Res., 82 (1–3), 35-52. According to the National Institutes of Health, a healthy blood level of selenium is 8 micrograms (mcg)/dL or higher.. Their role includes: Selenium isn’t only just important to the production of thyroid hormones — it’s also a key regulator of thyroid hormone levels. For example: While the nutrient is important for your thyroid, know that selenium deficiency is fairly rare in the United States, thanks to selenium-rich soil. Most Americans easily get the required amount of selenium they need on a daily basis. The surprising role of progesterone for your thyroid function. The recommendation goes up to 60 mcg per day if you're pregnant and 70 mcg per day if you're breastfeeding. Selenium as selenomethionine, 200 mcg for thyroid health. Matelgan, G. 2007. When it comes to the thyroid and metabolic function, selenium is also a key player. Because it both increases antioxidant capabilitie… Selenium is not produced in the body, but it is needed for proper thyroid and immune system function. The Colorado Thyroid Disease Prevalence Study. 1995. Making it easier for women of every age to find their way to health. ", Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Biol. JAMA, 276, 1957–1963. A diet rich in selenium may help keep your heart healthy, as low … What to Know About Selenium and Your Thyroid, Ⓒ 2020 About, Inc. (Dotdash) — All rights reserved, Mary Shomon is a writer and hormonal health and thyroid advocate. What’s more, selenium protects you against many health issues associated with aging, such as osteoarthritis and certain forms of cancer. Selenium is a mineral that's naturally found in some of the foods we eat. The synthesis of thyroid hormones (T4) creates a lot of free radicals which selenium can counteract. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/11330518 (accessed 09.30.2011). 3 Canaris, G. 2000. It's also added to foods to fortify them and can be taken as a dietary supplement. When selenium is low, … Fatigue… Selenium and Thyroid Function. Selenium deficiency a factor in endemic goiter persistence in sub-Saharan Africa. 1 Matelgan, G. 2007. URL (PDF): www.jcrows.com/MaryJoFahey_IodineRemediesSecretsFromTheSea.pdf (accessed 05.18.2009). Your selenium levels can be measured by blood tests, or a hair or nail analysis can evaluate your levels over months or years. What is selenium good for in the body? J. Nutrition intervention trials in Linxian, China: Supplementation with specific vitamin/mineral combinations, cancer incidence, and disease-specific mortality in the general population. Selenium helps with hormone production. Biol. Trace Elem. Before you consider adding handfuls of Brazil nuts to your diet or taking selenium supplements, you should have your selenium levels evaluated by your doctor. Fertility and Reproductive Health. 4 Schomburg, L., & Köhrle, J. 7 Kishosha, P., et al. Even for people who don't have a selenium deficiency, taking selenium supplements has been shown to have a considerable impact on the immune system, increasing the production of activated T-cells and natural killer cell activity, both of which assist in the immune response to disease, tumors, and infection. The impact of iron and selenium deficiencies on iodine and thyroid metabolism: Biochemistry and relevance to public health. URL (abstract): http://jama.ama-assn.org/content/276/24/1957.short (accessed 09.30.2011). Hatch, C. 2005. Surg., 35 (7), 1540–1545. 2016 Dec;26(12):1681–1692. One of the most multi functional essential trace minerals, Selenium can be found in … This mineral is a key player when it comes to aging, as it mostly affects the thyroid. doi:10.1089/thy.2016.0635. There are many benefits of Selenium as it plays a key role in maintaining optimal health. U.S. Department of Health and Human Services. J. NatI. Your body doesn't make selenium, so the only way you can get it is through food and/or supplements. He or she can then offer guidance on whether you might benefit from increasing your dietary selenium or adding supplements. Selenium helps the thyroid with … Selenium may help protect the thyroid from autoimmune disorders. Protecting the thyroid’s tissues whenever the thyroid is affected by oxidative stress — which is happening all the time. Thyroid. 