Test Your Knowledge: All Things Nutrition!Share:FacebookPinterestTwitterMailWhen obtained from foods, beta-carotene is a(n) _____.30%Next Correct Incorrect Beta-carotene is an antioxidant and a precursor to vitamin A, but high doses in supplement form can act as a pro-oxidant. When obtained from foods, beta-carotene is a(n) _____. Free radical Poison Antioxidant Dangerous to the human body 30%