DRINKS maker Coca-Cola has admitted using severed human heads to add a touch of piquancy.

After withdrawing a flame retardant from some of its products, the corporation also revealed the horrifying nature of the enigmatic ‘natural flavors’ mentioned on its cans.

A spokesman said: “We drop a man’s head into the distillation vats, that’s where coke gets its unique spicy flavour from.

“We fish the severed head out at the end, as if it were a cinnamon stick.

“It depends what’s lying around the factory really, the basic principle is to just lob anything in and then sweeten the living shit out of it.”