Calorie labels on restaurant menus don't stop diners from overindulging

"Evidence is mounting that calorie labels — promoted by some nutritionists and the restaurant industry to help stem the obesity crisis — do not steer most people to lower-calorie foods. Eating habits rarely change, according to several studies. Perversely, some diners see the labels yet consume more calories than usual. People who use the labels often don’t need to. (Meaning: They are thin.)"