Six years after New York City mandated calorie counts in chain restaurants, a study published in Health Affairs shows calorie labels on their own may not reduce the overall number of calories that consumers order at fast-food chains. The researchers analyzed information gathered from 7,699 fast-food diners in New York City and nearby New Jersey cities. The study, in which researchers compared food orders in places with and without calorie counts, is believed to be the first long-term analysis of the effects of menu labeling in the United States.
Calorie counts in the 2013–2014 analysis averaged between 804 and 839 per meal at menu-labeled restaurants, and between 802 and 857 per meal at non-labeled eateries; whereas, they averaged 783 per meal for labeled restaurants and 756 per meal for non-labeled restaurants shortly after the policy was introduced. For the surveys, diners entering the fast-food restaurant were asked to return their itemized receipt to research assistants and answer some follow-up questions in person in exchange for two dollars.
The researchers found that the average number of calories bought by patrons at each sitting between January 2013 and June 2014 was statistically the same as those in a similar survey of 1,068 fast-food diners in 2008, when New York City initially imposed menu labeling. Diners were surveyed at major fast-food chains: McDonald’s, Burger King, KFC, and Wendy’s.
“Our study suggests that menu labeling, in particular at fast-food restaurants, will not on its own lead to any lasting reductions in calories consumed,” says study senior investigator Brian Elbel, associate professor in the Dept. of Population Health at NYU Langone.