_________are substances found in foods that are not in a form directly usable by the body, but that can be converted into an active form once they are absorbed; however vitamins found in foods that are already in the active form, called _________vitamins, do not undergo conversion.

Question

Quizplus · Accepted Answer

Provitamins are substances found in foods that are not directly usable by the body but can be converted into an active form once absorbed. Preformed vitamins, on the other hand, are already in an active form when found in foods and do not require conversion.

_________Are Substances Found in Foods That Are Not in a Form