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The role of Selenium in regulation of thyroid function

How Selenium Affects Thyroid Function

If you're wondering how selenium affects thyroid function, you've come to the right place. In this article, we'll answer your questions about the mineral, what its benefits are, and the symptoms of a selenium deficiency. Also, learn about the symptoms of hypothyroidism, which are both caused by selenium deficiency.

1. What is selenium?

Selenium is a micronutrient found in proteins. It is found in the highest concentration in the thyroid gland per gram of tissue. The selenium level in the body varies from one individual to the next and largely depends on geographic location, diet, and soil composition. Selenium plays an important role in thyroid metabolism and immune-endocrine function. The thyroid gland contains a large concentration of selenium, which is found in the form of selenoproteins.

Selenium content in foods can vary a great deal, with Brazil nuts containing more than six milligrams per gram. The same goes for yeasts, which contain up to three milligrams per gram. Foods that contain high levels of selenium include cabbage, broccoli, cauliflower, and garlic. Other good sources of selenium include sardines, soybeans, and eggs.

While selenium levels have correlated with thyroid function, there is some controversy about its role. The presence of selenium in the thyroid is related to an increased incidence of cancer. In a meta-analysis, Shen et al. analyzed eight articles involving 1291 subjects. They concluded that thyroid cancer patients had lower serum selenium and copper levels. However, a separate study, by Jonklaas et al., examined the selenium levels of euthyroid patients who underwent thyroidectomy. Those findings indicate that selenium may play a role in thyroid autoimmunity.

What are the benefits of selenium?

Although the amounts of selenium found in foods vary, the recommended daily allowance is 200 to 400 micrograms. In addition to food sources, selenium is also available in supplement form. This article explores the health benefits of selenium, as well as the risks associated with its consumption. While selenium is thought to play a role in several areas of human health, scientists are still studying its effects in clinical studies.

One of the benefits of selenium is its anticancer activity, which may reduce the risk of certain forms of cancer. Other health benefits include a reduction in the risk of cardiovascular disease, which is the sixth leading cause of death in the U.S., and the number of individuals with the disease is increasing. Researchers have also found a connection between selenium and neurological disorders such as Parkinson's and Alzheimer's, which have low levels of selenium in their blood. Fortunately, supplementation of this nutrient can improve cognitive ability in Alzheimer's and Parkinson's patients.

Another study examined selenium's role in treating Graves' disease. Published in J Clin Endocrinol Metab, Kahaly GJ and colleagues looked at the benefits of selenium in patients with Graves' disease. Researchers recruited seventy patients who had previously undergone no treatment for their hyperthyroidism. The study included a placebo-controlled study design that allowed for comparison of selenium with the standard diet. The study found that selenium supplementation did not significantly improve the response to methimazole in patients with Graves' disease.

. How does selenium affect thyroid function?

Selenium is a mineral with broad health benefits, including support for the thyroid gland. Its role in the thyroid hormone syntheses is crucial for optimal health. It also helps the body utilize iodine in the production of thyroid hormones. Though selenium deficiency is uncommon in the United States, it is more common in China. Whether or not you have a deficiency depends on your genetics and geographic location.

Although selenium is a trace mineral found in the soil, it is also available in some foods. Brazil nuts, ham, pork, beef, eggs, spinach, lentils, cashews, bananas, and oatmeal are all good sources of selenium. Adding these foods to your diet is another way to boost your selenium levels. But it is a good idea to consult a doctor if you're unsure whether your current intake is sufficient for thyroid health.

Studies have shown that selenium intake may differ between rural Chinese and more urban Chinese. This is due to differences in soil selenium content. In rural areas, however, the amount of selenium per day is low and one county has "adequate" levels of the mineral. In a study of over six hundred and fifty Chinese adults aged 18 to 70, researchers surveyed selenium intake in foods containing selenium. The study participants answered a food frequency questionnaire, underwent a thyroid ultrasound and fasted blood draw.

What are the symptoms of selenium deficiency?

What are the symptoms of selenium depletion in humans? The symptoms are different in animals. In animals with a deficiency in selenium, the symptoms include chronic infections and reproductive problems, including infertility and miscarriages. If the deficiency in selenium is severe, the animal may die of a disease called Keshan disease, which results from a combination of selenium deficiency and infection with the coxsackievirus.

