Water

Your teeth can also benefit from water. Water helps wash away food debris and keeps your saliva levels high. Believe it or not, saliva is actually your mouth’s best defense against tooth decay because it contains proteins and minerals that counteract enamel–eating acids. Saliva is made up of 95 percent water, so if you want to avoid unnecessary cavities do yourself a favor and stay hydrated. Water also displaces sugary drinks like soda and sweet flavored waters, which can damage tooth enamel and promote decay.