Chris van Tulleken

Is ultra-processed food causing obesity in children, and could it even be addictive? Dr Chris van Tulleken investigates as he undergoes an experiment that shocks the scientists.

Doctors and twins Chris and Xand van Tulleken's experiences through the Covid-19 pandemic have far more personal consequences than either could have imagined.

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Doctors Chris and Xand van Tulleken put competing health theories to the test with the help of 30 other pairs of identical twins.

This ground-breaking three-part series takes 75 dieters and employs the latest science to fashion a diet tailor-made to counteract the main reason they put on weight.

A groundbreaking expedition to the Arctic investigates the unknown world of icebergs, exploring the creation, life and death of these frozen behemoths for the first time

Your trusted guide through the challenge of keeping mentally and physically healthy while quarantined at home due to Covid-19.

Operation Ouch! is a British children's educational television series about the human body. It shows what happens in A&E, what doctors sometimes have problems with and great experiments. The show is hosted by twin brothers Dr Chris and Dr Xand van Tulleken. Series 5 was named "Operation Ouch! Hospital Takeover".

Based on the best-selling children's books and liberally splattered with guts, blood and poo, a group of British comedians offer an anarchic and unconventional take on some of history's most gruesome and funny moments, with topics including the Stone Age, the Middle Ages, the Egyptians and the Romans, among others.

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

In this major three-part series, Chris and Xand van Tulleken uncover the latest secrets of our bodies.

A social experiment in which Dr Chris van Tulleken takes over part of a GP surgery and stops patients' prescription pills.

A team of health experts meet ordinary people to reveal how quickly their organs, skin, muscles and brain are growing old. Using the latest science, they attempt to help them slow down the speed at which they’re ageing.

A British genealogy documentary series in which celebrities trace their ancestry, discovering secrets and surprises from their past.