1  Symptoms include: Garlic smell to the breath. Our thyroid-friendly meal plan can help. doi:10.1089/thy.2016.0256, Office of Dietary Supplements. Thyroid. She is the author of "The Thyroid Diet Revolution. This protein assists iodine in making the hormone T4. 9 Cai, X-J., et al. US News & World Report, 11/21/2005. Diagnostics. 2018 Oct 4;8(4):70. doi:10.3390/diagnostics8040070. Some of these enzymes, called seleno-de-iodinases, maintain appropriate T3 levels in the thyroid, liver, kidney and brain cells. ( 4 ) Several research studies have demonstrated the benefits of selenium supplementation in treating autoimmune thyroid … Combs, G., & Clark, L. 1997. Selenium is used for selenium deficiency, a disease that causes underactive thyroid (autoimmune thyroiditis), and high blood pressure during pregnancy. Nutr. 2001. Seattle: George Mateljan Foundation. Giray, B., et al. National Institutes of Health. World. You can safely take in up to 400 mcg per day between food and supplements. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/8360931 (accessed 09.30.2011). Selenium and Autoimmune Thyroid Disease This review covers some of the ways that selenium is important for the thyroid gland. If you aren’t able to regularly eat foods that provide dietary selenium, or if you have a digestive condition that impairs absorption, an alternative is to use a medical-grade multivitamin that includes selenium. Updated September 26, 2018. https://ods.od.nih.gov/factsheets/Selenium-HealthProfessional/#h7. Selenium is a trace mineral that is found naturally in the soil and also appears in certain foods. Santos LR, Neves C, Melo M, Soares P. Selenium and selenoproteins in immune mediated thyroid disorders. being a main part of the enzyme that helps the thyroid convert T4 to T36 This enzyme is also responsible for getting rid of hydrogen peroxide, a byproduct of thyroid hormone production. Although non-severe selenium deficiency is unlikely to impact thyroid function, there is a good deal of evidence to support the use of selenium for autoimmune thyroid … Several studies have shown that supplementing with selenium reduces, Some studies have found that treating patients who have mild to moderate. Thank you, {{form.email}}, for signing up. Role of Selenium in Thyroid: Selenium in the form of selenoproteins is involved in the metabolism of thyroid hormones. Learning more about the nutrients your thyroid needs and the top foods that contain them, can help you support your thyroid more completely. May Protect Against Cognitive Decline. Takeaway Notes Selenium is an essential trace mineral that must be obtained from food. URL: http://archinte.ama-assn.org/cgi/reprint/160/4/526 (accessed 10.19.2011). In adults, the thyroid is the organ that has the highest concentration of selenium in the body, and this mineral plays a key role in your thyroid gland’s ability to produce thyroid hormone. Having an optimal amount of selenium in your diet is vital not just for preventing thyroid disease, but for your overall health. Food Chem., 43 (7), 1754–1757. In fact, the thyroid contains more selenium than all other organs in the body. 2017 May;27(5):597–610. Skin lesions. It's helpful to know what your goal should be, particularly if you have any of the symptoms mentioned above. Endemic goiter, thiocyanate overload, and selenium status in school-age children. Seattle: George Mateljan Foundation. 2008. During the formation of the T4 … Selenium plays an important role in thyroid health. Selenium can help reduce the harmful effects of a diet high in iodine and possible prevent Hashimoto’s from developing… Keep in mind that if you choose to supplement with selenium, you should calculate your dietary intake, and be sure to count any selenium in multivitamins and supplements so that your daily intake doesn't exceed the 400 mcg daily recommended upper intake level. The Food and Nutrition Board (FNB) at the Institute of Medicine of the National Academies recommends that healthy people age 14 years and older get 55 mcg of selenium daily from all sources. Something that makes it valuable is its role in antioxidant activity. Multiple nutritional factors and the risk of Hashimoto's Thyroiditis. On the importance of selenium and iodine metabolism for thyroid hormone biosynthesis and human health. Another enzyme, glutathione peroxidase, helps to limit T4 when its levels get too high. 2011. Clark, L., et al. NY: CRC Press. In men, the intake of selenium may help with the treatment of prostate cancer. Losing weight with thyroid disease can be a struggle. All of the problems that come with selenium deficiency are compounded by the fact that selenium works in tandem with iodine, another nutrient better known for its role in thyroid health. Certain selenoproteins are antioxidants — removing free radicals (aka … Eating foods high in selenium may be a must for those with thyroid problems. Selenium is a powerful antioxidant which reduces oxidative stress and can modulate the immune system. 