Burger King’s New Halloween Whopper Turning People’s Poop Green

I love me some Burger King, but I have to admit, I'm not too sure about this special Halloween Whopper. You know, the one with the black bun that's infused with A1 steak sauce.

Well, it appears that a lot of other folks aren't sure about it either. At least what it's doing to them after they eat it.

Some people are finding that there is a weird side of effect of the black bun of said Whopper -- it's turning their poop green.

Folks are complaining on Twitter, and some even sharing photos of their green waste. Ewww!

The ingredients for the black bun include the aforementioned A1 steak sauce and four different food colorings, so somehow they're teaming up to have this unique side effect on some people.

Fortunately for those affected there's almost no chance the green poop is a sign of any real health problems. But it makes for a hecuva story!