{"title":"Copper","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BreadcrumbList\",\n  \"itemListElement\": [\n    { \"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/plenthera.com\/\" },\n    { \"@type\": \"ListItem\", \"position\": 2, \"name\": \"Minerals\", \"item\": \"https:\/\/plenthera.com\/collections\/mineralen\" },\n    { \"@type\": \"ListItem\", \"position\": 3, \"name\": \"Copper\", \"item\": \"https:\/\/plenthera.com\/collections\/koper\" }\n  ]\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"CollectionPage\",\n  \"name\": \"Copper at Plenthera\",\n  \"description\": \"Copper as liquid ionic copper (Trace Minerals), in beef liver capsules (Big Food, Real Roots) and in multivitamins (Vitals).\",\n  \"url\": \"https:\/\/plenthera.com\/collections\/koper\",\n  \"inLanguage\": \"en\",\n  \"isPartOf\": { \"@type\": \"WebSite\", \"name\": \"Plenthera\", \"url\": \"https:\/\/plenthera.com\/\" },\n  \"about\": { \"@type\": \"Thing\", \"name\": \"Copper\", \"alternateName\": [\"Cu\", \"Koper\"], \"description\": \"Copper is an essential trace element and part of enzymes involved in iron transport, energy production and connective tissue, among other things.\" }\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\"@type\":\"Question\",\"name\":\"How much copper do I need per day?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"EFSA sets an adequate intake of 1.6 mg per day for adult men and 1.3 mg for women. Labels use 1 mg (RI). The safe upper limit for total intake is 5 mg per day.\"}},\n    {\"@type\":\"Question\",\"name\":\"Do I get enough copper from my diet?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Usually, yes. Copper is found in wholegrains, pulses, nuts, seeds, cacao, shellfish and organ meat such as liver. A deficiency is uncommon with a varied diet.\"}},\n    {\"@type\":\"Question\",\"name\":\"Do I need extra copper if I take zinc?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Not at usual zinc doses. Zinc and copper partly share the same absorption route; copper deficiency has mainly been described with long-term high zinc intake, well above the upper limit of 25 mg per day. If you take a lot of zinc for a longer period, consult your doctor or therapist.\"}},\n    {\"@type\":\"Question\",\"name\":\"Is 3 mg of copper per day safe?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"3 mg is below the upper limit of 5 mg for total intake, but well above the reference intake. Ionic Copper from Trace Minerals is therefore intended for temporary, targeted supplementation in consultation with a doctor or therapist, not for long-term daily use.\"}},\n    {\"@type\":\"Question\",\"name\":\"When should I take copper?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"With or just after a meal. Preferably take high doses of zinc or iron at a different time.\"}},\n    {\"@type\":\"Question\",\"name\":\"Who should be careful with copper?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"People with Wilson's disease or a liver condition should not use copper supplements without consulting their doctor. Also consult your doctor if you are pregnant, breastfeeding or taking medication.\"}}\n  ]\n}\n\u003c\/script\u003e\n\u003carticle\u003e\n\u003cp\u003e\u003cem\u003eWritten by the Plenthera team (orthomolecularly trained). Scientifically reviewed in October 2026. Last updated: 7 October 2026.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eCopper is a trace element that you only need in small amounts and that most people get enough of from their diet. At Plenthera you will find \u003ca href=\"\/en-cz\/collections\/koper\"\u003ecopper\u003c\/a\u003e as liquid ionic copper from Trace Minerals for targeted, temporary supplementation, naturally in beef liver capsules from Big Food and Real Roots, and in small amounts in the Elke Dag multivitamins from Vitals.\u003c\/p\u003e\n\u003cnav aria-label=\"Contents\"\u003e\n\u003ch2\u003eContents\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003ca href=\"#vergelijking\"\u003eWhich copper suits you?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#wat-is-koper\"\u003eWhat is copper?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#efsa-claims\"\u003eCopper and EFSA — what is scientifically recognised?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#zink-koper-balans-wanneer-is-koper-aanvulling-nodig\"\u003eZinc and copper — how does it work?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#vormen\"\u003eCopper at Plenthera and other forms on the market\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#hoe-gebruik\"\u003eHow do you use copper?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#mythes\"\u003eMyths and misconceptions about copper\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#combineren\"\u003eCombining copper with other supplements\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#faq\"\u003eFrequently asked questions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#bronnen\"\u003eSources\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/nav\u003e\n\u003csection\u003e\n\u003ch2 id=\"vergelijking\"\u003eWhich copper suits you?