{"id":9126,"date":"2024-10-10T11:04:25","date_gmt":"2024-10-10T08:04:25","guid":{"rendered":"https:\/\/medilab.km.ua\/?p=9126"},"modified":"2026-06-18T14:48:15","modified_gmt":"2026-06-18T11:48:15","slug":"is-biotin-analysis-necessary-and-when-is-it-worth-it","status":"publish","type":"post","link":"https:\/\/medilab.km.ua\/en\/is-biotin-analysis-necessary-and-when-is-it-worth-it\/","title":{"rendered":"Biotin test: why is it needed and when should it be taken?"},"content":{"rendered":"<h2 class=\"\" data-start=\"71\" data-end=\"128\"><strong data-start=\"74\" data-end=\"128\">What is biotin and what role does it play in the body?<\/strong><\/h2>\n<p class=\"\" data-start=\"130\" data-end=\"432\">Biotin, also known as vitamin B7 or vitamin H, is a water-soluble B vitamin. Its main function is to participate in the metabolism of fats, proteins, and carbohydrates, as well as to maintain healthy skin, hair, nails, and the nervous system. Biotin acts as a coenzyme for a number of enzymes that regulate metabolic processes.<\/p>\n<p class=\"\" data-start=\"434\" data-end=\"694\">Biotin does not accumulate in large quantities in the body, therefore <strong data-start=\"497\" data-end=\"563\">regular intake with food or supplements is of great importance<\/strong>. Biotin deficiency is rare, but in certain situations the need for it increases or its absorption is impaired.<\/p>\n<h2 class=\"\" data-start=\"696\" data-end=\"741\"><strong data-start=\"699\" data-end=\"741\">When to take a biotin test<\/strong><\/h2>\n<p class=\"\" data-start=\"743\" data-end=\"974\">A biotin blood test is not routine and is usually ordered in narrow clinical situations. It is recommended when a deficiency or excess of the vitamin is suspected, or when taking biotin supplements for a long time.<\/p>\n<h3 class=\"\" data-start=\"976\" data-end=\"1009\">Main indications for analysis:<\/h3>\n<ul data-start=\"1011\" data-end=\"1389\">\n<li class=\"\" data-start=\"1011\" data-end=\"1050\">\n<p class=\"\" data-start=\"1013\" data-end=\"1050\">hair loss without an apparent cause<\/p>\n<\/li>\n<li class=\"\" data-start=\"1051\" data-end=\"1070\">\n<p class=\"\" data-start=\"1053\" data-end=\"1070\">brittle nails<\/p>\n<\/li>\n<li class=\"\" data-start=\"1071\" data-end=\"1129\">\n<p class=\"\" data-start=\"1073\" data-end=\"1129\">skin rash (especially around the eyes, nose, mouth)<\/p>\n<\/li>\n<li class=\"\" data-start=\"1130\" data-end=\"1158\">\n<p class=\"\" data-start=\"1132\" data-end=\"1158\">chronic fatigue, lethargy<\/p>\n<\/li>\n<li class=\"\" data-start=\"1159\" data-end=\"1181\">\n<p class=\"\" data-start=\"1161\" data-end=\"1181\">depressive disorders<\/p>\n<\/li>\n<li class=\"\" data-start=\"1182\" data-end=\"1211\">\n<p class=\"\" data-start=\"1184\" data-end=\"1211\">developmental delay in children<\/p>\n<\/li>\n<li class=\"\" data-start=\"1212\" data-end=\"1273\">\n<p class=\"\" data-start=\"1214\" data-end=\"1273\"><a class=\"wpil_keyword_link\" href=\"https:\/\/medilab.km.ua\/en\/metabolic-disorders-that-disrupt-speech-and-what-to-do-about-it\/\"   title=\"Metabolic disorders: how metabolism is disrupted and what to do about it\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"161\">metabolic disorders<\/a>, particularly in hereditary enzyme diseases<\/p>\n<\/li>\n<li class=\"\" data-start=\"1274\" data-end=\"1323\">\n<p class=\"\" data-start=\"1276\" data-end=\"1323\">suspicion of <strong data-start=\"1287\" data-end=\"1302\">biotinidosis<\/strong> (hereditary disease)<\/p>\n<\/li>\n<li class=\"\" data-start=\"1324\" data-end=\"1389\">\n<p class=\"\" data-start=\"1326\" data-end=\"1389\">monitoring levels when using high doses of biotin in