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Selenium is a nutrient that is naturally present in many foods, added to others and is also available as a dietary supplement in pill, powder and liquid form, explains Perri Halperin, a ...
Selenium has a protective effect towards mercury toxicity. Mercury binds to selenium with high affinity, so this metal can inhibit selenium-dependent enzymes. However, increased selenium intake can preserve the enzyme activities, reducing the adverse effects caused by mercury exposure. [46] [47]
Selenium came to medical notice later because of its toxicity to industrial workers. Selenium was also recognized as an important veterinary toxin, which is seen in animals that have eaten high-selenium plants. In 1954, the first hints of specific biological functions of selenium were discovered in microorganisms by biochemist, Jane Pinsent.
Brazil nuts are a particularly rich source of selenium, with just 28 g (1 oz) supplying 544 micrograms of selenium or 10 times the DV of 55 micrograms. [37] [38] However, the amount of selenium within batches of nuts may vary considerably. [39] The high selenium content is used as a biomarker in studies of selenium intake and deficiency.
Mushrooms also contain an antioxidant known as selenium, which fights damaging free radicals that could otherwise contribute to aging, cancer and heart disease.
“Plus, canned tuna is loaded with vitamin B12, gives you a good dose of vitamin D, and comes with minerals like selenium, an awesome antioxidant that keeps your immune system strong and your ...
Tuna and sardines, which are rich in selenium and vitamin D. Oysters, which are rich in zinc. Citrus fruits, ... prepackaged foods, and other foods that are high in refined sugars and saturated fats.
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]