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Med Hypotheses. 1997 Feb;48(2):183-7.

Is beta-carotene an antioxidant?

Author information

1
Schepens Eye Research Institute, Harvard Medical School, Boston, MA 02114, USA. crabtree@vision.eri.harvard.edu

Abstract

An hypothesis is presented that is opposed to the conventional viewpoint that beta-carotene is an in vivo free-radical scavenger. It is suggested that there are biochemical reasons why beta-carotene, other carotenoids, and especially their metabolites may be harmful to mammalian systems. Finally, the hypothesis that the macular pigment carotenoids, lutein and zeaxanthin, are free-radical scavengers is challenged.

PMID:
9076701
DOI:
10.1016/s0306-9877(97)90286-3
[Indexed for MEDLINE]

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