Warning labels for ultra-processed foods in the US

This study compares the health effects of a diet high in ultra-processed foods (like packaged snacks and sugary drinks) with a diet of less processed foods, to see how they affect your body. If you qualify, you'll eat these diets for a period of time, and researchers will monitor your health.

This study looks at how eating ultra-processed foods affects your body's metabolism. You'll receive meals and drinks to test your body's response.

This trial studies how eating processed foods affects the brain's reward system and food learning in teens. It uses MRI scans to look at brain activity and may help understand why some foods are hard to resist.

This study tests whether putting warning labels on sugary drinks helps people make healthier choices. You'll answer a short survey about your opinions.

This study looks at how eating ultra-processed foods (like packaged snacks and sugary drinks) affects heart health markers such as cholesterol and blood pressure. If you are generally healthy and have a stable weight, you may be able to join.

This study looks at how ultra-processed foods affect the brain and eating behavior in people who may have food addiction. You'll be asked to follow a specific diet and complete surveys, plus possibly a brain scan to see how your brain responds to food.