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This is a list of antioxidants naturally occurring in food. Vitamin C and vitamin E – which are ubiquitous among raw plant foods – are confirmed as dietary antioxidants, whereas vitamin A becomes an antioxidant following metabolism of provitamin A beta-carotene and cryptoxanthin.
Phenolic dietary antioxidants (2 C, 1 P) Pages in category "Phenol antioxidants" The following 27 pages are in this category, out of 27 total.
Grapes contain certain polyphenol compounds, although none has been shown to be an antioxidant in vivo. It is difficult to evaluate the physiological effects of specific natural phenolic antioxidants, since such a large number of individual compounds may occur even in a single food and their fate in vivo cannot be measured. [1] [6] [8]
Lycopene is an antioxidant commonly found in tomatoes — it has been shown to prevent cell damage and provide myriad benefits to the body, including but not limited to helping improve sperm count.
[1] [20] [23] [24] Flavonoids have negligible antioxidant activity in the body, and the increase in antioxidant capacity of blood seen after consumption of flavonoid-rich foods is not caused directly by flavonoids, but by production of uric acid resulting from flavonoid depolymerization and excretion. [1]
The phenolic unit can be found dimerized or further polymerized, creating a new class of polyphenol. For example, ellagic acid is a dimer of gallic acid and forms the class of ellagitannins, or a catechin and a gallocatechin can combine to form the red compound theaflavin, a process that also results in the large class of brown thearubigins in tea.
Vitamin E is the collective name for a set of eight related tocopherols and tocotrienols, which are fat-soluble vitamins with antioxidant properties. [ 81 ] [ 82 ] Of these, α-tocopherol has been most studied as it has the highest bioavailability , with the body preferentially absorbing and metabolising this form.
orange pigments . α-Carotene – to vitamin A carrots, pumpkins, maize, tangerine, orange.; β-Carotene – to vitamin A dark, leafy greens, red, orange and yellow fruits and vegetables.
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