‘I won’t send off my poo’: Dr Chris van Tulleken on ultra-processed food, his Christmas lectures and gut analysis

Exclusive: Author to explore really fun' science of food and diet for Royal Institution's annual broadcast

Walk into any supermarket and the choice of foods is enormous, from brightly coloured breakfast cereals to pre-packed lasagnes. But for many, deciding what to add to the basket has never been harder, as concerns grow over industrially produced items.

You might think Dr Chris van Tulleken, as the author of the bestselling book Ultra-Processed People - an investigation of how aggressively marketed products created by the food industry are packed with ingredients engineered to make us overeat - would be just the person to ask for help.