acting
- Irresistible: Why We Can't Stop Eating → Self
- What Are We Feeding Our Kids? → Presentor
- HealthCheck UK Live (TV) → Himself - Presenter
- Surviving the Virus: My Brother & Me → Self
- The Twinstitute (TV) → Himself - Presenter
- The Human Body: Secrets of Your Life Revealed (TV) → Self
- How to Stay Young (TV) → Self - Presenter
- The Doctor Who Gave Up Drugs (TV) → Self - Presenter
- What's the Right Diet for You? A Horizon Special (TV) → Himself - Presenter
- Operation Ouch! (TV) → Himself - Presenter
- Operation Iceberg (TV) → Himself - Presenter
- Horrible Histories (TV)
- The One Show (TV) → Self
- Who Do You Think You Are? (TV)
- Royal Institution Christmas Lectures (TV) → Himself
- Horizon (TV) → Presenter