According to a study just completed in Japan, daily intake of green tea helps reduce the risk of periodontal or gum disease. The study looked at nearly 1,000 middle-aged Japanese men who initially underwent periodontal exams. Follow up exams showed that those individuals who consumed the higher levels of green tea had a significant decrease in periodontal or gum disease. Those consuming at least one cup of green tea daily had the best results.
Previous research indicates that green tea catechins inhibit periodontal bacterial growth and also exert an antioxidant effect that inhibits inflammation.