‘Don’t buy groceries on an empty stomach’

Most people know the age-old diet advice about grocery shopping when you are hungry: You are more likely to buy fattening,unhealthy foods. So avoid it.

Written by New York Times | New York | Published: May 18, 2013 3:47 am

Most people know the age-old diet advice about grocery shopping when you are hungry: You are more likely to buy fattening,unhealthy foods. So avoid it. But the weight loss maxims found in diet books do not always hold up in the real world. So two researchers at Cornell University recently devised an experiment that put this notion to the test. The study,published in JAMA Internal Medicine,was carried out in two phases. In the first,68 men and women were brought into a lab on two separate days after having been told not to eat for five hours. Then they were allowed to “shop” for food in a simulated grocery store,which offered low-calorie options like fruits,vegetables and chicken breasts,as well as higher-calorie junk foods. Before shopping,half of the subjects were given a snack. Both groups ultimately purchased a similar number of items,but those who shopped while hungry picked the highest-calorie foods.

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