Understanding the role of nutrition literacy in sustainable nutrition


Ünal G., Bay S. S., Semsek S.

INTERNATIONAL JOURNAL OF SUSTAINABILITY IN HIGHER EDUCATION, 2025 (SSCI) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2025
  • Doi Number: 10.1108/ijshe-09-2024-0673
  • Journal Name: INTERNATIONAL JOURNAL OF SUSTAINABILITY IN HIGHER EDUCATION
  • Journal Indexes: Social Sciences Citation Index (SSCI), Scopus, Academic Search Premier, EBSCO Education Source, Educational research abstracts (ERA), ERIC (Education Resources Information Center), Pollution Abstracts, Public Affairs Index
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

Purpose While few studies have examined the impact of nutrition literacy (NL) on sustainable dietary behaviors, this study aims to explore the role of adults' NL in sustainable and healthy eating behaviors (SHEB) and their adherence to the Mediterranean diet. Design/methodology/approach This cross-sectional study was conducted between April 2023 and January 2024 at Ondokuz May & imath;s University in Samsun, T & uuml;rkiye, involving 277 students and personnel (54.9% women; age range: 19-56 years). Participants completed the Evaluation Instrument of Nutrition Literacy on Adults (EINLA), the Sustainable and Healthy Eating Behaviors Scale (SHEBS) and the Mediterranean Diet Adherence Screener (MEDAS). Findings Linear regression analyses revealed that a one-unit increase in the reading comprehension and interpretation component of the EINLA scale was associated with a 4.458-unit increase (p = 0.022) in the SHEBS score. Additionally, age was positively associated with SHEBS, with each additional year linked to a 0.977-unit increase (p < 0.001). Participants whose income was equal to or higher than their expenditure had significantly higher SHEBS scores compared to those whose income was lower (p = 0.002). However, no significant association was observed between NL and MEDAS scores. Originality/value This study contributes to the literature by demonstrating that reading comprehension and interpretation play a critical role in promoting SHEB among university students and personnel. Additionally, it highlights the influence of age and financial stability on individuals' ability to adopt sustainable and healthy eating behaviors.