Antioxidants don't prevent GI cancers, but increase overall mortality

Question: Do antioxidants prevent gastrointestinal cancers?

Synopsis: This Cochrane review follows their usual rigorous methods of searching, identification of unpublished data, and data extraction. The authors included all trials that randomised participants to supplementation with antioxidants (β carotene; vitamins A, C, and E; and selenium, as different combinations or separately) versus placebo, and that reported …