Document Detail

Supermarket discounts of low-energy density foods: Effects on purchasing, food intake, and body weight.
MedLine Citation:
PMID:  23596089     Owner:  NLM     Status:  Publisher    
Objective. To assess the effects of a 50% discount on low-energy density (ED) fruits and vegetables (F&V), bottled water, and diet sodas on shoppers' purchasing, food intake, and body weight. Design and Methods. A randomized, controlled trial was conducted at two Manhattan supermarkets, in which a 4-week baseline period (no discounts) preceded an 8-week intervention period (50% discount), and a 4-week follow-up period (no discounts). Twenty-four hour dietary recalls, as well as body weight and body composition measures were obtained every 4 weeks. Participants (n=47, 33f; 14m) were overweight and obese (BMI≥25) shoppers. Results. Purchasing of F&V during intervention was greater in discount group than in control group (P<0.0001). Purchasing of these items by discount group relative to control group during follow-up was reduced from intervention (P=0.002), but still remained higher than during baseline (P=0.01), indicating a partially-sustained effect. Intake of F&V increased from baseline to intervention in discount group relative to control group (P=0.037) and was sustained during follow-up. Body weight change did not differ significantly between groups, although posthoc analysis indicated a change within the discount group (-1.1 kg, P=0.006) but not within the control group. Conclusions. Discounts of low-ED F&V led to increased purchasing and intake of those foods.
Allan Geliebter; Yi Han Ian Ang; Maria Bernales-Korins; Dominica Hernandez; Christopher N Ochner; Tatiana Ungredda; Rachel Miller; Laura Kolbe
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-4-17
Journal Detail:
Title:  Obesity (Silver Spring, Md.)     Volume:  -     ISSN:  1930-739X     ISO Abbreviation:  Obesity (Silver Spring)     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-4-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101264860     Medline TA:  Obesity (Silver Spring)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 The Obesity Society.
New York Obesity Nutrition Research Center, St. Luke's-Roosevelt Hospital Center, Columbia University Medical Center, New York, NY; Department of Psychology, Touro College, NY, NY, 10010.
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