7/17/2014

People who lived in Sudan about 2,000 years ago kept their teeth clean by eating purple nutsedge, which helped impede the growth of bacteria, according to a study published in PLoS ONE. While studying the teeth of people buried in an ancient Sudan cemetery, researchers found that less than 1% had tooth decay problems and that each person had eaten the bitter tasting tubers, which could have been taken as food or medicine.

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