The properties of Selenium in supplements
|TBS Ingredient ID (TBSI ID):||IS2FE9A0|
| PubChem CID: |
U.S. National Library of Medicine (PubChem)
| InChI Key: |
International Chemical Identifier hash (InChIKey) computed from chemical structure using the International Union of Pure and Applied Chemistry (IUPAC) standard
| CAS: |
A proprietary registry number assigned by the Chemical Abstracts Service (CAS) division of the American Chemical Society (ACS)
| EC Number: |
A seven-digit regulatory identifier currently assigned by the European Chemicals Agency (ECHA) known as a European Community (EC) number
| ATC code: |
WHO ATC Classification System. The Anatomical Therapeutic Chemical (ATC) Classification System is used for the classification of drugs. This pharmaceutical coding system divides drugs into different groups according to the organ or system on which they act and/or their therapeutic and chemical characteristics
Selenium is an ingredient in many multivitamins and other dietary supplements, including infant formula. It is a component of the antioxidant enzymes glutathione peroxidase and thioredoxin reductase (which indirectly reduce certain oxidized molecules in animals and some plants). It is also found in three deiodinase enzymes, which convert one thyroid hormone to another.
Selenomethionine 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.
Selenomethionine’s antioxidant activity arises from its ability to deplete reactive oxygen species. Selenium and methionine also play separate roles in the formation and recycling of glutathione, a key endogenous antioxidant in many organisms, including humans.