Most people know that drinking sugary drinks aren’t good for you. But this year old video by Maricv 84 is inspiring people even more to stay away from arguably the most famous sugary drink in the world, Coca Cola.

By adding just a few tablespoons of milk to a bottle of Coke, a very strange and disturbing reaction occurs. After an hour, the Coke seems to separate into a half clear and half dark liquid. The explanation given is that “it is a reaction of the Phosphoric Acid contained in the coca cola to the milk.”

This science experiment has gone viral with over 4 million views! So, are you going to drink Coke?