Document Detail

Socioeconomic status, energy cost, and nutrient content of supermarket food purchases.
MedLine Citation:
PMID:  22424253     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The relative affordability of energy-dense versus nutrient-rich foods may promote socioeconomic disparities in dietary quality and obesity. Although supermarkets are the largest food source in the American diet, the associations between SES and the cost and nutrient content of freely chosen food purchases have not been described.
PURPOSE: To investigate relationships of SES with the energy cost ($/1000 kcal) and nutrient content of freely chosen supermarket purchases.
METHODS: Supermarket shoppers (n=69) were recruited at a Phoenix AZ supermarket in 2009. The energy cost and nutrient content of participants' purchases were calculated from photographs of food packaging and nutrition labels using dietary analysis software. Data were analyzed in 2010-2011.
RESULTS: Two SES indicators, education and household income as a percentage of the federal poverty guideline (FPG), were associated with the energy cost of purchased foods. Adjusting for covariates, the amount spent on 1000 kcal of food was $0.26 greater for every multiple of the FPG, and those with a baccalaureate or postbaccalaureate degree spent an additional $1.05 for every 1000 kcal of food compared to those with no college education. Lower energy cost was associated with higher total fat and less protein, dietary fiber, and vegetables per 1000 kcal purchased.
CONCLUSIONS: Low-SES supermarket shoppers purchase calories in inexpensive forms that are higher in fat and less nutrient-rich.
Bradley M Appelhans; Brandy-Joe Milliron; Kathleen Woolf; Tricia J Johnson; Sherry L Pagoto; Kristin L Schneider; Matthew C Whited; Jennifer C Ventrelle
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  American journal of preventive medicine     Volume:  42     ISSN:  1873-2607     ISO Abbreviation:  Am J Prev Med     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-03-19     Completed Date:  2012-07-12     Revised Date:  2013-12-17    
Medline Journal Info:
Nlm Unique ID:  8704773     Medline TA:  Am J Prev Med     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  398-402     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.
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MeSH Terms
Commerce / economics,  statistics & numerical data*
Data Collection
Dietary Fats
Educational Status
Energy Intake
Food / economics*,  statistics & numerical data
Food Analysis
Food Labeling / statistics & numerical data
Food Packaging / statistics & numerical data
Food Preferences*
Middle Aged
Nutritive Value*
Socioeconomic Factors
United States
Grant Support
Reg. No./Substance:
0/Dietary Fats

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

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