Adding milk in tea is mainly a cultural phenomenon, but of course there are those who want to experiment. There are people, who look at this with weirdness and read about it with a grain of salt. However, if you are one of those skeptics, after you read this article you might change your mind.
Little bit of milk in the tea can help to whiten teeth, according to research published in the International Journal of Dental Hygiene. Some scientists argue that this combination is more powerful then toothpastes that contain bleach and are intended to provide you with a brighter smile.
In fact, milk contains a protein called casein. It binds with tannin, an ingredient which is credited for dark spots on the teeth, so it prevents them. Of course, the taste of tea enriched with a little milk is better.