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eCopper per daily dose\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrace Minerals Ionic Copper (at Plenthera)\u003c\/td\u003e\n\u003ctd\u003e3 mg (¼ teaspoon, approx. 25 drops)\u003c\/td\u003e\n\u003ctd\u003eLiquid copper sulphate with ConcenTrace®; for temporary, targeted supplementation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBig Food Runderlever Capsules (at Plenthera)\u003c\/td\u003e\n\u003ctd\u003e0.9 mg (6 capsules)\u003c\/td\u003e\n\u003ctd\u003eOrganic, freeze-dried beef liver; also provides vitamin A, folate and vitamin B12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003ca href=\"\/en-cz\/collections\/multi-vitamines\"\u003eVitals Elke Dag and Elke Dag Platinum\u003c\/a\u003e (at Plenthera)\u003c\/td\u003e\n\u003ctd\u003e0.25 mg\u003c\/td\u003e\n\u003ctd\u003eCopper bisglycinate (TRAACS®) in a complete multi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReal Roots Beef Thyroid \u0026amp; Liver \/ Adrenal \u0026amp; Liver (at Plenthera)\u003c\/td\u003e\n\u003ctd\u003eNot stated\u003c\/td\u003e\n\u003ctd\u003eFreeze-dried organ meat; liver naturally contains copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStand-alone copper bisglycinate or copper gluconate tablets (other forms on the market)\u003c\/td\u003e\n\u003ctd\u003eUsually 1–2 mg\u003c\/td\u003e\n\u003ctd\u003eWe do not currently stock these\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"wat-is-koper\"\u003eWhat is copper?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCopper (Cu) is an essential trace element. It is part of enzymes needed for, among other things, iron transport (ceruloplasmin), energy production in the cell (cytochrome c oxidase), protection against oxidative stress (superoxide dismutase) and the formation of connective tissue and pigment. An adult body contains about 100 mg of copper.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCopper is found in wholegrains, pulses, nuts, seeds, cacao, shellfish and organ meat such as liver. The body regulates its copper balance itself via absorption and excretion in bile. With a varied diet, a deficiency is rare.\u003c\/p\u003e\n\u003cp\u003eEFSA sets an adequate intake of 1.6 mg per day for adult men and 1.3 mg for women. Labels use 1 mg (RI). The safe upper limit for total intake from food and supplements is 5 mg per day.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"efsa-claims\"\u003eCopper and EFSA — what is scientifically recognised?\u003c\/h2\u003e\n\u003cp\u003eThe following health claims for copper are authorised in Regulation (EU) 432\/2012:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCopper contributes to maintenance of normal connective tissues.\u003c\/li\u003e\n\u003cli\u003eCopper contributes to normal energy-yielding metabolism.\u003c\/li\u003e\n\u003cli\u003eCopper contributes to normal functioning of the nervous system.\u003c\/li\u003e\n\u003cli\u003eCopper contributes to normal hair pigmentation.\u003c\/li\u003e\n\u003cli\u003eCopper contributes to normal iron transport in the body.\u003c\/li\u003e\n\u003cli\u003eCopper contributes to normal skin pigmentation.\u003c\/li\u003e\n\u003cli\u003eCopper contributes to the normal function of the immune system.\u003c\/li\u003e\n\u003cli\u003eCopper contributes to the protection of cells from oxidative stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe claims apply at a daily intake that provides at least 15% of the reference intake: 0.15 mg of copper per daily dose. Ionic Copper, the beef liver capsules from Big Food and the Elke Dag multivitamins meet that threshold.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"zink-koper-balans-wanneer-is-koper-aanvulling-nodig\"\u003eZinc and copper — how does it work?\u003c\/h2\u003e\n\u003cp\u003eZinc and copper partly share the same absorption route in the gut. As a result, a lot of zinc over a long period inhibits copper absorption. Copper deficiency caused by zinc has mainly been described with high zinc intake over a long period, well above the safe upper limit of 25 mg of zinc per day. At usual zinc doses, such as in most zinc supplements and multivitamins, extra copper is not needed.\u003c\/p\u003e\n\u003cp\u003eConversely, a lot of copper can depress zinc status. So do not decide on high doses of either yourself, but consult your doctor or therapist about long-term use. Read more about zinc under \u003ca href=\"\/en-cz\/collections\/zinc-zinkoxide\"\u003ezinc\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"vormen\"\u003eCopper at Plenthera and other forms on the market\u003c\/h2\u003e\n\u003ch3\u003eIonic Copper (Trace Minerals) — at Plenthera\u003c\/h3\u003e\n\u003cp\u003eLiquid copper as copper sulphate, supplemented with ConcenTrace® trace minerals from the Great Salt Lake. Per daily dose of ¼ teaspoon (approx. 25 drops, dissolved in water or juice), 3 mg of copper and 15 mg of magnesium; a 59 ml bottle contains about 48 doses. 