If you do have selenium deficiencies, you may experience fatigue, sickness, and other symptoms. Selenium can also interfere with medications, such as chemotherapy, so it's vital to check with your doctor before supplementing. However, selenium supplements are not regulated like drugs and are not recommended for pregnant women or breastfeeding mothers. If you think you have symptoms of selenium deficiency, you should consult with a doctor to see if there is anything wrong with your diet.

People who are deficient in selenium may experience mental fog and thyroid problems. However, selenium deficiency does not necessarily lead to any of these symptoms. If you do have these symptoms, you should contact a doctor immediately. Selenium deficiency is a serious health problem that requires immediate treatment. In addition to psychological symptoms, deficiency can also cause thyroid dysfunction and a variety of other issues.

How can selenium deficiency be treated?

Although selenium is a trace element, it is necessary for human health. The body needs at least 60 micrograms per day for pregnancy and breastfeeding women. Although most Americans get sufficient amounts of selenium through their diet, a selenium deficiency can develop in people with certain medical conditions or inflammatory bowel disease. A simple blood test can determine whether you are deficient in selenium. If you suspect you have a selenium deficiency, the symptoms described below can help you take steps to correct the problem.

Selenium deficiency affects the thyroid gland, which produces powerful hormones. The thyroid controls metabolism, energy levels, and other body processes. Because of the role of the thyroid gland in human health, selenium deficiency can affect many aspects of the body. In fact, the symptoms of selenium deficiency closely parallel those of hypothyroidism, which is a disorder of the thyroid.

Selenium is an essential part of the immune system, and is associated with inflammation and impaired immunity. Supplementation with selenium can improve immune cell regulation and prevent chronic inflammatory responses. Supplementation has been shown to be beneficial in inflammatory bowel disease and asthma. Although there is no proven treatment for selenium deficiency, a diet rich in selenium will help patients overcome the problem.

Recommended supplements for low thyroid function

If you suffer from low thyroid function, you may want to take a supplement containing the essential vitamins and minerals needed by your thyroid. A multivitamin with high amounts of zinc and selenium is a good start. You may also want to consider taking 400 iu of vitamin D. Several studies have shown that tyrosine can improve thyroid expression. Tyrosine is an amino acid that the body cannot produce on its own.

Iodine is the main nutrient your thyroid needs to produce and secrete T3. If your body lacks iodine, you may experience underactive thyroid function. You can get iodine in table salt, fresh fish, seaweeds, and eggs. Selenium and zinc are also needed for conversion of T4 into T3. The nutrient-dense foods can help you meet these daily needs.

Chasteberry and glutathione can help you balance hormones and fight oxidative stress. Both these components are important in maintaining healthy thyroid function, but you can also take natural supplements to help your body make more of these compounds. Chasteberry is an effective supplement for women with hormone imbalance, and epigallocatechin-3-gallate is an excellent antioxidant. All of these supplements work by boosting thyroid function. You should consult your health care provider if you think you may be suffering from low thyroid function.


Selenium is a microelement required by the body and is particularly abundant in the thyroid gland. It has important roles in signaling pathways and immune-endocrine functions. While selenium is toxic when consumed in excess, it is not harmful in adequate amounts. While selenium is abundant in the thyroid gland, the body's natural reserves are not sufficient for optimal functioning. It also participates in the structure of antioxidant enzymes such as thioredoxin reductase and deiodinases, which are involved in hormone metabolism. Although selenium is a vital micronutrient for the thyroid, it is also a potent antioxidant.

The use of selenium in combination with antithyroid drugs has several benefits. The levels of anti-thyroglobulin antibodies (TTgAb) decreased in patients treated with TSH, anti-thyroid drugs. Interestingly, selenium supplementation improved FT4 levels, a marker of thyroid function. This positive effect of selenium on thyroid function has led to more research being conducted in this area.

A study in women with Graves' disease found that selenium supplementation restored thyroid function in a subgroup of patients. Patients who had previously been treated with anti-thyroid drugs were given selenium along with the medications. Their lab tests returned to normal levels and selenium supplementation helped them cope with their symptoms. Patients who were taking anti-thyroid medications reported reduced symptoms and improved quality of life.