Healthy and Unhealthy Food Prices across Neighborhoods and Their Association with Neighborhood Socioeconomic Status and Proportion Black/Hispanic
This paper evaluates variation in food prices within and between neighborhoods to improve our understanding of access to healthy foods in urbanized areas and potential economic incentives and barriers to consuming a higher-quality diet. Prices of a selection of healthier foods (dairy, fruit juice, and frozen vegetables) and unhealthy foods (soda, sweets, and salty snacks) were obtained from 1953 supermarkets across the USA during 2009–2012 and were linked to census block group socio-demographics. Analyses evaluated associations between neighborhood SES and proportion Black/Hispanic and the prices of healthier and unhealthy foods, and the relative price of healthier foods compared with unhealthy foods (healthy-to-unhealthy price ratio). Linear hierarchical regression models were used to explore geospatial variation and adjust for confounders. Overall, the price of healthier foods was nearly twice as high as the price of unhealthy foods ($0.590 vs $0.298 per serving; healthy-to-unhealthy price ratio of 1.99). This trend was consistent across all neighborhood characteristics. After adjusting for covariates, no association was found between food prices (healthy, unhealthy, or the healthy-to-unhealthy ratio) and neighborhood SES. Similarly, there was no association between the proportion Black/Hispanic and healthier food price, a very small positive association with unhealthy price, and a modest negative association with the healthy-to-unhealthy ratio. No major differences were seen in food prices across levels of neighborhood SES and proportion Black/Hispanic; however, the price of healthier food was twice as expensive as unhealthy food per serving on average.
KeywordsNutrition guidelines Food price Socioeconomic status Race
Compliance with Ethical Standards
This research was partially supported by US Department of Health and Human Services. National Institutes of Health (NIH), P60 MD002249 (National Institute of Minority Health and Health Disparities).
- 1.U.S. Department of Health and Human Services and U.S. Department of Agriculture. 2015–2020 Dietary Guidelines for Americans. 8th Edition. Washington, DC. Available at http://health.gov/dietaryguidelines/2015/guidelines/.
- 7.Frazao E, Andrews M, Smallwood D, Prell M. Food Spending Patterns of Low-Income Households Will Increasing Purchasing Power Result in Healthier Food Choices? Can Food Stamps Do More to Improve Food Choices? An Economic Perspective. 2007;Economic Information Bulletin Number 29–4. Washington, D.C.: U.S. Department of Agriculture, Economic Research Service.Google Scholar
- 16.Leibtag E. Where You Shop Matters: Store Formats Drive Variation in Retail Food Prices. https://www.ers.usda.gov/amber-waves/2005/november/where-you-shop-matters-store-formats-drive-variation-in-retail-food-prices/ Last accessed April 17 2017: USDA - ERS; 2005.
- 19.IRI. Academic Data Set. Available at: http://www.iriworldwide.com/solutions/Academic-Data-Set. Accessed June 22, 2015.
- 21.Symphony IRI. About Us. 2015. Available at https://www.iriworldwide.com/en-US/company/about-IRI. Accessed 12 March 2015.
- 22.United States Food and Drug Administration. CFR - Code of Federal Regulations Title 21, 21CFR101.12. http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/cfrsearch.cfm?fr=101.12 Accessed June 22 2015; 2014.
- 23.Kern DM, Auchincloss AH, Ballister L, Robinson LF. Neighbourhood variation in the price of soda relative to milk and its association with neighbourhood socio-economic status and race. Public Health Nutrition. 2016;19(18):3386–3396Google Scholar
- 24.Turcsik R. Wiping out the competition. November 1, 2014. Available at: http://www.groceryheadquarters.com/2014/11/paper-products/. Accessed June 17, 2015.
