ultra-processed foods

Americans consume more than half their daily calories from ultra-processed food. A new study finds consuming lots of this food is linked to a higher risk of many diseases.

Sure, they're tasty, but packaged snacks and meals can be packed with sugar, salt and a list of unpronounceable ingredients. So what are they doing to your health? Scientists are trying to find out.

"Landmark" study finds a highly processed diet spurred people to overeat compared with an unprocessed diet, about 500 extra calories a day. That suggests something about processing itself is at play.