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provitamin A


Definition: trivial name for carotenoids exhibiting qualitatively the biologic activity of ß-carotene, vitamin A precursors (a-, ß-, and ?-carotene and cryptoxanthin); contained in fish liver oils, spinach, carrots, egg yolk, milk products, and other green leaf or yellow vegetables and fruits.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.