- 25.California Center for Public Health Advocacy, PolicyLink, The UCLA Center for Health Policy Research. Designed for Disease: The Link Between Local Food Environments and Obesity and Diabetes. 2008. Available at http://healthpolicy.ucla.edu/publications/Documents/PDF/Designed%20for%20Disease%20The%20Link%20Between%20Local%20Food%20Environments%20and%20Obesity%20and%20Diabetes%203.pdf
- 27.United States Department of Agriculture, Economic Research Service. Urban Influence Codes: Documentation. May 10, 2013. Available at: http://www.ers.usda.gov/data-products/urban-influence-codes/documentation.aspx. Accessed June 22, 2015.
- 28.Grimm KA, Moore LV, Scanlon KS. Access to healthier food retailers - United States, 2011. MMWR Surveill Summ. 2013;62(Suppl 3):20–6.Google Scholar
- 30.Jesse E, Cropp B. Basic Milk Pricing Concepts for Dairy Farmers. University of Wisconsin Extension – Cooperative Extension. 2008;Publication a3379. Available from: http://future.aae.wisc.edu/publications/a3379.pdf. Accessed June 22, 2015.
- 38.Okrent A, Alston JM. The Demand for Disaggregated Food-Away-From-Home and Food-at-Home Products in the United States. ERR-139, U.S. Department of Agriculture, Economic Research Service. August 2012.Google Scholar
- 41.The Council for Community and Economic Research (C2ER). Cost of Living Index Manual. Available at: https://www.coli.org/surveyforms/colimanual.pdf; 2015. Last accessed: June 25, 2016.
- 42.USDA/CNPP. Development of the CNPP prices database. 2008. Available from: http://www.cnpp.usda.gov/sites/default/files/usda_food_plans_cost_of_food/PricesDatabaseReport.pdf; Last accessed: June 25, 2016.
- 44.United States Department of Agriculture. Food Expenditures - Table 15. In: Service ER, ed. http://www.ers.usda.gov/data-products/food-expenditures.aspx; 2014. Last accessed: June 1, 2016.
- 46.Todd JE, Leibtag E, Penberthy C. Geographic Differences in the Relative Price of Healthy Foods. U.S. Department of Agriculture, Economic Research Service. June 2011;EIB-78.Google Scholar
- 48.Stewart H, Hyman J, Buzby JC, Frazao E, Carlson A. How much do fruits and vegetables cost? United States Department of Agriculture, Economic Research Service. February 2011;EIB-71.Google Scholar
- 49.Morris A. Impact of Orange Juice Market Dynamics on Fruit Prices. Presented at the International Citrus Economics Conference. October 27, 2011. Orlando, Florida. 2011.Google Scholar
- 50.Beverage World. Market share of the leading soft drink companies in the United States in 2014. Available at: http://www.statista.com/statistics/237687/market-share-of-the-leading-us-soft-drink-companies/. Last accessed: May 18, 2016.
- 51.Grocery Headquarters. Leading vendors of potato chips in the United States in 2016, based on sales (in million U.S. dollars). Available at: http://www.statista.com/statistics/188220/leading-potato-chips-vendors-in-the-united-states-in-2011/. Last accessed: May 18, 2016.
- 52.Grocery Headquarters. Sales of the leading chocolate candy brands of the United States in 2016 (in million U.S. dollars)*. Available at: http://www.statista.com/statistics/190393/top-chocolate-candy-brands-in-the-united-states/ Last accessed: May 18, 2016.
- 53.Beverage Industry Magazine. Sales of the leading refrigerated orange juice brands of the United States in 2015 (in million U.S. dollars). Available at: http://www.statista.com/statistics/188749/top-refrigerated-orange-juice-brands-in-the-united-states/. Last accessed: May 18, 2016.
- 54.Grocery Headquarters. Supermarket categories with the highest private label share in the United States in 2012, based on unit market share. Available at: http://www.statista.com/statistics/259966/private-label-share-in-us-supermarket-categories/ Last accessed: May 18, 2016.
- 55.Store Brands. Dollar sales share of the private label frozen and canned fruit and vegetables category in U.S. retail stores in 2015, by segment. Available at: http://www.statista.com/statistics/419674/us-dollar-sales-share-of-private-label-frozen-and-canned-fruit-and-vegetables-by-segment/ Last accessed: May 18, 2016.