Nudge with caution: targeting fruit and vegetable consumption in primary schools

Area of Science:

• Nutrition Science
• Behavioral Science
• Public Health

Background:

• Most children in the UK have suboptimal fruit and vegetable intake.
• Evidence-based interventions are crucial to improve children's dietary habits.

Purpose of the Study:

• To evaluate the effectiveness of simple behavioral nudges on children's lunchtime fruit and vegetable consumption.
• To assess changes in food selection and consumption patterns in primary school children.

Main Methods:

• A pilot study conducted in two primary schools involving 107 children.
• Intervention included changes to dining room choice architecture: improved food presentation, attractive labeling, and staff prompting.
• Children's lunchtime consumption was measured using a validated digital photography protocol at baseline and after a 3-week intervention.

Main Results:

• Children who consumed school lunches (n=67) showed increased selection and consumption of fruit.
• No significant changes in vegetable selection or consumption were observed.
• Children who brought packed lunches (n=40) showed no changes in fruit or vegetable intake.

Conclusions:

• Behavioral nudges can positively influence fruit selection and consumption in school settings.
• Relying solely on selection data may misrepresent actual consumption changes.
• Comprehensive evaluation of interventions is necessary to understand effects on overall eating behaviors and avoid unintended consequences.