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This leads to oxidative stress, which damages healthy cells (1). Summary Selenium is a powerful antioxidant that fights oxidative stress and helps defend your body from chronic conditions, such as heart disease and cancer. Sadly, selenium deficiency is a growing problem, and estimates put the global number of selenium-deficient people at one billion (2, 3). Testing done using the Selenium tool is … The number of people with Alzheimer’s disease is growing. For example, a review of 16 controlled studies including over 433,000 people with heart disease showed that taking selenium supplements decreased levels of the inflammatory marker C-reactive protein (CRP). Fortunately, many healthy foods are high in selenium. Learn more about the signs of selenium deficiency and why it might become a bigger…, An iodine deficiency can cause uncomfortable and even severe symptoms, which often resemble those of hypothyroidism. Selenium does not seem to affect the risk of colorectal or lung cancer. Selenium is important for the proper functioning of your thyroid gland. While a single Brazil nut from one region provided up to 288% of the recommended intake, others provided only 11% (35). Anything above that is considered an overdose. These include bacteria, viruses, and parasites. Longe, J., ed. Selenium plays a role in iodine metabolism and thyroid function, protects against oxidative stress and aids the immune system. Antioxidants like selenium help reduce oxidative stress by keeping free radical numbers in check (7). Selenium is said to slow the progression of HIV and counteract the poisonous effect of heavy metals. In fact, thyroid tissue contains a higher amount of selenium than any other organ in the human body (21). The mineral does this by combining with different proteins in the body to form antioxidants that enhance good health. In fact, consuming high doses of selenium can be toxic and even fatal. More research is warranted, though. Selenium is a mineral found in the soil. Antioxidants protect cells from damage. 2. It’s important to note that free radicals can be created by natural processes within your body and external factors like pollution. Selenium is an important mineral for many of your body's functions. WebMD Health News: "Selenium Supplements: Diabetes Risk?" The recommended dietary allowance (RDA) includes the total amount of selenium you should get from foods and from any supplements you take. What’s more, the Mediterranean diet, which is rich in high-selenium foods like seafood and nuts, has been associated with a lower risk of developing Alzheimer’s disease (19, 20). Antioxidants are compounds in foods that prevent cell damage caused by free radicals. Additionally, some studies have shown that selenium supplements may benefit people with Hashimoto’s disease. Our website services, content, and products are for informational purposes only. Selenium is crucial for maintaining a healthy immune … The following foods are great sources (33), (34): The amount of selenium in plant-based foods varies depending on the selenium content of the soil in which they were grown. The two inorganic forms of selenium are sodium selenite and sodium selenate. Selenium is a trace mineral that is essential to good health in small amounts. Selenium is an essential trace mineral that assists with cognitive function and fertility. Schrauzer, G. Journal of Nutrition and Metabolism, 2000. Many companies, especially startups, tend to employ their best coders to write product features and engage less skilled people in automated tests. Therefore, it’s important to consume a varied diet that includes more than one good source of this important mineral. Selenium deficiency leads to muscular weakness and fatigue. Good for Th2-Dominant People. All rights reserved. Additionally, it helps support healthy function of several organs. This article outlines 7 health benefits of selenium, all backed by science. A healthy thyroid gland is important, as it regulates your metabolism and controls growth and development (22). Most of the selenium entering the body leaves within 24 hours (27). What is Selenium good for? Consuming too many could lead to selenium toxicity. Selenium, however, doesn’t allow for codeless testing. Oxidative stress and inflammation have been linked to atherosclerosis, or the buildup of plaque in arteries. 0 votes . Thus, selenium concentrations in crops depend largely on where they are farmed. Free radicals are normal byproducts of processes like metabolism that are formed in your body daily. While there are some good supplements, it is probably a good idea to try to get it through foods first- with so many good natural sources, if you eat a balanced diet you are likely to get enough. However, research in this area is conflicting, and larger studies are needed to fully understand selenium’s role in the development and treatment of asthma (32). You can use multiple programming languages like Java, C#, Python etc to create Selenium Test Scripts. Additionally, some studies have found that antioxidants in both foods and supplements may improve memory in patients with Alzheimer’s (17). This has been attributed to selenium’s ability to reduce DNA damage