Selenium is a mineral. It is taken into the body in water and foods. People use it for medicine.
Most of the selenium in the body comes from the diet. The amount of selenium in food depends on where it is grown or raised. Crab, liver, fish, poultry, and wheat are generally good selenium sources. The amount of selenium in soils varies a lot around the world, which means that the foods grown in these soils also have differing selenium levels. In the U.S., the Eastern Coastal Plain and the Pacific Northwest have the lowest selenium levels. People in these regions naturally take in about 60 to 90 mcg of selenium per day from their diet. Although this amount of selenium is adequate, it is below the average daily intake in the U.S., which is 125 mcg.
Selenium is used for diseases of the heart and blood vessels, including stroke and \u201chardening of the arteries\u201d (atherosclerosis). It is also used for preventing various cancers including cancer of the prostate, stomach, lung, and skin.
Some people use selenium for under-active thyroid, osteoarthritis, rheumatoid arthritis (RA), an eye disease called macular degeneration, hay fever, infertility, cataracts, gray hair, abnormal pap smears, chronic fatigue syndrome (CFS), mood disorders, arsenic poisoning, and preventing miscarriage.
Selenium is also used for preventing serious complications and death from critical illnesses such as head injury and burns. It is also used for preventing bird flu, treating HIV\/AIDS, and reducing side effects from cancer chemotherapy.<\/p>\n
Natural Medicines Comprehensive Database<\/i> rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, Ineffective, and Insufficient Evidence to Rate<\/i>.
The effectiveness ratings for SELENIUM<\/b> are as follows: <\/p>\n
Likely Effective for…<\/b><\/p>\n Possibly Effective for…<\/b><\/p>\n Possibly Ineffective for…<\/b><\/p>\n Insufficient Evidence to Rate Effectiveness for…<\/b><\/p>\n More evidence is needed to rate selenium for these uses. <\/p>\n Selenium is important for making many body processes work correctly. It seems to increase the action of antioxidants.<\/p>\n Selenium is LIKELY SAFE<\/b> for most people when taken by mouth in doses less than 400 mcg per day, short-term. Pregnancy and breast-feeding<\/b>: Selenium use is POSSIBLY SAFE<\/b> during pregnancy and breast-feeding when used short-term in amounts that are not larger than 400 mcg per day. Are there any interactions with medications?<\/p>\n Birth control pills (Contraceptive drugs)<\/b> Some research shows that women who take birth control pills might have increased blood levels of selenium. But other research shows no change in selenium levels in women who take birth control pills. There isn’t enough information to know if there is an important interaction between birth control pills and selenium. Gold salts<\/b> Gold salts bind to selenium and decrease selenium in parts of the body. This might decrease the normal activity of selenium, possibly resulting in symptoms of selenium deficiency. Medications that slow blood clotting (Anticoagulant \/ Antiplatelet drugs)<\/b> Selenium might slow blood clotting. Taking selenium along with medications that also slow blood clotting might increase the chances of bruising and bleeding. Medications used for lowering cholesterol (Statins)<\/b> Taking selenium, beta-carotene, vitamin C, and vitamin E together might decrease the effectiveness of some medications used for lowering cholesterol. It is not known if selenium alone decreases the effectiveness of medications used for lowering cholesterol. Niacin<\/b> Taking selenium along with vitamin E, vitamin C, and beta-carotene might decrease some of the beneficial effects of niacin. Niacin can increase the good cholesterol. Taking selenium along with these other vitamins might decrease how well niacin works for increasing good cholesterol.<\/p>\n Sedative medications (Barbiturates)<\/b> The body breaks down medications to get rid of them. Selenium might slow how fast the body breaks down sedative medications (barbiturates). Taking selenium with these medications might increase the effects and side effects of these medications.<\/p>\n Warfarin (Coumadin)<\/b> Selenium might thin the blood. Selenium might also increase the effects of warfarin in the body. Taking selenium along with warfarin might increase the chances of bruising and bleeding.<\/p>\n Are there any interactions with Herbs and Supplements?<\/p>\n Astragalus<\/b><\/p>\n Some species of astragalus accumulate large amounts of selenium, especially when grown in selenium-rich soils. Taking products made from these plants along with selenium supplements could cause selenium poisoning. However, most astragalus supplements contain Astragalus membranaceus, which is not a selenium accumulator.