Mar 22, 2019 · Mainly, β-carotene and, to a certain extent, α-carotene are responsible for the synthesis of vitamin A inside the animal body. Looking at the sources, β-carotene occurs in cantaloupe, mangoes, papaya, carrots, sweet potatoes, spinach, kale, and pumpkin while α-carotene occurs in pumpkin, carrots, tomatoes, collards, tangerines, winter ...
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