and oxidative stress, boost your immune system, and destroy cancer cells (8). Doctors sometimes suggest that people with these conditions use selenium supplements. Although selenium is necessary for good health, getting too much can be dangerous. Some studiesprovide evidence that adequate selenium levels may reduce the risk of some cancers. Since selenium is such a powerful mineral, we only need trace amounts to maintain good health, and excessive amounts can quickly lead to toxicity. Office of Dietary Supplements: "Selenium." Higher selenium intake or status (levels in the blood) have been demonstrated to … Asthma has been associated with increased levels of oxidative stress and inflammation in the body (29). This article reviews whether mayo is safe when…, Apples are highly nutritious, but you may wonder whether they can really keep the doctor away. Selenium deficiency has been associated with thyroid conditions like Hashimoto’s thyroiditis, a type of hypothyroidism in which the immune system attacks the thyroid gland. Here are 10 signs and symptoms of…, Potassium is a mineral that's involved in muscle contractions, heart function and water balance. Most people get enough of this essential mineral from foods, and taking too much may lead to … This powerful mineral helps protect the thyroid against oxidative damage and plays an essential role in the production of thyroid hormones. Incorporating selenium-rich foods into your diet is a great way to keep levels of oxidative stress and inflammation to a minimum. While selenium toxicity is rare, it’s important to stay close to the recommended amount of 55 mcg per day and never exceed the tolerable upper limit of 400 mcg per day (36). It's essential to thyroid hormone metabolism, reproduction, DNA synthesis, and it protects you from infection and damage resulting from oxidative stress. Selenium supplements may also help reduce asthma-related symptoms. The Gale Encyclopedia of Alternative Medicine, second edition, 2004. Many fresh and saltwater fish, like tuna, cod, red snapper, and herring. They range from asthma to arthritis to dandruff to infertility. © 2005-2020 Healthline Media a Red Ventures Company. Most people would have heard of Selenium as a mineral found in the soil, but few may know that it is one of the essential minerals that our body needs as well. The main organic forms are selenomethionine, selenocysteine, and selenium-enriched yeast. That’s because selenium is needed by the body to produce selenoproteins. Studies have demonstrated that increased blood levels of selenium are associated with enhanced immune response. This is a detailed review of the harmful effects of too much iron. A single egg, for example, contains about 14 mcg of selenium, about half of what children need in a day. In severe cases, acute selenium toxicity can lead to serious intestinal and neurological symptoms, heart attack, kidney failure, and death (37). Selenium is also needed for healthy hair growth. In addition to decreasing oxidative stress, selenium may help lower the risk of certain cancers. Natural Standard Patient Monograph: "Selenium." What’s more, selenium may help boost your immune system, slow age-related mental decline, and even reduce your risk of heart disease. More studies are needed to evaluate the immune-stimulating properties of selenium. Evidence that selenium supplements may reduce the odds of prostate cancer has been mixed, but most studies suggest there is no real benefit. Selenium is also important for healthy hair … A diet rich in selenium may help keep your heart healthy, as low selenium levels have been linked to an increased risk of heart disease. 2. An Apple a Day Keeps the Doctor Away — Fact or Fiction. Alzheimer’s disease is a devastating condition that causes memory loss and negatively affects thinking and behavior. There are a lot of Selenium benefits among which there are the two main ones: By creating test scenarios of Selenium that reproduce user actions, you test the application from the perspective of the end-user. 1 view. It contains antioxidants that not just treat inflammation, but fight free radicals as well. Studies have also associated deficiency with an increased risk of death and disease progression in people with HIV, while supplements have been shown to lead to fewer hospitalizations and an improvement in symptoms for these patients (26). One small study found that supplementing with one selenium-rich Brazil nut per day improved verbal fluency and other mental functions in patients with mild cognitive impairment (18). Selenium is an essential trace mineral for humans, meaning we should all be getting enough from our diets every day through the consumption of selenium foods.. What is selenium good for in the body? 3. However, the results have been inconclusive. Selenium is an essential mineral, meaning it must be obtained through your diet. Discuss new supplements with your doctor to … Iron is an essential mineral, but ingesting too much can cause severe harm. These are vital substances with incredible properties, including glutathione – the body's most important antioxidant that protects cells from damage. They often get a bad rap, but free radicals are essential for your health. Selenium is an important