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

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorLina Zhang

About this trial

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.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Students enrolled at the university

Regularly purchase food in the university cafeteria

Aged ≥18 years

Disqualifiers

Individuals aged <18 years

Individuals who do not regularly purchase food in the university cafeteria

Individuals unable to participate throughout the study period

Trial design

Design model

Parallel

Treatments tested in this trial

  • Carbon and Calorie label

    Behavioral

    Participants are exposed to carbon footprint and calorie information presented on labels attached to serving trays in a university cafeteria. The labels use visual cues (e.g., traffic-light colors) to indicate environmental impact and energy content of food items at the point of selection.

Treatment groups

200 Participants
are divided into 2 treatment groups
Group A: Food purchased with carbon and calorie labels.Experimental treatment 1 intervention
Group B: ControlNo intervention 0 interventions

Trial outcomes

Primary outcomes

1

Carbon footprint of selected food items

Average carbon footprint of food items selected per participant in a university cafeteria setting, calculated based on carbon emission values and compared between intervention and control groups.

Time frame
4 weeks for intervention period

Secondary outcomes

1

Calorie content of selected food items

Average calorie content (kcal) of food items selected per participant in a university cafeteria setting, compared between intervention and control groups.

Time frame
4 weeks for intervention period
2

Nutritional quality score of selected food items

utritional quality score of food items selected per participant in a university cafeteria setting, assessed using a predefined scoring system and compared between groups.

Time frame
4 weeks for intervention period
3

Body mass index

Change in body mass index (kg/m²) from baseline to 4 weeks among participants.

Time frame
Baseline and 4 weeks.
4

Body weight

Change in body weight (kg) from baseline to 4 weeks among participants.

Time frame
Baseline and 4 weeks

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Lina Zhang

Lead sponsor

Zhejiang Chinese Medical University

Sponsor institution

This trial is not recruiting at the moment. You can still explore other options: