When calorie data on sugary drinks is displayed in convenience stores, teenagers buy fewer of them, especially African-Americans and children from lower-income neighborhoods, researchers from Johns Hopkins Bloomberg School of Public Health reported in the American Journal of Public Health (11.15.2011).
Sara Bleich, PhD. and team set out to determine how three ways of providing teenagers with calorie data might impact on their purchasing and consumption of sugary drinks. They placed three kinds of different posters:
Calorie poster - one said that a fruit drink has 250 calories
Percentage of daily intake poster - it said that the fruit drink had 10% of their daily recommended calorie need
Physical activity poster - this one informed that they would need to run for 50 minutes in order to use up the calories contained in a fruit drink or soda
The authors found that purchases of sugary drinks dropped by approximately 40% if posters were displayed compared to providing no information at all.
The physical activity poster had the greatest impact - this reduced sugar-sweetened drink purchases by 50%.
The authors informed that their study is unique in comparing how different types of posters influence teenagers' purchasing habits.
No comments:
Post a Comment