Multiple choice

Chemical compounds the body makes into the active forms of vitamins, also called provitamins.

  1. Water-soluble vitamin

  2. Precursor

  3. Fat-soluble vitamin

  4. Bioavailability

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A precursor, or provitamin, is an inactive compound that can be converted by the body into an active vitamin. For example, beta-carotene is a precursor that the body converts into active vitamin A.