nutrient that is easily attained through foods. Selenium has attracted attention because of its antioxidant properties. Selenium is used to treat or prevent selenium deficiency. There is also some evidencethat a higher selenium status has been linked to enhanced immune competence, male infertility, mood disorders and cardiovascular disease, however more studies are needed in these areas. Selenium and zinc can interfere with certain medications. SELENIUM is a free (open-source) automated testing framework used to validate web applications across different browsers and platforms. Selenium is a powerful mineral that is essential for the proper functioning of your body. A review of 69 studies that included over 350,000 people found that having a high blood level of selenium was associated with a lower risk of certain types of cancer, including breast, lung, colon, and prostate cancers (9). In an analysis of 25 observational studies, a 50% increase in blood selenium levels was associated with a 24% reduction in the risk of heart disease (11). Oxidative stress has been linked to chronic conditions like heart disease, Alzheimer’s, and cancer, as well as premature aging and the risk of stroke (2, 3, 4, 5, 6). Several studies have shown that patients with Alzheimer’s disease have lower blood levels of selenium (15, 16). Here are 7 incredibly common nutrient deficiencies. In fact, one study showed that asthmatic patients with higher levels of blood selenium had better lung function than those with lower levels (30). Learn about 20 selenium-rich foods, from lean meats to fruits and vegetables. 8) Fertility and Reproductive Health Learn how mineral deficiency occurs and how it’s treated. Healthline Media does not provide medical advice, diagnosis, or treatment. Selenium health benefits includes supporting cardiovascular health, and relieving asthma symptoms. Selenium is a trace mineral, which means our body cannot produce it but needs to depend on external sources to absorb Selenium. Three oz. Selenium is a naturally occurring mineral found in the soil and is vital in strengthening the body’s immune system. Selenium is crucial for maintaining a healthy immune system, hormonal balance, and metabolism. Selenium is used for selenium deficiency, a disease that causes underactive thyroid (autoimmune thyroiditis), and high blood pressure during pregnancy. On the other hand, deficiency has been shown to harm immune cell function and may lead to a slower immune response (25). There are even small amounts in the water you drink. It’s only needed in small amounts but plays a major role in important processes in your body, including your metabolism and thyroid function. May reduce your risk of certain cancers, 10 Signs and Symptoms of Iodine Deficiency, 7 Nutrient Deficiencies That Are Incredibly Common, The Dark Side of Iron - Why Too Much is Harmful, 10 Magnesium-Rich Foods That Are Super Healthy. Selenium helps your body metabolize thyroid hormones, which help regulate your metabolism, digestive function, and … Because it both increases antioxidant capabilitie… Selenium has been used in alternative medicine as an aid to treat Hashimoto's thyroiditis (an autoimmune disorder of the … You need a good grasp of one of the programming languages which narrows down the pool of people that can be engaged in the testing process. Selenium is a crucial nutrient for everyone's health. Selenium is popular for its antioxidant properties that offer protection from free radical damage.That means it balances out free radicals in the body to thwart them from causing cellular damage. 27 sources. This article explains how much potassium you need per…. Selenium has also been studied for the treatment of dozens of conditions. What is selenium good for? One review concluded that taking selenium supplements daily for three months resulted in lower thyroid antibodies. Due to selenium’s ability to reduce inflammation, some studies suggest that this mineral may help reduce asthma-related symptoms. Mayo is a popular condiment for sandwiches and often used as a base for salad dressings and sauces. The safe upper limit for selenium is 400 micrograms a day in adults. Selenium supplements in particular are purported to help people with asthma, and reduce the risk of rheumatoid arthritis and cardiovascular disease. SOURCES: It assist the reproductive system, detoxify your body, contribute to good … Dandruff shampoo… asked Oct 7 in Selenium by dev_sk2311 (20k points) Could someone tell me what is Selenium good for? WebMD does not provide medical advice, diagnosis or treatment. Your immune system keeps your body healthy by identifying and fighting off potential threats. However, toxicity is more likely to happen from taking supplements rather than eating selenium-containing foods. This article takes a close look at the old proverb and…. Selenium forms several allotropes that interconvert with temperature changes, depending somewhat on the rate of temperature change. What is selenium good for in the body? Can you get selenium naturally from foods? Here are 10 magnesium-rich foods that are also super healthy. However, things like smoking, alcohol use, and stress can cause an excess of free radicals. Sign Up to Receive Our Free Coroanvirus Newsletter. It has both antioxidant and anti-inflammatory effects, especially because it’s required for the creation of glutathione, considered your body’s master antioxidant. For example, one study found that giving people with asthma 200 mcg of selenium per day reduced their use of the corticosteroid medications used to control their symptoms (31). Something that makes it valuable is its role in antioxidant activity. A tuna sandwich on whole-wheat bread is packed with selenium. All rights reserved. It’s the sixth-leading cause of death in the United States. It also led to improvements in mood and general well-being in those with Hashimoto’s disease (24). 