Selenium Antioxidants

Selenium is a trace mineral found naturally in the soil that also appears in certain foods and there are even small amounts in water.

Selenium is an extremely vital mineral for the human body as it increases immunity, takes part in antioxidant activity that defends against free radical damage and inflammation, and plays a key role in maintaining a healthy metabolism.

According to studies, consuming plenty of naturally occurring selenium has positive antiviral effects, is essential for successful male and femalefertility and reproduction, and also reduces the risk of cancer, autoimmune and thyroid diseases.

Your body uses selenium to make enzymes called selenoproteins. There are 25 of them, and some of them — such as glutathione peroxidases — work as antioxidants, which are molecules that prevent against cell damage. They protect cells by turning chemicals such as hydrogen peroxide into harmless products like water

Selenium is a mineral found in the soil. Selenium naturally appears in water and some foods. While people only need a very small amount, selenium plays a key role in themetabolism.

Why do people take selenium?

Selenium has attracted attention because of its antioxidant properties. Antioxidantsprotect cells from damage. There is some evidence that selenium supplements may reduce the odds of prostate cancer. However, while supplements might lower risk of prostate cancer in people with low selenium levels, one study by the National Cancer Institute (NCI) found that for men with already high levels of selenium, supplements only increased the odds of prostate cancer.

 Selenium does not seem to affect the risk of colorectal or lung cancer. But beware: selenium also seems to increase the risk of non-melanoma skin cancer.

Some findings suggest that selenium can help lower the risk of cardiovascular disease, but the reasons for this link remain unclear. A study of older Danish men found them to be at risk when their levels were below 79 mcg.

Benefits of Selenium

Selenium might also help in the treatment of HIV/AIDS. According to the Linus Pauling Institute, people suffering from the disease normally have declining levels. This is sometimes associated with increased risk of death from HIV. There is not much research on the effects of selenium supplements on people with HIV. One study found that supplements helped to greatly lower hospitalization rates among people with HIV. Another found a decrease in one biological aspect of HIV progression. People who are fed intravenously are also at risk for low selenium. Doctors sometimes suggest that people with these conditions use selenium supplements.

Selenium has also been studied for the treatment of dozens of conditions. They range from asthma to arthritis to dandruff to infertility. However, the results have been inconclusive.

How much selenium should you take?

The recommended dietary allowance (RDA) includes the total amount of selenium you should get from foods and from any supplements you take. Most people can get their RDA of selenium from food.

In studies supporting the use of selenium for prostate cancer prevention, men took 200 micrograms daily.

The safe upper limit for selenium is 400 micrograms a day in adults. Anything above that is considered an overdose.

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