Santa's round, soft features are all part of the charm. Think of it this way: Would you rather have a jolly old soul selling you sugary snacks and drinks, or a skinny pious guy with a walking stick? Another theory: His belt-busting gut could simply be from all those snacks left out by children on Christmas Eve. One infographic playfully calculates that thanks to the hundreds of millions of kids who leave out cookies and milk, Santa consumes close to 38 billion calories every Christmas Eve.