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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. Selenium-containing proteins are produced from inorganic selenium via the intermediacy of selenophosphate (PSeO 3 3−).
Carrots, squash, broccoli, sweet potatoes, tomatoes (which gain their color from the compound lycopene ), kale, mangoes, oranges, seabuckthorn berries, wolfberries (goji), collards, cantaloupe, peaches and apricots are particularly rich sources of beta-carotene, the major provitamin A carotenoid. Vitamin C (ascorbic acid) is a water- soluble ...
Micronutrients are nutrients such as vitamins and minerals required by organisms in varying quantities throughout life to orchestrate a range of physiological functions to maintain health. The following is a list of micronutrients used by various living organisms. For human-specific nutrients, see Mineral (nutrient).
Because selenium is an essential element, sodium selenite is an ingredient in dietary supplements such as multi-vitamin/mineral products, but supplements that provide only selenium use L-selenomethionine or a selenium-enriched yeast. The US Food and Drug Administration approved a selenium supplement to animal diets; the most common form is ...
Vitamin C is an essential nutrient involved in the repair of tissue, the formation of collagen, and the enzymatic production of certain neurotransmitters. It is required for the functioning of several enzymes and is important for immune system function. [6] It also functions as an antioxidant.
The following is a list of phytochemicals present in commonly consumed foods. This list is incomplete ; you can help by adding missing items . ( August 2008 )
Selenium yeast. Selenium yeast is a feed additive for livestock, used to increase the selenium content in their fodder. It is a form of selenium currently approved for human consumption in the EU and Britain. [1] Inorganic forms of selenium are used in feeds (namely sodium selenate and sodium selenite, which appear to work in roughly the same ...
Micronutrient. Micronutrients are essential dietary elements required by organisms in varying quantities to regulate physiological functions of cells and organs. [1] [2] Micronutrients support the health of organisms throughout life. [3] [4] [5] In varying amounts supplied through the diet, micronutrients include such compounds as vitamins and ...