Do menus that list calories next to their food items actually do any good?
Researchers say so far, not really.
Carnegie Mellon University scientists studied the purchase habits of more than 1,000 lunchtime diners at two McDonald's restaurants that posted meals' calorie counts. Three groups of diners received different information. One group received recommended daily calorie intake, one received recommended per-meal calorie intake and one group received no additional information.
They found that providing diners with recommended daily calorie information or suggested calories for each meal did not help them make better use of the calorie information on the menus.
It may be unrealistic to expect diners to count and keep track of their daily calories, researchers concluded.
The study was published in the American Journal of Public Health.