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Series 1-Episode 11

Series 1-Episode 11

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Poo. It’s a subject of constant fascination for kids – and, it turns out, for Drs Xand and Chris Tulleken. They investigate how eating different foods can drastically affect your stools. They also demonstrate what happens when you donate blood and find out how it is processed to help save lives. The busy duo also visit an emergency Air Ambulance team.


Dr Xand visits the largest blood factory in the world and donates his blood to see how it is processed, to help save lives. Dr Chris meets the Midlands air ambulance crew.

Cast & Crew

Presenter Chris van Tulleken
Presenter Xand van Tulleken


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