title: A Point-of-Purchase Intervention Using Grocery Store Tour Podcasts About Omega-3s Increases Long-Term Purchases of Omega-3-Rich Food Items.
abstract: To assess the impacts associated with a grocery store tour point-of-purchase intervention using podcasts about omega-3 fatty acid (n-3)-rich food items.
  
  
  
  A repeated-measures secondary data analysis of food purchase records obtained from a convenience sample of shoppers' loyalty cards.
  
  
  
  Shoppers (n = 251) who had listened to podcasts regarding n-3-rich foods while shopping.
  
  
  
  The number of omega-3-rich food purchases made according to food or food category by participants determined via spreadsheets obtained from grocery store chain.
  
  
  
  Descriptive statistics were performed on demographic characteristics. Wilcoxon signed-rank tests were used to assess whether food purchases increased from 6 months before to 6 months after intervention. Correlations assessed the relationship between intentions to purchase n-3-rich foods expressed on the intervention day with actual long-term n-3-rich food purchases. Nonparametric Kruskal-Wallis ANOVAs and Wilcoxon signed-rank tests were used to analyze differences between changes made and demographic variables (ie, participants' gender, race, and education levels).
  
  
  
  Most shoppers (59%) increased n-3-rich food purchases, with significant mean purchase changes (t[172] = -6.9; P < .001; pre = 0.2 ± 0.7; post = 3.6 ± 5.1).
  
  
  
  Podcasts are promising nutrition education tools. Longer studies could assess whether lasting change results from podcast use.
authors.affiliation: Public Health Solutions, New York, NY.
authors.forename: Deepika
authors.initials: D
authors.lastname: Bangia
authors.affiliation: Department of Food Science, Rutgers, The State University of New Jersey, New Brunswick, NJ.
authors.forename: Donald W
authors.initials: DW
authors.lastname: Shaffner
authors.affiliation: Department of Nutritional Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ. Electronic address: dkeenan@njaes.rutgers.edu.
authors.forename: Debra M
authors.initials: DM
authors.lastname: Palmer-Keenan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002755:Choice Behavior; D004032:Diet / Q000706:statistics & numerical data*; D015525:Fatty Acids, Omega-3; D005260:Female; D005523:Food Supply; D006266:Health Education / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D000068997:Smartphone; D057211:Webcasts as Topic; D055815:Young Adult
chemical_list: D015525:Fatty Acids, Omega-3
keywords: Theory of Reasoned Action; grocery store; health education; omega-3 fatty acids; podcasts; smartphones