Milk
Not only can it help build strong bones, but milk is a great source of calcium. Calcium helps to repair and maintain tooth enamel to keep your teeth strong. Lactose intolerant? Don’t worry. Calcium-fortified soy milk is a great alternative to getting the same benefits as regular milk. However, it is important to keep in mind that milk also contains sugar which, if left on the teeth for too long, can cause tooth decay.