Altering shoppers' supermarket purchases to fit nutritional guidelines: An interactive information system

  • Winett R
  • Geller E
  • Mundy L
 et al. 
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Abstract

This study reports the results of one effort to help supermarket shoppers alter food purchases to make purchases (and meals) that are lower in fat and higher in fiber. A prototype interactive information system using instructional video programs, feedback on purchases with specific goals for change, weekly programs, and the ability to track user interactions and intended purchases was evaluated. The major dependent measure was users' actual food purchases as derived from participants' highly detailed supermarket receipts. After a 5- to 7-week baseline phase, participants were randomly assigned to an experimental or control condition for the 7- to 8-week intervention phase. A follow-up phase began 5 to 8 weeks after participants completed the intervention and discontinued use of the system. The results indicated that experimental participants, when compared to control participants, decreased high fat purchases and increased high fiber purchases during intervention, with evidence for some maintenance of effect in follow-up. Plans for increasing the use and impact of the system are discussed.

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Authors

  • Richard A. Winett

  • E. Scott Geller

  • Laurie L. Mundy

  • John F. Moore

  • Jana L. Wagner

  • Lee A. Hite

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