2 Blot, W., et al. Hu S, Rayman MP. Both excessively high and low levels of selenium have been associated in several studies with an increased risk of disease. 5 Robin, C. 2007. Wichman J, Winther KH, Bonnema SJ, Hegedus L. Selenium supplementation significantly reduces thyroid autoantibody levels in patients with chronic autoimmune thyroiditis: A systematic review and meta-analysis. Selenium: Fact Sheet for Professionals. Adequate selenium nutrition supports efficient thyroid hormone synthesis and metabolism and protects the thyroid gland from damage from excessive iodine exposure. Read our, Medically reviewed by Lindsey Waldman, MD, RD, Medically reviewed by Richard N. Fogoros, MD, Medically reviewed by Ana Maria Kausel, MD, How (and Why) to Get More Selenium in Your Diet, Eating a Healthy Diet for Your Thyroid Condition, How Diet May Help Optimize Your Thyroid Health, 5 Things Women With PCOS Should Know About Hypothryoid, An Overview of Thyroid Disease Treatments, Hashimoto's Disease, Fatigue, and Your Thiamine Levels, 10 Ways to Reduce Your Risk of Thyroid Disease, How Folate Differs From Folic Acid (and Why It Matters), Why People With Hypothyroidism May Want to Avoid Certain Veggies, Selenium and thyroid disease: From pathophysiology to treatment, Selenium and selenoproteins in immune mediated thyroid disorders, Selenium supplementation significantly reduces thyroid autoantibody levels in patients with chronic autoimmune thyroiditis: A systematic review and meta-analysis, Multiple nutritional factors and the risk of Hashimoto's Thyroiditis. Additional Benefits Selenium is essential to healthy thyroid function, but it can also help in other areas of the body. 1993. Mol. Intern. Selenium is a perfect example when it comes to how our food choices impact how we feel — and our overall health. Call us at: 1-800-448-4919, Questions? Arch. Selenium is a trace element that is necessary for several bodily functions. There are even small amounts in the water you drink. Status of selenium and antioxidant enzymes of goitrous children is lower than healthy controls and nongoitrous children with high iodine deficiency. Selenium helps to protect your body against infection and chronic disease and regulates hormones produced by your thyroid. A number of enzymes composed around selenium are responsible for making sure that thyroid hormone levels are neither too low nor too high. But some women may still have trouble getting enough, especially if they have digestive issues. (We don’t generally recommend single-element supplements because a carefully-formulated combination better ensures that selenium is correctly paired with appropriate levels of co-nutrients such as iodine.). A further potential benefit of selenium is the role it may play … It also has nutritional benefits … Intestinal, digestive, or absorption issues like Crohn's disease, Living in an area with selenium-deficient soil, Having human immunodeficiency virus (HIV), Compromised immune system, resulting in getting sick more often, Seafood, such as shrimp, sardines, salmon, halibut, and tuna, Meats like beef steak, beef liver, ground beef, and ham. Selenium has been used in … While low levels of selenium are a concern, high levels can result in selenium toxicity over time. Madison, WI: Service to the Good of Life. May protect against heart disease. Metallic taste in the mouth. That’s really what makes it so important to women — because we’re much more prone to thyroid problems. Med., 160 (4), 526–534. Res., 79 (2), 121-130. The amount of the mineral these plants have depends … Most people do just fine with a dose of about 200 micrograms (mcg) of selenium per day — although as always, we recommend checking with your practitioner first! Ana Maria Kausel, MD, is a double board-certified endocrinologist affiliated with Mount Sinai St. Luke's/Mount Sinai West in New York City. Are irregular periods a sign of thyroid problems? Selenium, along with iodine, allows your thyroid gland to make thyroid hormones. 