<\/p>\n Zinc<\/b><\/p>\n Zinc might make it more difficult for the body to absorb selenium from food.<\/p>\n There are no known interactions with foods.<\/p>\n The following doses have been studied in scientific research: The daily recommended dietary allowances (RDAs) of selenium are: <\/p>\n The tolerable upper limit is: <\/p>\n Atomic number 34, Dioxyde de S\u00e9l\u00e9nium, Ebselen, L-Selenomethionine, L-S\u00e9l\u00e9nom\u00e9thionine, Levure S\u00e9l\u00e9nis\u00e9e, Num\u00e9ro atomique 34, Se, Selenio, Selenite, S\u00e9l\u00e9nite de Sodium, S\u00e9l\u00e9nium, Selenium Ascorbate, Selenium Dioxide, Selenized Yeast, Selenomethionine, S\u00e9l\u00e9nom\u00e9thionine, Sodium Selenite.<\/p>\n","protected":false},"excerpt":{"rendered":" What is it? Selenium is a mineral. It is taken into the body in water and foods. People use it for medicine. Most of the selenium in the body comes from the diet. The amount of selenium in food depends on where it is grown or raised. 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How does it work?<\/h2>\n
Are there safety concerns?<\/h2>\n
Higher doses are POSSIBLY UNSAFE<\/b>. They can cause significant side effects including nausea, vomiting, nail changes, loss of energy, and irritability. Poisoning from long-term use is similar to arsenic poisoning, with symptoms including hair loss, white horizontal streaking on fingernails, nail inflammation, fatigue, irritability, nausea, vomiting, garlic breath odor, and a metallic taste.
Selenium can also cause muscle tenderness, tremor, lightheadedness, facial flushing, blood clotting problems, liver and kidney problems, and other side effects.
There is concern that taking selenium for a long time might not be safe. Long-term consumption of selenium supplements appears to increase the chance of getting type 2 diabetes. It also seems to increase the risk of skin cancer recurrence. There is also some concern that having too much selenium in the body might increase the risk of overall death as well as death from cancer. <\/p>\nSpecial Precautions & Warnings:<\/h6>\n
Fertility problems in men<\/b>: Selenium might decrease the ability of sperm to move, which could reduce fertility. If you are trying to father a child, don\u2019t take selenium supplements.
Prostate cancer<\/b>: There is concern that taking large amounts of a multivitamin plus a separate selenium supplement might increase the chance of developing prostate cancer and dying from prostate cancer.
A history of skin cancer<\/b>: Long-term use of selenium supplements might slightly increase the risk of skin cancer recurrence, but this is controversial. Until more is known about the possible increase in skin cancer risk, avoid long-term use of selenium supplements if you have ever had skin cancer.
Under-active thyroid (hypothyroidism)<\/b>: Taking selenium can worsen hypothyroidism especially in people with iodine deficiency. In this case, you should take iodine along with selenium. Check with your healthcare provider.
Surgery<\/b>: Selenium might increase the risk of bleeding during and after surgery. Stop taking selenium at least 2 weeks before a scheduled surgery. <\/p>\n
Interaction Rating = Minor<\/b> Be watchful with this combination.
Talk with your health provider.<\/p>\n
Some birth control pills include ethinyl estradiol and levonorgestrel (Triphasil), ethinyl estradiol and norethindrone (Ortho-Novum 1\/35, Ortho-Novum 7\/7\/7), and others.<\/p>\n
Interaction Rating = Minor<\/b> Be watchful with this combination.
Talk with your health provider.<\/p>\n
Gold salts include aurothioglucose (Solganal), gold sodium thiomalate (Aurolate), and auranofin (Ridaura).<\/p>\n
Interaction Rating = Major<\/b> Do not take this combination.<\/p>\n
Some medications that slow blood clotting include aspirin, clopidogrel (Plavix), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, ticlopidine (Ticlid), warfarin (Coumadin), and others.<\/p>\n
Interaction Rating = Moderate<\/b> Be cautious with this combination.
Talk with your health provider.<\/p>\n
Some medications used for lowering cholesterol include atorvastatin (Lipitor), fluvastatin (Lescol), lovastatin (Mevacor), and pravastatin (Pravachol).<\/p>\n
Interaction Rating = Moderate<\/b> Be cautious with this combination.
Talk with your health provider.<\/p>\n
Interaction Rating = Moderate<\/b> Be cautious with this combination.
Talk with your health provider.<\/p>\n
Interaction Rating = Moderate<\/b> Be cautious with this combination.
Talk with your health provider.<\/p>\nAre there interactions with Foods?<\/h2>\n
What dose is used?<\/h2>\n
BY MOUTH:<\/b><\/p>\n\n
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What other names is the product known by?<\/h2>\n