OMAHA - Four of the biggest makers of microwave popcorn are working to remove a flavoring chemical from their products that's linked to a lung ailment in popcorn plant workers while reassuring consumers about the snack's safety.
On Tuesday, Denver's National Jewish Medical and Research Center warned that consumers also could be in danger from the buttery flavoring, diacetyl. Doctors there believe they have the first case of a consumer who developed lung disease from the fumes of microwaving popcorn several times a day for years.
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