Dominique Walker

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.

Liz Bonnin is setting out on a global mission to reveal the full scale of the world’s plastic problem – and explore ways in which this looming environmental disaster might be averted. As she chases plastic around the world, Liz is going to show us that this is a crisis far greater than we’d ever imagined…