Completely Licking Clean A Smudgy iPhone 5 Screen Will Give You Two Calories. Lick 245 And It’s Like Eating A Big Mac

YouTuber, Vsauce, posted a video claiming that “completely licking clean a smudgy iPhone 5 screen will give you two calories. If you were to lick clean 245 smudgy iPhone 5s, well, that would be the same as eating a Big Mac.” It appears that Vsauce is using data from a page on the University of Bristol’s Chemistry Department to do the math. Here’s the full video: