Chris and Xand van Tulleken answer questions from the audience, after their talk on Ultra-processed foods and what they do to our bodies.


Chris van Tulleken is an infectious diseases doctor at UCLH, and one of the BBC’s leading science presenters having worked on many flagship Health & Science programmes. During 2020, Chris shared his own personal experience of COVID19 in the BBC One documentary Surviving the Virus: My Brother & Me. He also hosted the two Horizon Coronavirus specials for BBC Two. In summer 2021, Chris and Xand launched their first podcast, A Thorough Examination with Drs Chris and Xand and reached the top spot across a variety of podcast charts. The audio series sees Chris send Xand on a journey to explore his relationship with ultra-processed food. Xand meets the world’s leading experts on food, weight, taste and addiction whilst going on a UPF binge in a bid to see if he can learn to hate it. In 2019, Chris alongside his twin brother Xand, put competing health theories to the test with the help of 30 other pairs of identical twins in 'Twinsitute' for BBC Two. The pair also hosted 'Planet Child' a ‘landmark perspective on global childhood development' for ITV. Dr Xand’s main interests and expertise lie in Public Health, Medicine, Humanitarian Aid and Anthropology and is one of the BBC’s leading science presenters having worked on many flagship Health & Science programmes. Alongside his twin brother Chris, Xand presents CBBC’s Operation Ouch! The series has been a huge global success, involving self-experimentation and lab work to find weird and wonderful ways of showing kids what goes on in hospitals, and inside our bodies. The eighth series has just started filming, previous series having won many nominations and two children’s BAFTA awards plus a Broadcast Award for Best Children’s programme. Their Operation Ouch tours of Australia in January 2018 and 2020 were massive hits, selling out all venues including the Sydney Opera House. The Operation Ouch UK residency at The Apollo Theatre in London’s West End also received rave reviews.


Size: 5616px × 3744px
Location: ExCeL London, One Western Gateway, Royal Victoria Dock, London, E16 1XL
Photo credit: © John Gaffen / Alamy / Afripics
License: Licensed
Model Released: No

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