Which of the following foods would be the best dietary source of pre-formed vitamin A?

Question

Quizplus · Accepted Answer

Egg is the best dietary source of pre-formed vitamin A among the options given. Pre-formed vitamin A, also known as retinol, is found in animal products such as eggs, meat, and dairy. Carrots and cantaloupe contain beta-carotene, a precursor to vitamin A, which the body can convert to vitamin A, but it is not pre-formed. Rice generally does not contain significant amounts of vitamin A or its precursors unless it is fortified.

Which of the Following Foods Would Be the Best Dietary