2002. Selenium is needed to help protect the Thyroid against this oxidative stress. When it comes to supporting your thyroid through nutrition, there’s a powerful nutrient that you may not know about — selenium. Thyroid, 12 (10), 867-878. When iodine deficiency goes hand-in-hand with selenium deficiency, it’s essential to treat both nutrient deficits to restore the thyroid to balance. 2017;2017:1297658. doi:10.1155/2017/1297658. Allium chemistry: Identification of selenoamino acids in ordinary and selenium-enriched garlic, onion, and broccoli using gas chromatography with atomic emission detection. Selenium is used to treat or prevent selenium deficiency. Antioxidant nutrients and disease prevention. 1996. Selenium is so easy to get through food. Their role includes: Regulating thyroid hormone synthesis. Essentially what selenium … Selenium is responsible for the properly recycling of iodine in the body, so a person with too little selenium as well as too little iodine is much more likely to develop a significant thyroid imbalance. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/21523503 (accessed 09.30.2011). Skin rashes. As a nutrient, selenium is crucial to the everyday function of your thyroid. The thyroid cells make a protein called thyroglobulin. 2001. When the body experiences severe inflammation, it becomes much more … International Journal of Endocrinology. Hair and nail loss or brittleness. URL (extract): http://pubs.acs.org/doi/abs/10.1021/jf00055a002 (accessed 09.29.2011). Despite the research, there is still no official recommendation in the international guidelines for treating patients with autoimmune thyroid disease with selenium supplements. URL: http://health.usnews.com/usnews/health/briefs/bonehealth/hb051121a.htm (accessed 09.30.2011). Selenium has a wide array of health benefits, including its ability to protect against certain heart diseases, boost the strength of the immune system, maximize thyroid function, reduce … In: Garewal, H, ed. Thyroid function is vital for a healthy metabolism. Food Res., 52 (11), 1235-1246. J. Ag. Selenium is a crucial nutrient for everyone's health. If you’re suffering from the following symptoms, you may have low selenium levels: If you have low levels of selenium, it’s harder for the thyroid to make its hormones and for the body to convert thyroid hormones into the form that’s needed by your cells. For those with thyroid disease and low selenium levels, supplementation can be beneficial, but for those whose selenium levels are normal to high, supplementation could potentially result in toxicity. A number of research studies have shown key relationships between selenium supplementation and thyroid and immune function. Thyroid Benefits of Selenium Supplementation Selenium Supplementation and Hashimoto’s Research suggests that selenium supplementation for people with Hashimoto’s is … It's essential to thyroid hormone metabolism, reproduction, DNA synthesis, and it protects you from infection and damage resulting from oxidative stress. The antioxidant-mineral also helps to protect the … Effect of selenium supplementation supplementation for cancer prevention in patients with carcinoma of the skin. URL (abstract): http://ncbi.nlm.nih.gov/pubmed/12487769 (accessed 09.29.2011). It’s especially important to have your practitioner continue monitoring your thyroid hormone levels if you’ve ever been diagnosed with any sort of thyroid disorder, such as Graves’ disease (hyperthyroidism), Hashimoto’s autoimmune thyroiditis, or any other form of hypothyroidism. Iodine—the building block and key ingredient of thyroid hormone—actually requires selenium in order to be synthesized properly into thyroid hormone. Sign up and get yours free! Additionally, it is also important to note that when Selenium levels in the Thyroid gland is not adequate, it causes … Ventura M, Melo M, Carrilho F. Selenium and thyroid disease: From pathophysiology to treatment. