The final chapter in the journey of food through our digestive system: how bacteria transforms undigested matter into waste.
- The large intestine is around 1.5m long and 6-7cm wide.
- The large intestine is home to trillions of 'good' bacteria that feed on the undigested food, or roughage, that enters it.
- As bacteria in the gut combine with undigested food mucus is added to create faeces.
- The faeces are then released into the rectum and eventually the anus, where it will be passed.
It takes about six seconds for food to travel from your mouth to your stomach.
"Shall I start the Magic Show?"
About four hours before it reaches your small intestine.
"Kentucky fried chicken and a pizza..."
And after spending some 12 hours in your body, the undigested food now enters ...