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Personal Values for Sustainable Eating: A Preliminary Investigation of a Value-Based Planned Behavior Model
Edoardo Del Conte1, Lucia Tecuta1, Elena Tomba1
1Department of Psychology, University of Bologna, Viale Carlo Berti Pichat 5, 40127 Bologna, Italy.
Nutrients
|July 12, 2025
Summary
Personal values significantly influence sustainable eating habits. Promoting health, security, and openness encourages eco-friendly food choices, while autonomy and self-direction may hinder them.
Area of Science:
- Psychology
- Behavioral Science
- Nutrition Science
Background:
- Sustainable eating behaviors are vital for environmental and individual health.
- Understanding psychological determinants of dietary choices is crucial.
- The Theory of Planned Behavior (TPB) is a key framework, but may benefit from incorporating personal values.
Purpose of the Study:
- To develop and validate a Food-Related Personal Values Questionnaire (FRPV-Q).
- To examine the role of personal values within an enhanced TPB framework for sustainable eating.
- To identify specific values that promote or hinder sustainable food choices.
Main Methods:
- Development of the FRPV-Q based on Schwartz's circumplex model.
- Testing the FRPV-Q structure using statistical analyses.
- Utilizing regression analyses to assess the predictive power of personal values in an enhanced TPB model.
Main Results:
- The FRPV-Q identified three components: Openness, Health and Security, and Autonomy.
- Personal values significantly predicted sustainable eating behaviors (adjusted R² = 0.318).
- Autonomy, hedonism, and self-directionality were associated with less sustainable choices, while health, security, and openness to novelty were associated with more sustainable choices.
Conclusions:
- Personal values play a preliminary but significant role in food-related behaviors.
- Further research is needed to fully understand and promote pro-environmental food choices.
- Value-based psychological interventions could effectively promote sustainable dietary lifestyles.
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