Sleep

Ultra-processed food consumption, hedonic hunger, and sleep quality among university students: a food and nutrition literacy perspective.

TL;DR

Food and nutrition literacy among university students is significantly associated with hedonic hunger, emotional eating, sleep quality, and ultra-processed food consumption, suggesting that nutrition interventions should extend beyond knowledge transfer and incorporate behavioral and psychosocial components.

Key Findings

Females had significantly higher scores than males in the knowledge and attitude sub-dimensions of food and nutrition literacy (FNL).

  • Gender difference in knowledge and attitude sub-dimensions was statistically significant (p < 0.001)
  • No gender-related difference was observed in the behavior sub-dimension of FNL
  • Study conducted with 1,400 university students using face-to-face structured interviews
  • FNL was measured using the Food and Nutrition Literacy Instrument (FNL)

Females exhibited significantly higher hedonic hunger and emotional eating scores compared with males.

  • Females had significantly higher Power of Food Scale (PFS) scores compared with males (p < 0.05)
  • Females also had significantly higher Emotional Eater Questionnaire (EEQ) scores compared with males (p < 0.05)
  • Hedonic hunger was assessed using the Power of Food Scale (PFS)
  • Emotional eating was assessed using the Emotional Eater Questionnaire (EEQ)

Females demonstrated poorer sleep quality than males.

  • Females had higher Pittsburgh Sleep Quality Index (PSQI) scores, indicating poorer sleep quality (p < 0.01)
  • Sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI)
  • This gender difference was statistically significant at p < 0.01

No significant gender differences were found in ultra-processed food (UPF) consumption.

  • UPF consumption was measured using the Screening Questionnaire for Highly Processed Food Consumption (sQ-HPF)
  • Despite other significant gender differences observed across multiple measures, UPF consumption did not differ significantly between males and females

Individuals with lower food and nutrition literacy levels demonstrated higher hedonic hunger, poorer sleep quality, greater UPF consumption, and more pronounced emotional eating behaviors.

  • All associations between lower FNL levels and worse outcomes were statistically significant (p < 0.05)
  • Lower literacy was associated with higher hedonic hunger as measured by PFS
  • Lower literacy was associated with poorer sleep quality as measured by PSQI
  • Lower literacy was associated with greater UPF consumption as measured by sQ-HPF
  • Lower literacy was associated with more pronounced emotional eating as measured by EEQ

In linear regression analyses, the knowledge and attitude sub-dimensions of FNL were negatively associated with age, gender, emotional eating, and UPF consumption.

  • Negative associations were found between FNL knowledge/attitude sub-dimensions and age, gender, emotional eating, and UPF consumption (p < 0.001)
  • The knowledge and attitude sub-dimensions were positively associated with hedonic hunger (p < 0.001)
  • The positive association with hedonic hunger suggests a nuanced relationship between literacy and food reward responsiveness

Sociodemographic characteristics, health status, dietary habits, and anthropometric measurements were collected alongside multiple validated psychosocial instruments.

  • Data were collected through face-to-face interviews using a structured questionnaire administered by the researchers
  • Five validated instruments were used: FNL, sQ-HPF, PFS, EEQ, and PSQI
  • Total sample size was 1,400 university students
  • Data were analyzed using SPSS version 23.0

What This Means

This research suggests that how well university students understand food and nutrition has meaningful connections to their eating behaviors, hunger patterns, and sleep. Studying 1,400 university students, researchers found that those with lower food and nutrition literacy tended to eat more ultra-processed foods (like packaged snacks, fast food, and ready meals), experience stronger urges to eat for pleasure rather than hunger (hedonic hunger), engage more in emotional eating, and sleep more poorly. Women in the study scored higher on food and nutrition knowledge and attitudes than men, but also reported stronger hedonic hunger, more emotional eating, and worse sleep quality — though men and women consumed similar amounts of ultra-processed foods. Interestingly, the study found that while higher literacy in knowledge and attitudes was linked to less emotional eating and lower ultra-processed food consumption, it was also unexpectedly associated with higher hedonic hunger scores. This suggests that simply knowing more about nutrition does not straightforwardly reduce all problematic eating behaviors — the relationship between understanding food and actually eating well is more complex than it might seem. This research suggests that programs aimed at improving eating habits in young adults should not focus solely on providing nutritional information. Because emotional, psychological, and behavioral factors all play a role in what and how people eat, effective interventions likely need to address the emotional and social dimensions of eating as well. University students are at a critical life transition, and this study highlights the importance of comprehensive approaches to nutrition education that go beyond facts to support healthier habits in real-world contexts.

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Citation

Arslan S, Saban G&#xfc;ler M, K&#xf6;se A, Kaygusuz &, Demir &, Delio&#x1e7;lu S. (2026). Ultra-processed food consumption, hedonic hunger, and sleep quality among university students: a food and nutrition literacy perspective.. Frontiers in public health. https://doi.org/10.3389/fpubh.2026.1785585