therapy<\/p>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9128\" src=\"https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/04\/female-researcher-laboratory-with-test-tubes-vaccine-bottle-1.jpg\" alt=\"blood sample for vitamin analysis\" width=\"1200\" height=\"857\" srcset=\"https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/04\/female-researcher-laboratory-with-test-tubes-vaccine-bottle-1.jpg 1200w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/04\/female-researcher-laboratory-with-test-tubes-vaccine-bottle-1-150x107.jpg 150w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/04\/female-researcher-laboratory-with-test-tubes-vaccine-bottle-1-600x429.jpg 600w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/04\/female-researcher-laboratory-with-test-tubes-vaccine-bottle-1-300x214.jpg 300w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/04\/female-researcher-laboratory-with-test-tubes-vaccine-bottle-1-1024x731.jpg 1024w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/04\/female-researcher-laboratory-with-test-tubes-vaccine-bottle-1-768x548.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h2 class=\"\" data-start=\"1391\" data-end=\"1432\"><strong data-start=\"1394\" data-end=\"1432\">What can affect biotin levels?<\/strong><\/h2>\n<div class=\"pointer-events-none relative left-[50%] flex w-[100cqw] translate-x-[-50%] justify-center *:pointer-events-auto\">\n<div class=\"tableContainer horzScrollShadows\">\n<div class=\"table-scroll\"><table class=\"min-w-full\" data-start=\"1434\" data-end=\"1979\">\n<thead data-start=\"1434\" data-end=\"1507\">\n<tr data-start=\"1434\" data-end=\"1507\">\n<th data-start=\"1434\" data-end=\"1474\"><strong data-start=\"1436\" data-end=\"1446\">Factor<\/strong><\/th>\n<th data-start=\"1474\" data-end=\"1507\"><strong data-start=\"1476\" data-end=\"1495\">Impact on the level<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1581\" data-end=\"1979\">\n<tr data-start=\"1581\" data-end=\"1668\">\n<td class=\"\" data-start=\"1581\" data-end=\"1620\">Taking high doses of biotin (&gt;5 mg)<\/td>\n<td class=\"min-w-[calc(var(--thread-content-max-width)\/3)]\" data-start=\"1620\" data-end=\"1668\">May distort the results of some tests<\/td>\n<\/tr>\n<tr data-start=\"1669\" data-end=\"1742\">\n<td class=\"\" data-start=\"1669\" data-end=\"1709\">Pregnancy<\/td>\n<td class=\"\" data-start=\"1709\" data-end=\"1742\">Increased need for biotin<\/td>\n<\/tr>\n<tr data-start=\"1743\" data-end=\"1833\">\n<td class=\"\" data-start=\"1743\" data-end=\"1782\">Long-term use of antibiotics<\/td>\n<td class=\"min-w-[calc(var(--thread-content-max-width)\/3)]\" data-start=\"1782\" data-end=\"1833\">Disturbances of intestinal microflora and biotin synthesis<\/td>\n<\/tr>\n<tr data-start=\"1834\" data-end=\"1906\">\n<td class=\"\" data-start=\"1834\" data-end=\"1873\">Diet with B vitamins deficiency<\/td>\n<td class=\"\" data-start=\"1873\" data-end=\"1906\">Decreased biotin levels<\/td>\n<\/tr>\n<tr data-start=\"1907\" data-end=\"1979\">\n<td class=\"\" data-start=\"1907\" data-end=\"1946\">Inherited enzyme defects<\/td>\n<td class=\"\" data-start=\"1946\" data-end=\"1979\">Metabolic disorders<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n<\/div>\n<h2 class=\"\" data-start=\"1981\" data-end=\"2017\"><strong data-start=\"1984\" data-end=\"2017\">How is the biotin test performed?