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Selenium is a component of the amino acids selenocysteine and selenomethionine. In humans, selenium is a trace element nutrient that functions as cofactor for glutathione peroxidases and certain forms of thioredoxin reductase. [1] Selenium-containing proteins are produced from inorganic selenium via the intermediacy of selenophosphate (PSeO 3 3 ...
In fish and other wildlife, selenium is necessary for life but toxic in high doses. For salmon, the optimal selenium concentration is about 1 microgram selenium per gram of whole body weight. Much below that level, young salmon die from deficiency; [144] much above, they die from toxic excess. [143]
When free radical numbers get too high in the body, causing an imbalance, it leads to cellular and tissue damage, known as oxidative stress. ... while sunflower seeds have selenium, which helps ...
However, ingesting too much selenium — whether through Brazil nuts or otherwise — can cause selenium toxicity, which she says may lead to symptoms such as “gastrointestinal disturbances ...
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]
"Eating salmon every day can have both positive and potentially negative effects on your health," explains Jordan Hill, MCD, RD, CSSD, lead registered dietitian at Top Nutrition Coaching. "While ...
Brazil nuts are high in the antioxidant selenium, which has anti-inflammatory benefits. Just don’t overdo it: Eating too much selenium can lead to toxicity and symptoms like nausea, hair loss ...
Selenium is a vital nutrient in animals, [7] including humans. About 25 different selenocysteine-containing selenoproteins have so far been observed in human cells and tissues. [ 8 ] Since lack of selenium deprives the cell of its ability to synthesize selenoproteins, many health effects of low selenium intake are believed to be caused by the ...