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Article History

Received: 10 November 2025

Accepted: 22 April 2026

First Online: 8 June 2026

Declarations

Ethics approval: The study was conducted in compliance with the Declaration of Helsinki (revised in 2000). According to Hungarian regulations and GDPR, no separate ethics committee approval was required for this type of voluntary research. The data processing was carried out by ESSRG Nonprofit Kft. in line with the Hungarian data protection law (Act CXII of 2011 on Informational Self-Determination and Freedom of Information) and the organisation’s internal data protection policies. The Ethical Committee of the HUN-REN Centre for Economic and Regional Studies in Hungary granted ethical approval for the study (Ref. No. 1Főig/20 - 1/2025).

Consent to participate: All participants gave informed consent before taking part in the study. Specifically, before beginning the survey and other research activities, participants received two documents: 1. Information about the project and data management explaining the aims of the PLAN’EAT project, the voluntary nature of participation, the activities involved, potential risks and benefits, data confidentiality, and the right to withdraw at any time without consequences; 2. Informed consent form, where participants confirmed their agreement to participate.

Consent for publication: All participants provided informed consent to participate in the study and to allow the publication of the results.

Competing interests: The authors declare that they have no competing interests.