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Selenium: Americans rarely have deficiencies of this trace mineral, but it never hurts to be informed.(analysis of selenium)
Selenium may not be the most recognizable mineral in the supplement aisle (as opposed to, say, calcium, magnesium or iron), but it does play an important role in good health. In the body, selenium is used to form antioxidant enzymes--powerful free-radical fighters that can help prevent conditions such as cancer, heart disease and arthritis.
The most common dietary sources of selenium are plant foods, Brazil nuts, meats and fish. Pasta and white and brown rice are other notable sources. Provided you eat a variety of these types of foods, you should have no problem getting the recommended daily allowance of 55mcg.
Because the body requires such a small amount of selenium, chances are you don't suffer from a deficiency--unless you eat a lot of food from certain areas of China or Russia that have low levels of this trace mineral in the soil. There are some exceptions, though: People with severe gastrointestinal disorders (e.g., Crohn's disease) may have an increased risk of selenium deficiency. The same is true for those who've had part of their stomach surgically removed. And if you're iodine deficient--rare as it is in the United States--you might also be low in selenium.
If any of the above pertains to you, you could be at risk for lung, colorectal and prostate cancers, heart disease, arthritis, ...
- Foods High in Antioxidants, Selenium, and Vitamin E.
- Newspaper article from: Alternative Medicine Alert November 1, 2005 700+ words
...generally have the highest selenium intakes in the United States. In the United States...have higher levels of selenium in their muscle. In the United States, meats and bread are...sources of dietary selenium. Some nuts are also...
- Selenium May Not Cut Cancer Risks
- Newspaper article from: Chicago Sun-Times THERESA TAMKINS April 9, 1995 700+ words
...University in Raleigh. Selenium enters foods as...soil, he said. Selenium levels in soil vary widely in the United States, but because...people in the United States are consuming...high amounts of selenium help prevent cancer...
- The new nutritional superstar.(selenium may prevent cancer)
- Magazine article from: Good Housekeeping Snyderman, Nancy February 1, 1997 700+ words
...that in areas of the United States where the soil is poor in selenium, cancer rates are...than in areas with selenium-rich soil. (The...patients from the eastern United States, where the soil's selenium levels are low...
- Selenium (revised)
- Reference information from: Chemical Elements: From Carbon to Krypton January 1, 2006 700+ words
...Occurrence in nature Selenium is a very rare element...The major producers of selenium in the world are Japan, Canada, Belgium, the United States, and Germany. Isotopes...occurring isotopes of selenium, selenium-74, selenium...
- Selenium's secrets probed in new study.
- Magazine article from: Agricultural Research Wood, Marcia March 1, 2002 700+ words
...specially enriched with selenium--an essential nutrient...research into the activity of selenium in our bodies needs to be done before the United States embarks on fortifying foods...moderately high doses of selenium. He is looking at the...
- Selenium May Inhibit Progression Toward Esophageal Cancer in Patients with...
- Press release article from: PR Newswire May 20, 2003 700+ words
...recommended dietary allowance for selenium is 55 micrograms (mcg) for...common dietary sources of dietary selenium in the United States. Brazil nuts and walnuts are...sources. "If there's a lot of selenium in the soil, there will be...
- Kenaf and Canola--Selenium Slurpers.(Brief Article)
- Magazine article from: Agricultural Research Wood, Marcia June 1, 2000 700+ words
...and lakes used by wildlife. Selenium-accumulating kenaf and canola...to cleanse or detoxify high-selenium soil or drainage water might...enough of this nutrient. "In the United States, selenium deficiency is typically a bigger...
- Does selenium supplementation cause diabetes?(Editorial)
- Magazine article from: Townsend Letter: The Examiner of Alternative Medicine Gaby, Alan R. November 1, 2007 700+ words
...where the soil is high in selenium, such as parts of South...elevated blood levels of selenium, and 64% had relatively high urinary selenium excretion. (6) However...compared with 9.6% in the United States as a whole. (8) In contrast...
