Teeth whitener: Cheese and yogurt
Incorporate more dairy products into your daily diet for a whiter smile. Similar to broccoli, dairy products like cheese and yogurt cause your mouth to produce excess saliva, which helps to break down stains on enamel.
However, unlike broccoli, cheese has an additional whitening effect as it contains lactic acid, which is similar to malic acid, as it helps to dissolve superficial stains on the surface of your teeth.