WARNING: Burger King’s Halloween Black Whopper Will Cause Your Poop to Turn Green

You might have finished eating your black bun burger but you haven't seen nothing yet.
You might have finished eating your black bun burger but you haven't seen nothing yet.

There are quite a few people in Twitterland with a serious case of the green poops.

Burger King recently unveiled their Black Whopper for Halloween. It has some people complaining about green poop, and others really loving their green poop.