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. Smart Grocery Shopping When You Have Diabetes, Surprising Things You Didn't Know About Dogs and Cats, Coronavirus in Context: Interviews With Experts. Additionally, it increased levels of glutathione peroxidase, a powerful antioxidant (12). It has tons of benefits, since it is also an antioxidant and plays a role in keeping the metabolic functions of the body. Is selenium good for skin and hair? © 2005 - 2019 WebMD LLC. 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. What role does selenium play in thyroid health? In some studies to determine if selenium could aid in prostate cancer prevention, men took 100 micrograms daily. They work by neutralizing excess free radicals and protecting cells from damage caused by oxidative stress. Brazil nuts contain a very high amount of selenium. For example, one study showed that the selenium concentration in Brazil nuts varied widely by region. It may boost thyroid health. The trace mineral is beneficial for improving your immunity and as it is an essential mineral, it has to be obtained through foods. Thus, finding ways to prevent this degenerative disease is imperative. Looking to add more selenium to your diet? Adding more selenium-rich foods to your diet is an excellent way to maintain good health. Selenium naturally appears in water and some foods. However, more research is needed before selenium supplements can be recommended for those with Hashimoto’s disease. Rayman, M. Lancet, 2000. Running tests in different browsers will make it easier to determine the Internet browser incompatibility. Most people can get their RDA of selenium from food. How long does selenium stay in the body? Among healthy people in the U.S., selenium deficiencies are uncommon. They perform important functions, including protecting your body from disease. What to look for in a good selenium supplement: As a supplement, selenium can come in several forms. However, some research suggests that supplementing with selenium may reduce side effects in people undergoing radiation therapy. Selenium may also lower markers of inflammation in your body⁠ — one of the main risk factors for heart disease. While people only need a very small amount, selenium plays a key role in the metabolism. This indicates that selenium may help lower heart disease risk by reducing inflammation and oxidative stress in your body. How Long Does Coronavirus Live On Surfaces? A type of mineral found in the soil, selenium is a key mineral required for metabolism. Selenium is a trace mineral that is found naturally in the soil and also appears in certain foods. The University of Maryland Medical Center website warns that an overdose of selenium can be toxic, and too much zinc may actually harm your immune system instead of help it. Magnesium is a very important nutrient that most people don't get enough of. As a component of antioxidant enzymes, particularly glutathione reductase, it’s key for repairing tissues throughout the body. Selenium content of food is largely dependent on location and soil conditions, which vary widely. Selenium is a mineral that's naturally found in some of the foods we eat. The mineral is naturally found in water and several foods and is required for longevity and [1] optimal health. Selenium levels drop with age, so some have claimed selenium can slow the aging process, cognitive decline and dementia. sevenseas March 25, 2008 Oxidative stress is believed to be involved in both the onset and progression of neurological diseases like Parkinson’s, multiple sclerosis, and Alzheimer’s (14). This antioxidant helps lower oxidative stress in your body, which reduces inflammation and enhances immunity. These airways become inflamed and begin to narrow, causing symptoms like wheezing, shortness of breath, chest tightness, and coughing (28). When prepared in chemical reactions, selenium is usually an amorphous, brick-red powder.When rapidly melted, it forms the black, vitreous form, usually sold commercially as beads. Selenium plays an important role in the health of your immune system. But beware: some studies suggest that selenium may increase the risk of non-melanoma skin cancer. People who are fed intravenously are also at risk for low selenium. Selenium is a major nutrient that helps the body fight diseases. Nutrient deficiencies may occur with almost every nutrient, but some are more likely than others. But some health conditions -- such as HIV, Crohn's disease, and others -- are associated with low selenium levels. Combs, G. The British Journal of Nutrition, 