In fact, they're often specifically designed to be irresistible, a scientist who used to work with UPF companies told Business Insider.
But over time, Smith said companies became more interested in enhancing food to make it irresistible to the point where people feel they can't stop eating it.
That's because sonic branding, or associating a sound with a product, can make us want to consume it, Smith said.
How a chocolate bar sounds when it snaps can be engineered.
So, similar to sound, companies use our sense of smell to grab our attention and make us crave their products.
Persons:
—, they're, Barry Smith, Ferrero, Smith, that's, you've, Coke, Mars
Organizations:
Service, Business, Centre, University of London