![](http://www.alamy.com/thumbs/6/9FFC5BF3-4FC2-4116-9077-55F20D67F6D3/2BBKHMC.jpg)
Forms of vitamin A in food. Retinol, Carotenoid. Close up.
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Photo credit: © Stepan Popov / Alamy / Afripics
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Keywords: ballpoint, beta, carotene, carotenoid, form, health, healthy, lab, medical, medicine, paper, pen, pharmacy, provitamin, retinol, sheet, spreadsheet, supplement, type, vitamin, yellow