Whiter teeth add to the beauty of the smile, don't they. To get those white teeth one has to know what foods to heat and what not to. Our teeth are porous, so they get stained easily. So a black coffee is sure to stain your teeth. If you are so fond of coffee, then you can add milk or cream to dilute it.
Even the tomato sauce can stain our teeth and stop us from having that beautiful smile. Acidic things also contribute to the discoloration of teeth. Blueberries which we think will change the color of the teeth are actually not the culprit. They are actually very healthy.
To have perfect looking teeth avoid fizzy drinks, but even if you have to have it then use a straw to drink it and last but not the least try to eat the fruits rather than drinking their juices.