<\/strong><\/h2>\n<p class=\"\" data-start=\"2019\" data-end=\"2089\">The study is performed using a venous blood sample. Before the analysis, it is advisable to:<\/p>\n<ul data-start=\"2091\" data-end=\"2233\">\n<li class=\"\" data-start=\"2091\" data-end=\"2151\">\n<p class=\"\" data-start=\"2093\" data-end=\"2151\">do not take biotin supplements for at least <strong data-start=\"2137\" data-end=\"2149\">48 hours<\/strong><\/p>\n<\/li>\n<li class=\"\" data-start=\"2152\" data-end=\"2179\">\n<p class=\"\" data-start=\"2154\" data-end=\"2179\">to donate blood on an empty stomach<\/p>\n<\/li>\n<li class=\"\" data-start=\"2180\" data-end=\"2233\">\n<p class=\"\" data-start=\"2182\" data-end=\"2233\">inform the doctor about all medications you are taking<\/p>\n<\/li>\n<\/ul>\n<h2 class=\"\" data-start=\"2235\" data-end=\"2263\"><strong data-start=\"2238\" data-end=\"2263\">Biotin levels in the blood<\/strong><\/h2>\n<p class=\"\" data-start=\"2265\" data-end=\"2358\">Normal serum biotin levels vary by laboratory, but are typically:<\/p>\n<p class=\"\" data-start=\"2360\" data-end=\"2401\"><strong data-start=\"2360\" data-end=\"2401\">300\u20131000 pg\/mL (picograms per milliliter)<\/strong><\/p>\n<p class=\"\" data-start=\"2403\" data-end=\"2532\">A decrease in the level indicates <strong data-start=\"2428\" data-end=\"2445\"><a class=\"wpil_keyword_link\" href=\"https:\/\/medilab.km.ua\/en\/hypovitaminosis-is-a-deficiency-that-is-detrimental-to-health\/\"   title=\"Hypovitaminosis: a hidden deficiency that destroys health\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"162\">hypovitaminosis<\/a><\/strong>, while excessively high levels may be the result of excessive supplementation.<\/p>\n<p class=\"\" data-start=\"2534\" data-end=\"2792\"><strong data-start=\"2534\" data-end=\"2546\">Example:<\/strong><br data-start=\"2546\" data-end=\"2549\" \/>A woman after giving birth complains of significant hair loss, weakness, and low mood. A blood test shows a biotin level of 210 pg\/ml. After adjusting her diet and prescribing a supplement for 2 months, the symptoms disappear and the vitamin level returns to normal.<\/p>\n<h2 class=\"\" data-start=\"2794\" data-end=\"2836\"><strong data-start=\"2797\" data-end=\"2836\">Why it&#039;s important not to overdo biotin<\/strong><\/h2>\n<p class=\"\" data-start=\"2838\" data-end=\"3120\">Despite its reputation as a &quot;beauty vitamin,&quot;, <strong data-start=\"2880\" data-end=\"2939\">high doses of biotin may interfere with laboratory tests<\/strong> \u2014 in particular, hormonal tests (thyroid hormones, troponin test), simulating pathology. Because of this, the American FDA warns about the risks of excessive intake of supplements without indications.<\/p>\n<p data-start=\"2838\" data-end=\"3120\">Biotin level monitoring is not part of a general medical examination, but in a number of cases this indicator helps to find out the cause of deterioration in well-being, skin or hair condition. Biotin analysis is a step towards a personalized approach to diagnosing deficiency conditions.<\/p>","protected":false},"excerpt":{"rendered":"<p>What is biotin and what role does it play in the body? Biotin, also known as vitamin B7 or vitamin H, is<\/p>","protected":false},"author":627,"featured_media":9127,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[237],"tags":[],"class_list":["post-9126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vitaminy-ta-mikroelementy"],"_links":{"self":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts\/9126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/users\/627"}],"replies":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/comments?post=9126"}],"version-history":[{"count":0,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts\/9126\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/media\/9127"}],"wp:attachment":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/media?parent=9126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/categories?post=9126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/tags?post=9126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}