# Cross-Sectional Analysis of Fruit and Vegetable Consumption, Breakfast Frequency, and Life Satisfaction Among Health Sciences Students: The Mediating Role of Positive Affect

**Authors:** Jacksaint Saintila, Norma Del Carmen Gálvez-Díaz, Luz A. Barreto-Espinoza, Christian Casas-Gálvez, Ana Valle-Chafloque, Ramos Alfonso Paredes-Aguirre, Yaquelin E. Calizaya-Milla

PMC · DOI: 10.3390/nu18010122 · Nutrients · 2025-12-30

## TL;DR

This study finds that eating more fruits and vegetables and eating breakfast more often can improve life satisfaction among health science students by boosting positive emotions.

## Contribution

The study identifies positive affect as a mediator linking healthy eating habits to life satisfaction in university students.

## Key findings

- Fruit and vegetable consumption and breakfast frequency are positively linked to positive affect and life satisfaction.
- Positive affect mediates the relationship between these eating habits and life satisfaction.
- The model explains over half of the variance in life satisfaction among students.

## Abstract

Background: Eating habits such as fruit and vegetable (FV) consumption and breakfast frequency are well recognized for their contribution to overall health and well-being. However, the psychological mechanisms that explain the link between these habits and life satisfaction remain poorly explored among university students in the health sciences. Objective: To examine whether positive affect mediates the relationship between FV consumption, breakfast frequency, and life satisfaction among health sciences students. Methods: A cross-sectional study was conducted with 511 students. FV consumption, breakfast frequency, positive affect, and life satisfaction were assessed using self-report measures. Mediation models were applied to estimate direct and indirect associations. Results: FV consumption and breakfast frequency were positively associated with both positive affect and life satisfaction. Although the direct associations with life satisfaction were not significant, the indirect associations through positive affect were significant (FV: β = 0.114, 95% CI [0.055, 0.173]; breakfast: β = 0.133, 95% CI [0.073, 0.192]). The model accounted for 51.4% of the variance in life satisfaction. Conclusions: The results highlight the role of positive affect as a psychological mechanism linking everyday eating habits to life satisfaction, emphasizing the need to integrate emotional components into strategies for promoting healthy lifestyles among university populations.

## Full-text entities

- **Genes:** F5 (coagulation factor V) [NCBI Gene 2153] {aka FVL, PCCF, RPRGL1, THPH2, fV}
- **Diseases:** depression (MESH:D003866), anxiety (MESH:D001007), neuroinflammation (MESH:D000090862), injury to (MESH:D014947), inflammatory (MESH:D007249)
- **Chemicals:** dopaminergic (MESH:D004298), polyphenols (MESH:D059808), cortisol (MESH:D006854), FV (-)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

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## References

57 references — full list in the complete paper: https://tomesphere.com/paper/PMC12787723/full.md

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Source: https://tomesphere.com/paper/PMC12787723