A man trying to eat a half-pound glazed doughnut in 80 seconds as part of a Denver doughnut shop's eating challenge choked to death, one of two people who died in such contests this past weekend.

DENVER -- A man trying to eat a half-pound glazed doughnut in 80 seconds as part of a Denver doughnut shop's eating challenge choked to death, one of two people who died in such contests this past ...