The absence of the healthy message doubled the number of people choosing the healthy snack. The health message made things worse. This may be the remedy-messaging boomerang effect in action. Simultaneously offering a temptation with a reminder about how they can dig themselves out justifies the excuse to indulge. Subconsciously, it may give the chicken-y chip eater the rationalization that they can just work it off the next day at the gym, even if that day never comes.
