The "Health-Halo" Effect, Or Why Your Butt's Bigger....

Are you health-conscious? Do you pay a lot of attention to the type of foods that you eat, but still find that your bootie and gut and blossoming?

Well, my friend (as McCain likes to say), it may be the result of the "Health Halo".

Pierre Chandon, a Frenchman who has been studying what researchers call the American obesity paradox. Why, as Americans have paid more and more attention to eating healthily, have we kept getting fatter and fatter?

Dr. Chandon’s answer, derived from laboratory experiments as well as field work at Subway and McDonald’s restaurants, is that Americans have been seduced into overeating by the so-called health halo associated with certain foods and restaurants.

Dr. Chandon and his frequent collaborator, Brian Wansink, the director of the Cornell Food and Brand Lab found that all of us, even professional dieticians, make systematic mistakes when estimating how many calories are on a plate. Experiments showed that putting a “low fat” label on food caused everyone, especially overweight people, to underestimate its calories, to eat bigger helpings and to indulge in other foods.

The researchers found that customers at McDonald’s were more accurate at estimating the calories in their meal than were customers at Subway, apparently because of the health halo created by advertisements like one showing that a Subway sandwich had a third the fat of a Big Mac. The health halo from Subway also affected what else people chose to eat, Dr. Chandon and Dr. Wansink reported last year after giving people a chance to order either a Big Mac or a 12-inch Italian sandwich from Subway. Even though the Subway sandwich had more calories than the Big Mac, the people ordering it were more likely to add a large nondiet soda and cookies to the order. So while they may have felt virtuous, they ended up with meals averaging 56 percent more calories than the meals ordered from McDonald’s.

“People who eat at McDonald’s know their sins,” Dr. Chandon said, “but people at Subway think that a 1,000-calorie sandwich has only 500 calories.” His advice is not for people to avoid Subway or low-fat snacks, but to take health halos into account.

Rest of story ....