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Here's what selenium is, what benefits it provides and the dangers of taking too much. ... That's 55 micrograms daily for people 14 years and older, per the NIH; "but you'll need slightly more if ...
For example, in salmon, the optimal concentration of selenium in the fish tissue (whole body) is about 1 microgram selenium per gram of tissue (dry weight). At levels much below that concentration, young salmon die from selenium deficiency; [23] much above that level they die from toxic excess. [24]
Selenium: 0.055 0.4; 0.3 ... [54] [citation needed] Minerals can be bioengineered by bacteria which act on metals to catalyze mineral dissolution and precipitation. [55]
Selenium is essential for metabolism and thyroid function, yet we need only need a small amount daily. One Brazil nut contains around 68 to 91 micrograms of selenium, says Malkoff-Cohen.
Selenium is toxic in high concentrations. As sodium selenite, the chronic toxic dose for human beings was described as about 2.4 to 3 milligrams of selenium per day. [7] In 2000, the US Institute of Medicine set the adult Tolerable upper intake levels (UL) for selenium from all sources - food, drinking water and dietary supplements - at 400 μg/day. [8]
Brazil Nuts. Protein per ounce: 4.05 grams* “Brazil nuts are one of the richest food sources of selenium, an antioxidant that helps protect cells from damage and supports immune function ...
Selenomethionine (SeMet) is a naturally occurring amino acid.The L-selenomethionine enantiomer is the main form of selenium found in Brazil nuts, cereal grains, soybeans, and grassland legumes, while Se-methylselenocysteine, or its γ-glutamyl derivative, is the major form of selenium found in Astragalus, Allium, and Brassica species. [1]
Selenium deficiency occurs when an organism lacks the required levels of selenium, a critical nutrient in many species.Deficiency, although relatively rare in healthy well-nourished individuals, [1] can have significant negative results, [2] affecting the health of the heart and the nervous system; contributing to depression, anxiety, and dementia; and interfering with reproduction and gestation.
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