi.nlm.nih.gov\/38396425\/<\/a><\/li>\n\n\n<li>BioProfile, the blood test packages and the values in each package. <a href=\"https:\/\/bioprofile.com\/en\/blood-testing\/\" target=\"_blank\" rel=\"noopener\">https:\/\/bioprofile.com\/en\/blood-testing\/<\/a><\/li>\n\n\n<li>MedlinePlus, U.S. National Library of Medicine. Iron Tests. Accessed on 29 September 2026. <a href=\"https:\/\/medlineplus.gov\/lab-tests\/iron-tests\/\" target=\"_blank\" rel=\"noopener\">https:\/\/medlineplus.gov\/lab-tests\/iron-tests\/<\/a><\/li>\n\n<\/ol>\n\n<\/div>\n\n<\/section>\n\n","protected":false},"excerpt":{"rendered":"<p>Home \u203a Biomarkers \u203a Ferritin Ferritin: what your value says about your iron store In a French study, 198 women aged 18 to 53 with unexplained fatigue, without anaemia and with a ferritin below 50 \u00b5g\/l, were given iron or a placebo for twelve weeks. Their fatigue went down by 48 per cent in the [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"parent":6592,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_yoast_wpseo_title":"Ferritin value: too low or too high? | BioProfile","_yoast_wpseo_metadesc":"What ferritin is, what the WHO guideline says about a value that is too low or too high, what affects your iron stores and which values go with it.","_yoast_wpseo_meta-robots-noindex":"2","_yoast_wpseo_opengraph-image":"","_yoast_wpseo_opengraph-image-id":"","_yoast_wpseo_twitter-image":"","_yoast_wpseo_twitter-image-id":"","inline_featured_image":false,"footnotes":""},"class_list":["post-6622","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ferritin value: too low or too high? | BioProfile<\/title>\n<meta name=\"description\" content=\"What ferritin is, what the WHO guideline says about a value that is too low or too high, what affects your iron stores and which values go with it.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bioprofile.com\/en\/biomarkers\/ferritin\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ferritin value: too low or too high? 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