Menu Labeling Regulations and Calories Purchased at Chain Restaurants
2013
Background The federal menu labeling law will require chain restaurants to post caloric information on menus, but the impact of labeling is uncertain. Purpose The goal of the current study was to examine the effect of menu labeling on calories purchased, and secondarily, to assess self-reported awareness and use of labels. Design Single-community pre–post–post cross-sectional study. Data were collected in 2008–2010 and analyzed in 2011–2012. Setting/participants 50 sites from 10 chain restaurants in King County, Washington, selected through stratified, two-stage cluster random sampling. A total of 7325 customers participated. Eligibility criteria were: being an English speaker, aged≥14 years, and having an itemized receipt. The study population was 59% male, 76% white non-Hispanic, and 53% aged Intervention A regulation requiring chain restaurants to post calorie information on menus or menu boards was implemented. Main outcome measures Mean number of calories purchased. Results No significant changes occurred between baseline and 4–6 months postregulation. Mean calories per purchase decreased from 908.5 to 870.4 at 18 months post-implementation (38 kcal, 95% CI=−76.9, 0.8, p =0.06) in food chains and from 154.3 to 132.1 (22 kcal, 95% CI=−35.8, −8.5, p =0.002) in coffee chains. Calories decreased in taco and coffee chains, but not in burger and sandwich establishments. They decreased more among women than men in coffee chains. Awareness of labels increased from 18.8% to 61.7% in food chains and from 4.4% to 30.0% in coffee chains (both p p p Conclusions Mean calories per purchase decreased 18 months after implementation of menu labeling in some restaurant chains and among women but not men.
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