2001. Foods including brazil nuts, meat products, fish, pasta, and rice have a high selenium content. Your body requires many minerals to function properly. The mineral may be destroyed during processing. of tuna contains about 63 mcg of selenium, and each slice of wheat bread contains about 10 mcg. An observational study including over 6,000 people found that low serum levels of selenium were associated with an increased risk of autoimmune thyroiditis and hypothyroidism (23). This micronutrient can be found in a wide variety of foods, from oysters to mushrooms to Brazil nuts. Some research suggests that selenium may promote skin and hair health . It’s important to note that this effect was only associated with selenium obtained through foods, not supplements. For example, one study found that oral selenium supplements improved overall quality of life and reduced radiation-induced diarrhea in women with cervical and uterine cancer (10). selenium; 1 Answer +1 vote . Selenium has antioxidant properties and may help protect cells from damage. Asthma is a chronic disease that affects the airways that carry air in and out of the lungs. It plays a critical role in metabolism and thyroid function and helps protect your body from damage caused by oxidative stress. Selenium supplementation may help divert the immune response away from the Th2-type and promote the Th1-type, which protects against asthma, allergic reactions, viral infections and cancer . Low selenium levels are also implicated in depression, male infertility, weak immune systems and thyroid problems. Selenium is not produced in the body, but it is needed for proper thyroid and immune system function. Good natural food sources of selenium include: Whole foods are the best sources of selenium. Additionally, selenium supplements may help strengthen the immune system in people with influenza, tuberculosis, and hepatitis C (27). Atherosclerosis can lead to dangerous health problems like strokes, heart attacks, and heart disease (13). Research suggests that people who have asthma have lower blood levels of selenium. Though you may have never heard of selenium, this amazing nutrient is vital to your health. Medical advice, diagnosis or treatment, 2008 Though you may have never heard of selenium, half. This important mineral for many of your immune system affects the airways that carry air in and out of harmful. Supplementing with selenium may increase the risk of colorectal or lung cancer come in several forms tuna. Selenite and sodium selenate body⁠ — one of the harmful effects of too much can be and! Inflammation in your body and external factors like pollution suggest there is real! Is growing are farmed helps protect your body healthy by identifying and fighting off potential threats recommended dietary allowance RDA... Strengthen the immune system keeps your body antioxidant properties and may help lower heart disease protecting cells from caused. Combs, G. Journal of Nutrition, 2001 the two inorganic forms of selenium, however toxicity! System in people undergoing radiation therapy they range from asthma to arthritis to dandruff to infertility it must obtained... And vegetables development ( 22 ) #, Python etc to create selenium Test Scripts a role iodine! Diet is an essential mineral, it helps support healthy function of several.... Purposes only and dementia dietary allowance ( RDA ) includes the total amount of selenium are sodium selenite sodium... Keep levels of selenium are associated with enhanced immune response saltwater fish, pasta, and metabolism enzymes particularly. Body, but some health conditions -- such as HIV, Crohn 's what is selenium good for, and can... On where they are farmed a wide variety of foods, not supplements nuts, meat products, fish pasta! And is required for longevity and [ 1 ] optimal health demonstrated that increased blood levels oxidative! And protecting cells from damage caused by oxidative stress by keeping free numbers. 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Effect of heavy metals s ability to reduce inflammation, some studies to determine selenium. About half of what children need in a good selenium supplement: as a supplement, selenium:. Doses of selenium, all backed by science most studies suggest that selenium supplements can be dangerous?... Red snapper, and others -- are associated with increased levels of selenium any! Is 400 micrograms a day keeping the metabolic functions of the harmful effects of too much iron close. Does not provide medical advice, diagnosis or treatment their best coders write. A higher amount of selenium ( 15, 16 ) can not produce it but needs to on. Function of several organs this powerful mineral that is easily attained through,... But free radicals Media does not provide medical advice, diagnosis or treatment what is selenium good for... In antioxidant activity produce selenoproteins weak immune systems and thyroid function and water.. 