The Impact of Eating Habits on the Health of Employees in the Defense Sector

NCT07176195 | Active Not Recruiting

• 1 other identifier: PRENAV
• Study Type: observational
• Target: 125
• Locations: 1 country
• Sites: 2

Brief Summary

The PRENAV project focuses on healthy and sustainable eating among employees in the defense sector of the Republic of Slovenia. The project pursues two main objectives:

1. 1.In a selected sample of employees in the defense sector, the project will determine their nutritional status and assess indicators of metabolic health, including serum concentration of vitamin D.
2. 2.In the selected sample, through a survey and qualitative methods (interviews, focus groups), we will identify the eating habits of employees in the defense sector, the factors influencing their dietary decisions, and the barriers and facilitators of healthy and sustainable eating among employees in the defense sector.

Conditions

Health-Related Behavior

Outcome Measures

Primary Outcomes (1)

• Food intake

  Participants of the cross-sectional study will complete a Food Frequency Questionnaire (FFQ), adapted for the Slovenian population (Bizjak, Jenko Pražnikar \& Koroušić Seljak, 2014), with the aid of visual materials (portion size images). In the FFQ method, respondents answer questions about the frequency of consumption of specific foods over a certain period of time. From a methodological perspective, most studies examining dietary habits and food/nutrient intake in military populations use the Food Frequency Questionnaire (FFQ), which is typically adapted to the general population of individual countries (Collins et al., 2021), rather than specifically tailored to the military population. The questionnaire is based on self-reporting by study participants. It is an internationally established methodology for subjective assessment of nutrient intake, and the risk for participants is negligible.

  From enrollment to the end of the November 2025

Secondary Outcomes (2)

• Body muscle mass (kg)

  From enrollment to the end of November 2025

• vitamin D (ng/ml)

  From enrollment to the end of the November 2025

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

All participants will be adults, with an expected age range of 18-65 years, including both males and females, employed in the defense sector. Participants will include both military personnel and civilians.

You may qualify if:

• Adults employed at the Ministry of Defence or in the military.
• Asymptomatic individuals (i.e., without current acute illness or relevant health complaints).
• Willingness to provide informed consent to participate in the study.
• Willingness and ability to complete all questions in the Food Frequency Questionnaire (FFQ) and other study questionnaires.

You may not qualify if:

• Pregnant and breastfeeding women, as well as individuals with electronic implants such as a pacemaker, will be excluded.

Sponsors & Collaborators

• University of Primorska: lead
• University of Ljubljana, Faculty of Social Sciences: collaborator
• Ministry of Defence, Slovenia: collaborator

Study Sites (2)

University of Ljubljana Faculty of Social Sciences

Ljubljana, Ljubljana, 1000, Slovenia

Location

University of Primorska Faculty of Health Sciences

Izola, Municipality of Izola, 6310, Slovenia

Location

Biospecimen

Retention: SAMPLES WITHOUT DNA

Whole blood for biochemical analysis

MeSH Terms

Conditions

Health Behavior

Condition Hierarchy (Ancestors)

Behavior

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assoc. Prof. Dr.

Study Record Dates

• First Submitted: September 8, 2025
• First Posted: September 16, 2025
• Study Start: September 22, 2025
• Primary Completion: November 15, 2025
• Study Completion (Estimated): June 15, 2026
• Last Updated: December 5, 2025

Record last verified: 2025-12

Locations

SL (2)