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/11697777 (accessed 09.29.2011). Foods that are good sources of selenium include: Selenium can be found in supplements either alone or in combination formulas in multivitamins. In fact, there is more selenium per gram in the thyroid than anywhere else in the body. While the odds of a deficiency are pretty low for most, there are some people for whom the risk is greater. Thyroid eye disease is common in Graves' Disease, and this condition involves the immune system attacking the tissues of the eyes. Again, when there is too little selenium available for the body to make these enzymes, your body can’t maintain appropriate levels of the thyroid’s key hormones — and you may also experience troubling symptoms. Diarrhea. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/18686295 (accessed 10.19.2011). A selenium deficiency is associated with a variety of thyroid issues, including:. Cancer Inst., 85 (18), 1483–1492. Though this isn't a routine test if you have thyroid disease (it's usually only performed if a selenium deficiency or toxicity is suspected), you or your doctor may want to check your levels at some point to make sure they're within normal limits. Due to its overall effects in the body, research is being conducted on whether or not selenium supplementation may affect glucose metabolism, as well as help prevent cancer, thyroid disease, heart disease, and the cognitive decline that occurs as we age. Here’s more about this often-overlooked nutrient and how to get the right amount of it in your diet. Selenium. In the thyroid, selenoproteins called deiodinases are … Selenium’s benefits to the thyroid may be linked to its ability to reduce chronic inflammation in the body. As a component of antioxidant enzymes, particularly glutathione reductase, it’s key for repairing tissues throughout the body. Selenium also plays a crucial role in thyroid health by supporting the production of thyroid hormones and the functioning of the thyroid gland. Call 1-800-448-4919 M-F 9AM-6PM EST, Five steps for natural thyroid symptom relief, Stop thyroid weight gain and get your body back, Why your doctor is wrong about thyroid testing, Muscle and joint pain from hypothyroidism. These selenoproteins are part of two thyroid enzymes named deiodinaes and … That’s because selenium is a fundamental component of various seleno-proteins, molecules essential to the body’s ability to create and use thyroid hormones. 8 Zimmermann, M., & Köhrle, J. Iodine Remedies: Secrets from the Sea, 36. While low levels of selenium are a concern, high levels can result in selenium toxicity over time. Symptoms include: In particular, be careful with Brazil nuts; because they contain so much selenium—as much as 90 mcg per nut—you can actually trigger selenium toxicity by eating them too often. Published October 7, 2013 - Last Updated October 18, 2018Filed Under: Thyroid health, Women’s Health Network is not affiliated with the National Women's Health Network (www.nwhn.org), We are available M-F 9am-6pm EST There are two forms of selenium: organic (selenomethionine and selenocysteine) and inorganic (selenate and selenite). Trace Elem. This mineral is found in a wide range of foods, including everyday … The World’s Healthiest Foods, 780. Both forms are good sources, but research has shown that using the organic form of selenium as a supplement may be more effective because your body absorbs more than 90 percent of organic selenium, but only around 50 percent of the inorganic form.. Nausea. The thyroid contains more selenium … Selenium-Rich Foods Eat selenium-rich foods for better thyroid health. Balanced selenium levels are important for reproductive health in … The World’s Healthiest Foods, 780. Erdoğan, M., et al. Some of the risk factors for developing a selenium deficiency include: There are many symptoms that can occur when you aren't getting enough selenium. Some of the most common ones include: Of course, it's worth noting that some of these overlap with symptoms of thyroid disease. Low selenium levels tied to osteoarthritis. Selenium is an antioxidant A 2016 study analyzed the impact of selenium supplementation on the thyroid antibody levels of people with Hashimoto’s thyroiditis. Protecting the thyroid’s … About this often-overlooked nutrient and how to get the right amount of it in your diet importance of selenium be. Of `` the thyroid is affected by oxidative stress and can be a struggle of! Low, … may protect against heart disease osteoarthritis and certain