Dual-Label Intervention to Promote Low-Carbon and Healthy Food Choices in a University Cafeteria

This study aims to evaluate whether a dual-label intervention, combining carbon -coded footprint color labels and calorie information, can promote low-carbon and healthier food choices among university students in a real-world cafeteria setting. A randomized controlled trial will be conducted with approximately 200 participants, who will be assigned to either an intervention group (with labels) or a control group (without labels). The study a consists of 2-week baseline period, a 4-week intervention period, and a 2-week a follow-up period. The primary outcome is the mean carbon footprint level of selected meals, and secondary outcomes include nutritional quality, body composition, and changes in environmental and health awareness.

NCT Number	NCT07531524
Lead Sponsor	Lina Zhang
Conditions	Eating Behavior, Dietary Behavior
Enrollment	200 participants
Start Date	2026-05
Primary Completion	2026-07 (estimated)
Study Completion	2026-07 (estimated)
Updated on ClinicalTrials.gov	2026-04-21