Question

which of the following foods is not a rich source of provitamin a?
beef
carrots
squash
sweet potato

Explanation:

Provitamin A (like beta - carotene) is mainly found in plant - based foods. Carrots, squash, and sweet potato are plant - based and rich in provitamin A. Beef is an animal - based food and is not a rich source of provitamin A.

Answer:

beef