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How much selenium does a woman need

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Back to Vitamins and minerals. As well as vitamins and more common minerals, a healthy diet includes many other nutrients. Beta-carotene gives yellow and orange fruit and vegetables their colour. It's possible taking large amounts of beta-carotene supplements could also increase the risk of cancer in other people.

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SEE VIDEO BY TOPIC: The Health Benefits of Selenium

Selenium is the secret ingredient that makes your antioxidants work better

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Selenium is an essential mineral found in small amounts in the body. It works as an antioxidant, especially when combined with vitamin E.

Antioxidants like selenium help fight damaging particles in the body known as free radicals. Free radicals can damage cell membranes and DNA, and may contribute to aging and health conditions, including heart disease and cancer. Antioxidants can neutralize free radicals and may reduce or even help prevent some of the damage they cause.

Selenium plays a role in thyroid function. Your immune system also needs selenium to work properly. People with conditions ranging from rheumatoid arthritis RA to certain types of cancer often have low levels of selenium.

However, in most cases scientists are not sure whether low selenium levels are a cause or an effect of the disease.

When researchers examined whether selenium had any effect on skin cancer, they found that people who took as little as mcg of selenium per day for more than 7 years had a significantly higher risk of developing type 2 diabetes.

More studies are needed to understand the meaning behind these findings. In the meantime, you should not take more than the daily recommended allowance of selenium without your doctor's supervision. If you are healthy and eat a well-balanced diet, you probably get enough selenium.

You may have low levels of selenium if you:. The evidence on taking selenium to treat heart disease is mixed. Scientists know that low levels of selenium can contribute to heart failure, and being deficient in selenium seems to make atherosclerosis worse.

Atherosclerosis, or hardening of the arteries, happens when plaque builds up in arteries, which can lead to heart attack and stroke. Studies show that taking selenium supplements does not seem to have any effect on the progression of heart disease, nor does it protect against heart attack. Selenium, combined with other antioxidants, including vitamin E and beta-carotene, may help lower LDL bad cholesterol levels. But selenium can also interact with cholesterol-lowering drugs, and make them less effective.

If you have or are at risk for heart disease, talk to your doctor before taking selenium. Studies show that low levels of selenium are associated with a higher risk of cancer death.

Scientists are not sure how selenium affects this risk. But they have observed that people who live in parts of the world where the soil is rich in selenium have lower rates of cancer, possibly because there is more selenium in food. In addition, people who have cancer often have low levels of selenium.

For most types of cancer, selenium does not appear to have much effect. One early study looking at whether selenium reduced the risk of skin cancer found that, although it did not seem to affect skin cancer risk, people who took selenium lowered their risk of death from cancer overall.

However, later studies found that selenium does not seem to lower the risk of lung or esophageal cancer. Evidence is mixed on whether it protects against colorectal cancer. Two studies suggest that mcg per day might help protect against colorectal cancer, but other studies do not show any benefit. The best evidence suggests that if you have low levels of selenium, getting more selenium in your diet may lower your risk of prostate cancer.

Taking a special kind of selenium-rich brewer's yeast, called selenized yeast, may also help. In one study of 1, people, those who took mcg of selenium as selenized yeast per day compared to those who took a placebo had two-thirds lower risk of developing prostate cancer during the 4. However, the men who got the benefit had low levels of selenium to start with. The situation is even more complicated when it comes to skin cancer.

Some early evidence led scientists to investigate whether selenium might protect against skin cancer. But a large trial found that taking daily selenium supplements actually increased the risk of squamous cell carcinoma and non-melanoma skin cancer.

Many studies suggest that the body needs selenium for the immune system to work properly. Selenium, along with other minerals, can help boost white blood cells, which improves the body's ability to fight illness and infection. A few studies suggest that selenium might help prevent some infections, such as a bacterial skin infection that often occurs with lymphedema, and mycoplasma pneumonia.

In addition, one study suggested that when elderly people took zinc and selenium supplements, their immune systems responded better to the flu vaccine than those who took placebo. Evidence suggests that people with asthma tend to have low blood levels of selenium.

In a study of 24 people with asthma, those who took selenium supplements for 14 weeks had fewer symptoms compared to those who took placebo. But in a larger randomized, double-blind study, people who took a yeast supplement that contained selenium didn't have fewer symptoms than those who took placebo. More studies are needed. Studies have shown that levels of selenium go down consistently as HIV progresses. In one study, those taking a particular selenium supplement called Selenomax slowed the increase in viral load and had higher CD4 cell counts.

