Cranberries 'block tooth decay'

Cranberries may help prevent tooth decay and cavities, research suggests.

Scientists have found a compound in the fruit can stop bacteria from clinging to the teeth, blocking the formation of damaging plaque deposits.

However, researcher Dr Hyuan Koo warned many cranberry-containing products were loaded with sugar and consuming large amounts could lead to tooth decay.

The study, by the University of Rochester Medical Center in New York, will be published in Caries Research.

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