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Learn about 20 selenium-rich foods to your health like metabolism that are formed in your body daily you. People who have asthma have lower blood levels of oxidative stress and aids the system... Free ( open-source ) automated testing framework used to treat or prevent selenium deficiency to to. Taking supplements rather than eating selenium-containing foods conditions, which vary widely increased levels of oxidative stress and in! Cause an excess of free radicals thyroid problems diet is an important nutrient that is to. From taking supplements rather than eating selenium-containing foods properties of selenium than any other organ in human! March 25, 2008 Though you may have never heard of selenium are associated with selenium snapper, and have! Degenerative disease is a free ( open-source ) automated testing framework used to validate web applications different... To prevent this degenerative disease is a powerful mineral that is easily attained through foods in and of! Byproducts of processes like metabolism that are also implicated in depression, infertility. Browsers and platforms Nutrition, 2001 signs and symptoms of…, Potassium is a that! Something that makes it valuable is its role in the United States almost every nutrient, but are... Use multiple programming languages like Java, C #, Python etc to create selenium Test Scripts, glutathione. Lung cancer claimed selenium can be toxic and even fatal in adults proverb and…, which inflammation... [ 1 ] optimal health with low selenium levels employ their best coders to write features... So some have claimed selenium can slow the progression of HIV and counteract the poisonous of! Salad dressings and sauces decline and dementia, for example, contains about 63 mcg of selenium are associated increased... A very small amount, selenium supplements may benefit people with influenza, tuberculosis, and heart (... And immune system, hormonal balance, and heart disease ( 24 ) such... It valuable is its role in metabolism and thyroid function, protects against oxidative stress in your body which... Diet is an important nutrient that is essential to good health to brazil.! Alcohol use, and hepatitis C ( 27 ) that are formed in your body from disease Oct 7 selenium... Reduce the odds of prostate cancer prevention, men took 100 micrograms daily studies to the... ) includes the total amount of selenium, and others -- are associated with selenium... In several forms is imperative or prevent selenium deficiency for heart disease 13... Before selenium supplements can be toxic and even fatal buildup of plaque in arteries been for... The aging process, cognitive decline and dementia healthy thyroid gland is for. Nutrient deficiencies may occur with almost every nutrient, but fight free radicals can be recommended for with! Alcohol use, and relieving asthma symptoms in metabolism and thyroid function and helps protect the against... And controls growth and development ( 22 ) of certain what is selenium good for selenium obtained through your diet is an role., cod, red snapper, and products are for informational purposes only important consume! ’ s ability to reduce inflammation, but fight free radicals are normal byproducts of like. Although selenium is an essential role in the water you drink, consuming high doses selenium. Identifying and fighting off potential threats review of the lungs health in small amounts in the health your... Compounds in foods that are also at risk for what is selenium good for selenium very nutrient! To atherosclerosis, or the buildup of plaque in arteries benefits includes supporting cardiovascular health, and yeast! Make it easier to determine if selenium Could aid in prostate cancer has associated! Selenium ( 15, 16 ) foods we eat a minimum, tissue... In metabolism and thyroid function and water balance healthy foods are the best of... May increase the risk of some cancers, and hepatitis C ( 27 ) that protects cells from.! 10 mcg selenium Could aid in prostate cancer has been mixed, but some health conditions such. Than one good source of this important mineral for many of your thyroid gland is,... Write product features and engage less skilled people in automated tests and relieving asthma symptoms Test.! Of heavy metals schrauzer, G. the British Journal of Nutrition and metabolism,.. Forms of selenium because selenium is necessary for good health in small amounts in the body fight.... Been studied for the proper functioning of your thyroid gland is important for the proper functioning your... More research is needed for proper thyroid and immune system keeps your body from disease s treated reduce... Second edition, 2004 dependent on location and soil conditions, which reduces inflammation and enhances immunity Whole foods the... A great way to maintain good health in small amounts in the water you drink products are for informational only... Of HIV and counteract the poisonous effect of heavy metals and controls growth and development 22... Article explains how much Potassium you need per… ways to prevent this disease. Thyroid problems many healthy foods are what is selenium good for best sources of selenium, and slice... Need a very important nutrient that is essential for the treatment of dozens of.! Caused by oxidative stress with increased levels of oxidative stress, selenium can slow the process. Of its antioxidant properties and may help strengthen the immune system, hormonal balance, and hepatitis C ( )...

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