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Global Obesity Prevention Center

STaple food ORdinance Evaluation (STORE) Study: 

Assessing the Impact of a Local Staple Food Ordinance on Healthy Food Availability


Project Lead: Melissa Laska, PhD, RD




STORE StudyImproving access to healthy food has been identified by the Institute of Medicine, CDC and other authorities as a strategy for local governments to help prevent obesity. To date, the City of Minneapolis is the only city in the U.S. that has passed an ordinance requiring all stores with grocery licenses to carry a series of healthy foods and beverages, aligning with the Dietary Guidelines for Americans and stocking requirements for WIC program vendors.

This type of policy action may have an important impact on food access, particularly in underserved neighborhoods
and small food stores that do not currently stock these types of items.


STORE study logoOur STaple food ORdinance Evaluation (STORE) study is evaluating the impact of this Minneapolis Staple Food Ordinance, which was implemented in April 2015, in small food stores. The specific goals of this study are to: 

The study assessed a randomly selected sample of 119 stores in our early-stage, pre-baseline assessments, focusing on retailers we expected to be most challenged by this ordinance (i.e., non-supermarkets; non-WIC participating retailers). Stores in our sample include: corner stores, convenience stores and other small markets, gas-marts, pharmacies and dollar stores. 

STORE STUDY 2After being given permission by the store owner/manager, an in-person audit was administered in each selected store to assess food availability, price, quality and variety of foods and beverages. The study also selected stores in Minneapolis and St. Paul (i.e., the control community) from which to recruit participants for customer intercept surveys and bag checks.

To complete these customer intercept surveys, data collectors stood near the store exit during the busiest hours of operation and invited all customers exiting the store who appeared to be ≥18 years of age to participate. For those customers agreeing to participate, the STORE study data collectors examined all foods
and beverages purchased by participants to record item names, types and weights/sizes. 



Phase One: Pre-Policy Implementation Data Collection.

Phase Two: Post-Policy Implementation Data Collection.



Additional Information:
To learn more, please email the Global Obesity Prevention Center at Johns Hopkins here.