The top source of ultra-processed foods for both kids and adults was sandwiches, such as burgers, hot dogs and PB&Js, Williams said. That was followed by baked goods, salty snacks and sugary drinks. The report found that adults with higher incomes tended to eat fewer ultra-processed foods.

ABC News spoke to public health experts about what constitutes as an ultra-processed food and the negative effects they can have on human health.

More than half of Americans' calorie intake is from ultra-processed foods, according to a new report from the Centers for Disease Control and Prevention.