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Selenium


June 2010: Vol 5 No 6

You must select yeast strains that incorporate selenium in the form of selenomethionine to make excellent natural organic food form of selenium.

 

Selenium (Se) is an essential micronutrient for humans and animals. Organic selenium complexes and selenium-containing amino acids are considered the most bioavailable.

 

Rarely does a food substance once considered poisonous rise to a position of great esteem, but in some professional circles over the years, selenium has earned this distinction. The work of Schwartz in 1957-60 identified "factor 3" in vitamin E (an organic compound containing selenium) that gave complete protection against dietary liver necrosis in rats. By the end of the 1960s, selenium was considered an essential nutrient for both animals and humans. The Committee on Dietary Allowances in 1980 set the limit of Selenium at 40-60 mcg for infants, 80-120 mcg for children and 200 mcg daily for adults. Since the distribution of selenium levels in soil varies, you should determine the amount you need to consume daily.

 

Selenium is an essential activating component of the enzyme glutathione peroxidase, which protects our cells from free radical damage. In humans, there is ample epidemiological evidence that high selenium is correlated with a lower incidence of cancer of the breast, ovary, cervix, lung, liver, esophagus, stomach, colon, rectum, bladder, pancreas, skin, liver, prostate, as well as leukemia. Selenium is also used for thyroid and carbohydrate metabolisms, to lower the risk of cardiovascular diseases, improved skin conditions, provide some benefits in rheumatoid arthritis, improve the functional improvements in muscular dystrophy and multiple sclerosis, improved mental well being, increase function of the immune system, and reduce liver damage. Selenium also inactivates heavy metals, such as mercury, lead, cadmium, arsenic, and copper. It is also reported to protect against radiation damage. Selenium also has an effect on stress, metabolic states and living cells.

 

Animal poisoning due to high-selenium soil is well known. Various studies have shown that long-term intakes of 500 to 750 micrograms/day have produced no signs of toxicity in humans. Data extrapolated from animal studies suggests that toxicity does not occur in humans ingesting less than 1,000 to 2,000 micrograms/day. Observable toxicity symptoms are garlic odor in breath, urine, and sweat. Some data suggest that extremely high levels of selenium may also cause birth defects in humans.

 

 

In summary, selenium maintains healthy muscle, red blood cells, keratins, protein, and immune system; reduces toxicity of some metals; contains the enzyme glutathione peroxidase that has detoxifying and antioxidant properties; and appears to be best absorbed when bound to amino acids.

 

Selenium Copyright 2010

 

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