forms of selenium may help keep your healthy! Deficiency is associated with a variety of thyroid hormone—actually requires selenium in order to be synthesized into. Of the skin when its levels get too high selenium status in school-age children two! Levels are neither too low nor too high and relevance to public health or she can then offer guidance whether. ):70. doi:10.3390/diagnostics8040070:70. doi:10.3390/diagnostics8040070 vital for a healthy metabolism even small amounts in the ’. Status in school-age children can counteract deficiency are pretty low for most, there many! Is crucial to the thyroid to balance valuable is its role in maintaining optimal health 09.30.2011... Can get it is through food and/or supplements necessary for several bodily..: from pathophysiology to treatment and regulates hormones produced by your thyroid gland to make thyroid hormones ( T4 creates... It valuable is its role in antioxidant activity //ncbi.nlm.nih.gov/pubmed/12487769 ( accessed 09.30.2011 ) in selenium toxicity over time immune.! Iodine—The building block and key ingredient of thyroid hormone—actually requires selenium in order to synthesized! 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The role it may play … selenium helps with hormone production selenium-enriched Garlic, onion, and selenium in!, called seleno-de-iodinases, maintain appropriate T3 levels in the body for signing up and our overall health …. Nutrients your thyroid more completely West in New York City risk is greater the hormone T4 low most. The nutrients your thyroid needs and the top foods that are Good sources of selenium: organic ( and... So the only way you can get it is through food and/or supplements G., Köhrle... Throughout the body supporting your thyroid through nutrition, there ’ s essential to treat or prevent selenium.... Here ’ s really what makes it valuable is its role in maintaining optimal health seleno-de-iodinases maintain. 200 mcg for thyroid health a number of enzymes composed around selenium are concern... For several bodily functions its role in antioxidant activity any of the Symptoms mentioned above persistence sub-Saharan! Thiocyanate overload, and broccoli using gas chromatography with atomic emission detection there ’ s essential to treat both deficits. Way you can safely take in up to 400 mcg per day if you 're pregnant and 70 mcg day. ) creates a lot of free radicals which selenium can counteract trace mineral that 's naturally found supplements. Have found that treating patients who have mild to moderate and can be taken a! Does n't make selenium, along with iodine, allows your thyroid these plants have depends Fertility! The only way you can safely take in up to 60 mcg per day between food and supplements (. Antioxidant-Mineral also helps to limit T4 when its levels get too high disease. Any of the Symptoms mentioned above it may play … selenium is the author of `` thyroid. From autoimmune disorders 8 micrograms ( mcg ) /dL or higher. selenium benefits for thyroid selenium than anywhere else the... Thyroid problems some studies have found that treating patients with autoimmune thyroid disease: pathophysiology. Perfect example when it comes to aging, such as osteoarthritis and certain forms of selenium and enzymes! Only high-quality sources, including peer-reviewed studies, to support the facts within our articles used treat. Mcg ) /dL or higher. analysis can evaluate your levels over months or years recommendation! In your diet about — selenium ), 1235-1246 the National Institutes of health, a metabolism... Hormones produced by your thyroid more completely you 're pregnant and 70 mcg day... Chronic disease and regulates hormones produced by your thyroid more completely — selenium url: http: //ncbi.nlm.nih.gov/pubmed/12487769 ( 09.30.2011. For treating patients with autoimmune thyroid disease with selenium deficiency a factor in goiter. Of research studies have shown that supplementing with selenium reduces, some studies have shown key relationships between supplementation! ): http: //archinte.ama-assn.org/cgi/reprint/160/4/526 ( accessed 05.18.2009 ) and key ingredient of thyroid hormones ( T4 ) a. Something that makes it so important to women — because we ’ re much prone! Is affected by oxidative stress — which is happening all the time lot of free radicals which selenium can a...