Document Detail

Price and maternal obesity influence purchasing of low- and high-energy-dense foods.
MedLine Citation:
PMID:  17921365     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Price can influence food purchases, which can influence consumption. Limited laboratory research has assessed the effect of price changes on food purchases, and no research on individual differences that may interact with price to influence purchases exists.
OBJECTIVE: We aimed to assess the influence of price changes of low-energy-density (LED) and high-energy-density (HED) foods on mother's food purchases in a laboratory food-purchasing analogue.
DESIGN: Mothers were randomly assigned to price conditions in which the price of either LED or HED foods was manipulated from 75% to 125% of the reference purchase price, whereas the price of the alternative foods was kept at the reference value. Mothers completed purchases for 2 income levels ($15 or $30 per family member).
RESULTS: Purchases were reduced when prices of LED (P < 0.01) and HED (P < 0.001) foods were increased. Maternal BMI interacted with price to influence purchases of HED foods when the price of HED foods increased (P = 0.016) and interacted with price to influence purchases of LED foods when the price of HED foods increased (P = 0.008).
CONCLUSION: These results show the relevance of considering price change as a way to influence food purchases of LED compared with HED foods and the possibility that individual differences may influence the own-price elasticity of HED foods and substitution of LED for HED foods.
Leonard H Epstein; Kelly K Dearing; Rocco A Paluch; James N Roemmich; David Cho
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  The American journal of clinical nutrition     Volume:  86     ISSN:  0002-9165     ISO Abbreviation:  Am. J. Clin. Nutr.     Publication Date:  2007 Oct 
Date Detail:
Created Date:  2007-10-08     Completed Date:  2007-11-29     Revised Date:  2013-06-06    
Medline Journal Info:
Nlm Unique ID:  0376027     Medline TA:  Am J Clin Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  914-22     Citation Subset:  AIM; IM    
University at Buffalo, Department of Pediatrics, Division of Behavioral Medicine, School of Medicine and Biomedical Sciences, Buffalo, NY 14214-3000, USA.
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MeSH Terms
Choice Behavior
Commerce / economics*
Costs and Cost Analysis
Cross-Over Studies
Energy Intake / physiology
Food / economics*
Food Habits / psychology*
Food Preferences / psychology
Health Behavior
Middle Aged
Mothers / psychology*
Nutritive Value
Obesity / psychology*
Socioeconomic Factors
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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