What is a "dirty soda"? The latest drink trend and its health impact, explained.

TikTok users are slurping on a new type of bubbly: Dirty sodas, a mixed drink that combines your favorite soft drink with add-ins like cream or coffee creamer and flavored syrups and sweeteners. 

Popular combinations to hit social media include combos like Dr. Pepper with coconut creamer and lime as well as Diet Coke with protein milk. 

Dirty sodas started bubbling up a few years ago but recently gained nationwide attention in the reality series "The Secret Lives of Mormon Wives," which featured Utah-based dirty soda shop "Swig." Now, the drink mix has spiraled into a social media obsession, with people trying out different combinations and sharing recipes online.