According to a new study by the National Institute for Health, processed foods (as we've long suspected) cause you to eat more than less-processed foods with equal amounts of calories and nutrition. The study enrolled 20 people whose weight had been stable. This is important because any changes during the study would correlate to the impact of the study on the person's body. The study created two diets, a processed-food diet and a non-processed-food diet. Both diets were similar in the amount of calories, protein, sugar, fiber, etc....