The black-bunned Whopper has been available in other countries for years, and given the current buzz about it's side effects, some are wishing it stayed there.

As a special Halloween burger, the bun in "infused with A1 flavors", and has four different food colorings for the dark effect.  Somehow these things combine in your belly and produce a strange side-effect:  green poop.

Some are even complaining on Twitter....with photos.  (I accidentally saw one pic...I advise you do NOT. But if you want to, you can see one here.)

The good news is, there's very little chance this is a sign of any real health issues...once the bun has "run it's course", you'll be back to your more traditional-looking...poop.



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