Food on the plate must be converted into a mashed-up, gooey liquid for the digestive system to be able to split it up into its constituent parts: proteins, carbohydrates, fats, vitamins ...

Narrator: Why do we eat food? I mean, really, wouldn't life be far simpler if we didn't have to? Well the thing is we need energy to keep on living. Each part of our body needs to be recharged ...

Food that cannot be broken down is released from the body as faeces (poo). The digestive system is made up of key parts, each of which has a different function. Food passes through most of these ...