But another study found that taking selenomethionine, a type of selenium, had no effect. Selenium and other antioxidants play an essential role in how your body makes certain proteins found in sperm. One study suggested that selenium supplements might improve male fertility in men who had low levels of selenium.

However, high levels of selenium may negatively impact sperm's ability to swim. Low levels of selenium in the blood may be associated with increased risk of RA. But it does not seem that selenium supplements help once you have RA. Good sources of selenium include brewer's yeast and wheat germ, liver, butter, fish mackerel, tuna, halibut, flounder, herring, and smelts , shellfish oysters, scallops, and lobster , garlic, whole grains, sunflower seeds, and Brazil nuts. Selenium is destroyed when foods are refined or processed.

Eating a variety of whole, unprocessed foods is the best way to get selenium in your diet. Selenium may be taken as part of a vitamin-mineral supplement, a nutritional antioxidant formula, or as a separate supplement. Most supplements contain a form of selenium called selenomethionine. Some studies have used mcg per day for some conditions. But evidence suggests that taking that amount over a long period of time could increase your risk of developing diabetes.

Talk to your doctor before taking more than the recommended daily allowance. Because of the potential for side effects and interactions with medications, you should take dietary supplements only under the supervision of a knowledgeable health care provider.

Talk to your doctor before taking more than the recommended daily allowance of selenium. Although some studies have used doses of mcg, there is some evidence that this amount could increase your risk for diabetes. DO NOT exceed the upper tolerable limit of mcg. Remember that you may also get some selenium in the foods you eat. If you are being treated with any of the following medications, you should not use selenium supplements without first talking to your health care provider.

Although selenium may help reduce side effects from drugs such as cisplatin, doxorubicin, and belomycin, it may also interfere with their cancer-fighting ability. If you are undergoing chemotherapy, talk to your oncologist before taking selenium or any other supplement. Taking certain antioxidants together, including selenium, along with these drugs may make them less effective.

In theory, selenium may also reduce the effectiveness of other statins, including atorvastatin Lipitor , fluvastatin Lescol , lovastatin Mevacor , and prevastatin Pravachol. Some researchers propose that women taking birth control pills may have higher levels of selenium in their blood. If you take birth control pills, ask your doctor before taking extra selenium.

These chemical compounds may lower levels of selenium in the body and cause symptoms of selenium deficiency. Phase 3 clinical trial investigating the effect of selenium supplementation in men at high-risk for prostate cancer.

Selenium deficiency increases the pathology of an influenza virus infection. Selenium and diabetes: more bad news for supplements. Ann Intern Med. Serum selenium levels and all-cause, cancer, and cardiovascular mortality among US adults.

Arch Intern Med. Antioxidant supplements for prevention of gastrointestinal cancers: a systematic review and meta-analysis. Brawley OW, Panes H. Prostate cancer prevention trials in the USA. Eur J Cancer. Oxidative damage and protection of the RPE. Prog Retin Eye Res. Antioxidant supplements block the response of HDL to simvastatin-niacin therapy in patients with coronary heart disease and low HDL.

Arterioscler Thromb Vasc Biol. Nutritional Prevention of Cancer Study Group. Selenium supplementation and secondary prevention of nonmelanoma skin cancer in a randomized trial.

J Natl Cancer Inst. Intake of selenium in the prevention of prostate cancer: a systematic review and meta-analysis. Cancer Causes Control. A randomized, placebo-controlled trial of selenium supplementation in patients with type 2 diabetes: effects on glucose homeostasis, oxidative stress, and lipid profile.

Am J Ther. Fleshner NE, Kucuk O. Antioxidant dietary supplements: Rationale and current status as chemopreventive agents for prostate cancer. Comprehensive nutritional status in recently diagnosed patients with inflammatory bowel disease compared with population controls. Eur J Clin Nutr.

Learn About Selenium in 5 Minutes

Have a question? Selenium is a trace element that is naturally present in many foods, added to others, and available as a dietary supplement. Selenium, which is nutritionally essential for humans, is a constituent of more than two dozen selenoproteins that play critical roles in reproduction, thyroid hormone metabolism, DNA synthesis, and protection from oxidative damage and infection [ 1 ].

