Tea
茶
Green tea contains antioxidants called catechins that may tamp down the body's inflammatory response to the bacteria that cause gum disease. A study found that a daily cup of green tea significantly lowered Japanese men's risk of developing gum disease. The polyphenols in black tea can help destroy the growth of bacteria that cause bad breath too.
绿茶中含有一种被称为儿茶酸的抗氧化剂，可能会帮助人体增强对导致牙龈问题细菌的抵抗力。研究表明，一天一杯绿茶可以有效降低日本人患牙龈疾病的风险，红茶中含有的多酚类还可以帮助破坏导致口气的细菌滋生。