Abstract
Objective
This study tested the efficacy of a multicomponent supermarket point-of-purchase intervention
featuring in-person nutrition education on the nutrient composition of food purchases.
Design
The design was a randomized trial comparing the intervention with usual care (no treatment).
Setting and Participants
A supermarket in a socioeconomically diverse region of Phoenix, AZ. One hundred fifty-three
adult shoppers were recruited onsite.
Intervention
The intervention consisted of brief shopping education by a nutrition educator and
an explanation and promotion of a supermarket point-of-purchase healthful shopping
program that included posted shelf signs identifying healthful foods, sample shopping
lists, tips, and signage.
Main Outcome Measures
Outcomes included purchases of total, saturated, and trans fat (grams/1,000 kcal), and fruits, vegetables, and dark-green/yellow vegetables
(servings/1,000 kcal) derived through nutritional analysis of participant shopping
baskets.
Analysis
Analysis of covariance compared the intervention and control groups on food purchasing
patterns while adjusting for household income.
Results
The intervention resulted in greater purchasing of fruit and dark-green/yellow vegetables.
No other group differences were observed.
Conclusions and Implications
Long-term evaluations of supermarket interventions should be conducted to improve
the evidence base and to determine the potential for influence on food choices associated
with decreased chronic disease incidence.
Key Words
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Article info
Publication history
Published online: November 21, 2011
Identification
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© 2012 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.
