Food Swaps to Improve the Healthfulness and Reduce the Carbon Footprint of Grocery Purchases

Completed · Not applicable

Conditions studied: Food Selection, Nutrition, Food Preferences, Dietary Habits, Sustainability, Healthy Diet

In brief

The study aims to determine whether viewing health or climate labels (or both) and receiving recommendations for healthier or more climate-friendly swaps (or both) in an online grocery store environment improves the healthfulness and reduces the carbon footprint of consumers' food and beverage purchases compared to shopping as usual without swap recommendations. The online store will record participants' food selections. Participants will also be asked to complete survey measures.

Key facts

Study ID

NCT06648226

Run by

Stanford University

People needed

1201

Starts

2025-05-07

Expected to finish

2025-06-25

Last updated by the study team

2026-06-24

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Aged 18 years or older
• Reside in the United States
• Able to complete a survey in English
• Have internet access to complete the 3 online study visits

You may not qualify if…

• Under the age of 18
• Reside outside of the United States
• Unable to complete a survey in English
• Do not have internet access to complete the 3 online study visits

Where it is running

• Stanford School of Medicine — Palo Alto, California, United States

Full record on ClinicalTrials.gov

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