How did ultra-processed foods take over, and what are they doing to us?

Sliced supermarket bread, ham, cheese, crisps, a fruit-flavoured
yoghurt and a fizzy drink. If this sounds like a standard lunch,
you’re not alone. The average person in the UK gets more than 50%
of their calories from ultra-processed foods – otherwise known as
‘industrially produced edible substances’. Madeleine Finlay speaks
to Dr Chris van Tulleken about what ultra-processed foods are
really made of, how they have become a major part of our diets, and
the impact they are having on our health. Help support our
independent journalism at theguardian.com/sciencepod