Have you ever wondered what happens to your dinner once you've swallowed it?
Well, so did Michael Mosley. The presenter swallowed the camera as part of a BBC TV show.
It showed the route food takes from being swallowed, all the way down to the stomach.
You could even see small bits of food that he had for his breakfast!
"Guts: The Strange and Mysterious World of the Human Stomach" is on BBC Four at 9pm on Thursday 12 July and online afterwards on the BBC's iPlayer.