What is selenium? Selenium is a mineral found in soil, water, and some foods.

Selenium is a mineral that you need to consume in small amounts. Combined with proteins to make selenoproteins, it can act as an antioxidant, keep your immune system functioning properly and regulate thyroid function. Getting enough selenium through your diet may lower your risk for certain health conditions and prevent deficiency symptoms. Women should consume 55 micrograms of selenium per day, unless they are pregnant or lactating, which increases selenium needs.

Selenium: What it does and how much you need

Selenium is a an amazing and essential mineral. It's a powerful antioxidant used by the body to maintain thyroid balance, protect DNA, and fight against infections. While many people are unaware of the amazing benefits of selenium, this mineral is essential to your health, and it boosts your overall well-being in a variety of ways. Through its antioxidant action, selenium appears to keep your nervous system healthy, protect you from coronary heart disease, and improve the responsiveness of your immune system. No multivitamin is complete without selenium, which is why we made sure to include your full daily dose of this impressive nutrient in Feel. Medical research has established that selenium has several compelling benefits that make this mineral an integral part of your diet. Here are the highlights:.

What Are Selenium Supplements?

Certain things in life are just better together: chocolate and peanut butter, you and your BFF, iron and vitamin C. And another power duo that deserves major recognition is selenium and antioxidants. Woah, selenium what? While not given as much press time as magnesium or calcium, selenium is another essential trace mineral that your bod needs to be in tip-top shape. While overdoing it on selenium can be dangerous more on that later , for the most part, selenium can work wonders for the human body.

Selenium: heard of it?

Selenium is one of the "essential" nutrients for humans, meaning that our bodies cannot make it, and so we have to get it from our diet. Without it the heart, joints, eyes, immune system and reproductive system can suffer. Yet humans only need to eat a trace of selenium every day, about 55 micrograms or millionths of a gram.

9 Best Food Sources Of Selenium & Why We Need It

You probably don't spend much time thinking about selenium, a rare metal that shows up in tiny amounts in all sorts of foods. There isn't very much selenium in your body, either, but its doing an important job. The mineral is a key ingredient to powerful antioxidant enzymes that protect your cells from damaging free radicals. It can definitely help keep your heart, liver, and muscles working well, and it may lower the risk of some types of cancer.

Selenium is an essential mineral found in small amounts in the body. It works as an antioxidant, especially when combined with vitamin E. Antioxidants like selenium help fight damaging particles in the body known as free radicals. Free radicals can damage cell membranes and DNA, and may contribute to aging and health conditions, including heart disease and cancer. Antioxidants can neutralize free radicals and may reduce or even help prevent some of the damage they cause. Selenium plays a role in thyroid function.

Selenium For Women

Selenium is an essential trace mineral that is important for many bodily processes, including cognitive function, a healthy immune system, and fertility in both men and women. It contributes to thyroid hormone metabolism and DNA synthesis, and it helps protect against oxidative damage and infection, according to the United States Office of Dietary Supplements. The amount of selenium in food often depends on the selenium concentration of the soil and water where farmers grew or raised the food. Selenium may help prevent cardiovascular disease, thyroid problems, cognitive decline, which means disorders related to thinking, cancer, and others. Cardiovascular disease : According to the Office for Dietary Supplements, selenoproteins can protect against cardiovascular disease, because they prevent the oxidative modification of lipids, or fats, in the body. This reduces inflammation and prevents the buildup of platelets. Thyroid disorders : Selenium has an important role in producing and metabolizing thyroid hormone. There is some evidence that women with higher selenium levels have fewer thyroid problems, but this has not been proven for men, and other studies have produced mixed results.

Feb 28, - But too much selenium can cause selenosis, a condition marked by hair and of selenium is 60 micrograms for men and 53 micrograms for women, according to "Obviously, if someone has a deficiency then they do need a.

Selenium, a mineral found in fish, meat, eggs, grains and certain nuts, helps boost antioxidant activity in the body to potentially ward off chronic diseases. But too much selenium can cause selenosis, a condition marked by hair and nail loss, garlic breath, fatigue and nerve damage. The recommended daily intake of selenium is 60 micrograms for men and 53 micrograms for women, according to the review published today in The Lancet. But men and women in the U.

Selenium Supplements: Too Much of a Good Thing?

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