Making grocery store checkouts healthier

Impact of a Healthy Checkout Policy on Healthfulness of Grocery Environments and Sales

NIH-funded research University of California at Davis · NIH-11290407

This project checks whether removing high-sugar and high-salt items from store checkouts helps shoppers, especially adults at risk for type 2 diabetes, choose healthier foods.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of California at Davis NIH-funded
Lab location1 site (Davis, United States)
Project IDNIH-11290407 on NIH RePORTER

What this research studies

Researchers will compare grocery stores in Berkeley, which implemented a healthy checkout policy, with stores in three similar comparison cities over several years. They will document what is displayed at checkouts and analyze store sales and purchase patterns to see whether unhealthy items decline and healthier items increase. The team will use statistical methods that create a synthetic control group and difference-in-differences comparisons to separate policy effects from other trends. Results will show whether changing checkout options can shift purchases in ways that might lower obesity and type 2 diabetes risk.

Who could benefit from this research

Good fit: People who live in or regularly shop at grocery stores in Berkeley or the three comparison cities, particularly adults at risk for type 2 diabetes, are the most relevant population for these findings.

Not a fit: People who do not shop at participating stores or whose food choices are not influenced by checkout displays are unlikely to see direct benefit from this policy.

Why it matters

Potential benefit: If successful, the policy could reduce impulse purchases of sugary drinks and snacks and help lower community rates of obesity and type 2 diabetes.

How similar studies have performed: Voluntary healthy checkout standards in other countries have reduced purchases of unhealthy items and increased healthier purchases, but this is the first U.S. mandatory checkout policy being followed over time.

Where this research is happening

Davis, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Conditions Adult-Onset Diabetes Mellitus
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.