One man had an unpleasant surprise when he found the human teeth in the hamburger he had bought in McDonald & apos; s from Japan.
The subject received a dispute McMuffin in the Japanese city of Kanazawa, Ishikawa.
He was about to take the bite of his hamburger when he realized he had teeth inside, and so he delivered the food to the authorities.
The Health Institute has carried out the necessary research on the product and the place.
A spokesman for McDonald's said it was unclear how the teeth would reach the hamburger, but the necessary steps would be taken to prevent it from happening again.