You’ll Never Guess What Burger King’s Halloween Burger Does to You

The scariest part of Burger King’s Halloween Whopper doesn’t happen until after you eat it.

Something in the burger’s pitch-black bun turns eaters’ poop a ghastly bright green — sometimes for as long as three days . . .

Not everybody was amused by the frightening after-effects of the Halloween treat, with some even vowing to never eat the burger again.

“Yesterday I had the Halloween Whopper,” added Daniel Rodriguez. “Today my poop is green. Yesterday was the last time I’ll have the Halloween Whopper.”

It is unclear what ingredients in the black Whopper turn stool such a haunting color, but a spokesperson for the fast food giant told ABC news that the bun contains less than 1% food dye. (Read more from “You’ll Never Guess What Burger King’s Halloween Burger Does to You” HERE)

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