3 mg is below the upper limit of 5 mg, but well above the reference intake: this product is intended for temporary, targeted supplementation in consultation with a doctor or therapist, not for long-term daily use.\u003c\/p\u003e\n\u003ch3\u003eRunderlever Capsules (Big Food) — at Plenthera\u003c\/h3\u003e\n\u003cp\u003eOrganic, freeze-dried beef liver from grass-fed cattle. Six capsules (3 g of liver) provide 0.9 mg of copper, 150 µg of vitamin A, 38 µg of folate and 11.9 µg of vitamin B12 — a food as the source, not a stand-alone copper dose.\u003c\/p\u003e\n\u003ch3\u003eReal Roots organ capsules — at Plenthera\u003c\/h3\u003e\n\u003cp\u003eBeef Thyroid \u0026amp; Liver and Beef Adrenal \u0026amp; Liver contain freeze-dried organ meat. Liver naturally contains copper; the content is not stated on the label.\u003c\/p\u003e\n\u003ch3\u003eCopper in multivitamins — at Plenthera\u003c\/h3\u003e\n\u003cp\u003eElke Dag and Elke Dag Platinum from Vitals contain 0.25 mg of copper as bisglycinate (TRAACS®), together with zinc and iron. View the \u003ca href=\"\/en-cz\/collections\/multi-vitamines\"\u003emultivitamins\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eOther forms on the market\u003c\/h3\u003e\n\u003cp\u003eStand-alone tablets with copper bisglycinate or copper gluconate (usually 1–2 mg) and combinations of zinc with copper. We do not currently stock these as a stand-alone product.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"hoe-gebruik\"\u003eHow do you use copper?\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eFirst check whether you really need copper: with a varied diet, that is rarely the case.\u003c\/li\u003e\n\u003cli\u003eFollow the dosage on the label and add up the copper from multivitamins and liver capsules.\u003c\/li\u003e\n\u003cli\u003eKeep your total intake below the upper limit of 5 mg per day.\u003c\/li\u003e\n\u003cli\u003eTake copper with or just after a meal and take high doses of zinc or iron at a different time.\u003c\/li\u003e\n\u003cli\u003eWith Wilson's disease, a liver condition, during pregnancy, breastfeeding or when taking medication: consult your doctor first.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"mythes\"\u003eMyths and misconceptions about copper\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMyth 1: 'Everyone needs a copper supplement.'\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIncorrect. Most people get enough copper from their diet. A stand-alone supplement only makes sense in specific situations.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMyth 2: 'More copper is always better.'\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIncorrect. Above the upper limit of 5 mg per day, copper can put a strain on the liver. Stick to the dosage on the label.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMyth 3: 'A copper bracelet also provides copper.'\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThere is no scientific basis for this. The copper your body uses comes from food and supplements.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"combineren\"\u003eCombining copper with other supplements\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-cz\/collections\/zinc-zinkoxide\"\u003eZinc\u003c\/a\u003e: with long-term high doses, pay attention to the balance between zinc and copper.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-cz\/collections\/ijzer\"\u003eIron\u003c\/a\u003e: copper contributes to normal iron transport in the body.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-cz\/collections\/vitamine-c\"\u003eVitamin C\u003c\/a\u003e: vitamin C contributes to normal collagen formation for the normal function of skin; copper contributes to maintenance of normal connective tissues.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-cz\/collections\/multi-vitamines\"\u003eMultivitamins\u003c\/a\u003e: include the copper from these in your total intake.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-cz\/collections\/mineralen\"\u003eMinerals\u003c\/a\u003e: the full range of minerals at a glance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"faq\"\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow much copper do I need per day?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEFSA sets an adequate intake of 1.6 mg per day for adult men and 1.3 mg for women. Labels use 1 mg (RI). The safe upper limit for total intake is 5 mg per day.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I get enough copper from my diet?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsually, yes. Copper is found in wholegrains, pulses, nuts, seeds, cacao, shellfish and organ meat such as liver. A deficiency is uncommon with a varied diet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need extra copper if I take zinc?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNot at usual zinc doses. Zinc and copper partly share the same absorption route; copper deficiency has mainly been described with long-term high zinc intake, well above the upper limit of 25 mg per day. If you take a lot of zinc for a longer period, consult your doctor or therapist.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 3 mg of copper per day safe?