A major U.S. study found that people who eat the most ultra-processed foods face a 47% higher risk of heart attack or stroke. Credit: Shutterstock Ultra-processed foods (UPFs) are heavily altered industrial products that contain added fats, sugars, starches, salts, and chemical additives such as emulsifiers. Common examples include sodas, packaged snacks, and processed meats. During manufacturing, many natural nutrients are removed, leaving foods that are very different from their original form.