Many diners took to Twitter to share their experience of the limited edition ‘Halloween Whopper’ and one also posted photographic evidence.
One diner wrote, “Yesterday I ate a Halloween Whopper and now the colour of my poop is blue green. Where my brown poo?”
Another said “#HalloweenWhopper #GreenPoop is a real thing. Don’t get too scared after eating it like I did.”
Earlier, Burger King launched the’ Halloween Whopper’ sandwich, which featured ‘black buns’ baked in A1 steak sauce.
The special edition burger had a beef patty, melted American cheese, tomatoes, lettuce, mayo, pickles and onions.