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provitamin A

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Word History and Origins

Origin of provitamin A1

First recorded in 1950–55
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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Anthocyanin accumulation in plants is associated with greater resistance to herbivory, fungal diseases, bacterial infections, heavy metal toxicity, and other environmental stresses, while carotenoids are a source of provitamin A in the human diet.

Read more on Science Daily

Vitamin A comes in two main forms, preformed vitamin A and provitamin A.

Read more on Salon

It contains so much provitamin A, a substance that transforms into vitamin A in the body, that its flesh has a distinctive orange tint.

Read more on National Geographic

The storied ‘golden rice’, which is enhanced with provitamin A and has been in limbo for 20 years, just a few months ago received approval in the Philippines for commercial cultivation.

Read more on Scientific American

There are essentially two forms of the vitamin: retinoids, or preformed vitamin A, found in animal products and carotenoids; and provitamin A, dark-colored plant pigments that are converted to vitamin A in the body.

Read more on Washington Post

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