Strawberries may help whiten teeth because they contain an enzyme called malic acid, which can be found in some whitening toothpastes.
You can mash up the strawberry or just rub it on your teeth, cut in half. Leave the juice on your teeth for one minute and then rinse with water.
Some cosmetic and implant dentistry experts, also believe that the fiber in strawberries also behaves as a natural cleaner by removing bacteria from the teeth and mouth.