Cranberry juice shows potential in reducing dental plaque bacteria

Researchers at the University of Illinois Chicago have found that unsweetened cranberry juice may help limit the growth of bacteria in dental plaque. A study led by Dr. Christine D. Wu involved both adults and children, testing the effects of 100% pure cranberry juice, a sweetened cranberry cocktail, and water.

The results indicated that participants who consumed pure, unsweetened cranberry juice experienced a reduction in bacterial regrowth and acid production. Specifically, the regrowth rate of bacteria was lower by an average of approximately 44% in adults and 33% in children compared to the control group.

While the findings are promising for cavity prevention, researchers noted that the study does not yet prove that drinking cranberry juice provides direct protection against tooth decay. The study utilized real-world products rather than laboratory extracts to better reflect consumer habits.