provitamin

Noun

Meaning

vitamin precursor; a substance that is converted into a vitamin in animal tissues

Synonyms

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Hyponyms

Phrases with the word

Examples

A primary vitamin A deficiency occurs among children and adults who do not consume an adequate intake of provitamin A carotenoids from fruits and vegetables or preformed vitamin A from animal and dairy products. Source: Internet

Hydrolysis of retinyl esters results in retinol, while provitamin A carotenoids can be cleaved to produce retinal by carotene dioxygenase in the intestinal mucosa. Source: Internet

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