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e3 mg is below the upper limit of 5 mg for total intake, but well above the reference intake. Ionic Copper from Trace Minerals is therefore intended for temporary, targeted supplementation in consultation with a doctor or therapist, not for long-term daily use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen should I take copper?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith or just after a meal. Preferably take high doses of zinc or iron at a different time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWho should be careful with copper?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePeople with Wilson's disease or a liver condition should not use copper supplements without consulting their doctor. Also consult your doctor if you are pregnant, breastfeeding or taking medication.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2 id=\"bronnen\"\u003eSources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/eur-lex.europa.eu\/legal-content\/NL\/TXT\/?uri=CELEX:02012R0432-20210517\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRegulation (EU) 432\/2012\u003c\/a\u003e — authorised health claims for copper.\u003c\/li\u003e\n\u003cli\u003eEFSA NDA Panel (2015). Scientific Opinion on Dietary Reference Values for copper. EFSA Journal 13(10):4253.\u003c\/li\u003e\n\u003cli\u003eEFSA Scientific Committee (2023). Re-evaluation of the existing health-based guidance values for copper. EFSA Journal 21(1):7728.\u003c\/li\u003e\n\u003cli\u003eCollins JF, Klevay LM (2011). Copper. Adv Nutr 2(6):520–522.\u003c\/li\u003e\n\u003cli\u003eDuncan A et al. (2015). Zinc-induced copper deficiency: a review. Ann Clin Biochem 52(Pt 2):213–221.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eDisclaimer:\u003c\/strong\u003e This text is for information purposes only and does not replace medical advice. Copper is a food supplement, not a medicine. If in doubt or if you take medication, we recommend consulting a doctor or orthomolecular therapist first.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/article\u003e","products":[{"product_id":"trace-minerals-liquid-copper-koper-3mg-59ml","title":"Ionic Copper – Liquid Copper – 59 ml","description":"\u003cp\u003e\u003cspan\u003eTrace Minerals Ionic Copper is a concentrated liquid copper formula in a 59 ml dropper bottle — with 3 mg of copper per serving from copper sulphate, supplemented with trace elements from the ConcenTrace® mineral complex from the Great Salt Lake in Utah. Add a quarter teaspoon (1.25 ml or about 25 drops) to a glass of water or juice; the taste is slightly metallic. Bottle for approximately 48 servings. Not for long-term use without advice — copper supplementation above the RDA is generally only recommended in cases of a proven deficiency.\u003c\/span\u003e\u003c\/p\u003e","brand":"Trace Minerals","offers":[{"title":"Default Title","offer_id":56769629225305,"sku":"TRC3417","price":21.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/6127\/3177\/files\/trace-minerals-ionic-copper-koper-3mg-59-ml.jpg?v=1774527674"},{"product_id":"real-roots-bijnier-capsules","title":"Beef Adrenal \u0026 Liver – Freeze-Dried – 90 Capsules of 500 mg","description":"\u003cp\u003eFreeze-dried beef adrenal (30%) with beef liver (70%) in capsule form — from grass-fed Dutch cattle. Real Roots Beef Adrenal \u0026amp; Liver provides per daily dose of 1 capsule: vitamin B12 (70% RI), vitamin A (34% RI) and copper (17% RI) — all three above the EFSA threshold for claims. 90 capsules of 500 mg per jar, enough for 90 daily doses of 1 capsule. Free from all 14 EU allergens. Not suitable for vegetarians or vegans.\u003c\/p\u003e","brand":"Real Roots","offers":[{"title":"Default Title","offer_id":58712209916249,"sku":"RR0007","price":37.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/6127\/3177\/files\/bijnier-capsules-5661387_58fe731c-bd09-4399-b0d6-6641a29558b2.png?v=1786459979"},{"product_id":"real-roots-schildklier-capsules","title":"Beef Thyroid \u0026 Liver – Freeze-Dried – 90 Capsules of 500 mg","description":"\u003cp\u003eFreeze-dried beef thyroid (10%) with beef liver (90%) in capsule form — from grass-fed Dutch cattle. Real Roots Beef Thyroid \u0026amp; Liver provides per daily dose of 2 capsules: vitamin B12 (180% RI), vitamin A (88% RI) and copper (45% RI)*. Thyroid tissue naturally contains T3, T4, thyroglobulin and iodine — do not use with a thyroid condition or thyroid medication without consulting a doctor. 90 capsules of 500 mg per jar, enough for 45 daily doses of 2 capsules.\u003c\/p\u003e","brand":"Real Roots","offers":[{"title":"Default Title","offer_id":58712213684569,"sku":"RR0008","price":29.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/6127\/3177\/files\/SchildklierVoor.png?v=1786458527"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/6127\/3177\/collections\/trace-minerals-ionic-copper-koper-3mg-59-ml-2.jpg?v=1776086854","url":"https:\/\/www.plenthera.com\/en-cz\/collections\/koper.oembed","provider":"Plenthera","version":"1.0","type":"link"}