A scientist who used to advise ultra-processed food companies shares 2 surprising ways they make food irresistible

• Ultra-processed foods have been linked to health problems including type 2 diabetes.
• Professor Barry Smith used to work with UPF companies to enhance their products.
• Companies appeal to all the senses, including hearing, to make their food appealing.

It's no secret that ultra-processed foods like potato chips, cookies, and chocolate, are easy to overeat. In fact, they're often specifically designed to be irresistible, a scientist who used to work with UPF companies told Business Insider. He shared two surprising ways UPFs are manufactured to make us crave them.