Effects of Eco-Friendly Nutrition Education on Sustainable Food Literacy and Nutritional Behaviors in Women

January 8, 2026 updated by: Sumeyra YILMAZ, Gazi University

Effects of Social Cognitive Theory-Based Eco-Friendly Nutrition Education on Sustainable Food Literacy and Nutritional Behaviors in Women: A Randomized Controlled Trial

This research will be conducted face-to-face with women registered at the Women's Club. Participants included in the study are expected to fill out three survey forms first. The first form includes the Descriptive Information Form, which includes questions such as age, height, weight, marital status, education, employment status, and income status; the second form includes the Food Literacy Tool; and the third form includes the Behavior Scale for Sustainable Nutrition. It takes approximately 20 minutes to fill out the forms. After the survey forms are filled out, participants will be randomly divided into two groups and the order of the groups will be determined by drawing lots. Participants in the first group will attend the Environmentally Friendly Nutrition Training once a week for five weeks immediately after the survey forms are filled out. Participants in the second group will be included in the training after the first group's training is completed. The survey form will be filled out again immediately after the training and one month later. The study will be completed with the completion of the last surveys.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This research will be conducted face-to-face with women registered at the Women's Club. Participants included in the study are expected to fill out three survey forms first. The first form includes the Descriptive Information Form, which includes questions such as age, height, weight, marital status, education, employment status, and income status; the second form includes the Food Literacy Tool; and the third form includes the Behavior Scale for Sustainable Nutrition. It takes approximately 20 minutes to fill out the forms. After the survey forms are filled out, participants will be randomly divided into two groups and the order of the groups will be determined by drawing lots. Participants in the first group will attend the Environmentally Friendly Nutrition Training once a week for five weeks immediately after the survey forms are filled out. The training is based on Social Cognitive Theory. Each week is designed with various practices and activities in addition to theoretical training. Participants assigned to the second group will be included in the training after the first group's training is completed. The survey form will be filled out again immediately after the training and one month later. The study will be completed with the completion of the last surveys.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
122

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey (Türkiye)
      • Ankara, Turkey (Türkiye)
        • Ankara Metropolitan Municipality, Ladies' Club

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Being registered with the municipality's Women's Club, Participating in the study voluntarily, not having a language barrier in communication and not having received training on environmentally friendly nutrition before.

Exclusion Criteria:

  • not meeting inclusion criteria

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Eco-Friendly Nutrition Educational Intervention Group
The intervention program was created in five sessions based on a comprehensive literature review and Social Cognitive Theory to improve women's sustainable food literacy and sustainable nutritional behaviors. After each topic is presented by the researcher, various interactive practices such as reviewing reliable websites on the topic, reviewing food packages, reviewing brochures prepared by the researcher will be included to improve food literacy and sustainable nutritional behaviors and gain critical evaluation skills. The intervention sessions will be held in a room approved by the institution administration in the Women's Club. The intervention sessions will be held in five sessions, each approximately 45 minutes long, at one-week intervals. In order to organize the intervention sessions, the participating women will be contacted by phone and a suitable date and time will be determined. The planned time will be reminded by text message on the day of the intervention session. In or
Behavioral: Eco-Friendly Nutrition Educational Intervention Program
The intervention sessions will be held in a room approved by the institution administration in the Women's Club. The intervention sessions will be held in five sessions, each approximately 45 minutes long, at one-week intervals. In order to organize the intervention sessions, the participating women will be contacted by phone and a suitable date and time will be determined. The planned time will be reminded by text message on the day of the intervention session. In order to prevent loss and ensure that the intervention sessions continue as group training, participants who cannot attend the planned session will be included in another group addressing the same topic.
Other: Waiting List Control Group
No intervention will be made to the women in the waiting list group during the intervention group training process and the research process. After the completion of the training process of the women in the intervention group and the post-test data and the follow-up test one month later, the interventions will be applied to
Behavioral: Eco-Friendly Nutrition Educational Intervention Program
The intervention sessions will be held in a room approved by the institution administration in the Women's Club. The intervention sessions will be held in five sessions, each approximately 45 minutes long, at one-week intervals. In order to organize the intervention sessions, the participating women will be contacted by phone and a suitable date and time will be determined. The planned time will be reminded by text message on the day of the intervention session. In order to prevent loss and ensure that the intervention sessions continue as group training, participants who cannot attend the planned session will be included in another group addressing the same topic.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Sustainable Food Literacy Tool Score
Time Frame: before intervention (week 1)after intervention (week 5)follow-up time (at the end of the 3rd month)
The Turkish validity and reliability of the scale developed by Rosas et al. (2022) was made by Ertaş Öztürk et al. (2024). The scale contains 24 items, five factors (F1: Culinary competencies, F2: Production and quality, F3: Selection and planning, F4: Environmentally safe, F5: Origin) and a Likert-type scoring system (0-never/completely disagree, 1-sometimes/disagree, 2-often/agree, 3-always/completely agree). Each item is scored between 0 and 3 points. The total score and the scores of the sub-factors are obtained by summing up the relevant items. The score obtained shows the level of sustainable food literacy. The Cronbach alpha internal consistency coefficient of the entire scale is 0.831.
before intervention (week 1)after intervention (week 5)follow-up time (at the end of the 3rd month)
General Self-Efficacy Scale Score
Time Frame: before intervention (week 1)after intervention (week 5)follow-up time (at the end of the 3rd month)
General Self-Efficacy Scale The Turkish validity and reliability of the scale developed by Sherer et al. (1982) was carried out by Yıldırım and İlhan (2010). The scale consists of 17 items and three sub-dimensions (Initiation, Not Giving Up, Sustainment Effort-Persistence). It has a Likert-type five-point rating from not at all to very good, and items 2, 4, 5, 6, 7, 10, 11, 12, 14, 16 and 17 are reverse scored. The total score of the scale can vary between 17-85. An increase in the total score indicates an increase in self-efficacy belief. The Cronbach alpha internal consistency coefficient of the entire scale was found to be 0.80.
before intervention (week 1)after intervention (week 5)follow-up time (at the end of the 3rd month)
Sustainable Nutrition Behavior Scale Score
Time Frame: before intervention (week 1)after intervention (week 5)follow-up time (at the end of the 3rd month)
Sustainable Nutrition Behavior Scale Developed by Garipoglu et al. (2023). It consists of 29 items and 4 sub-dimensions (food preference, reduction of food waste, seasonal and local nutrition, purchasing food) with a five-point Likert-type scale. The scale is rated as "never", "rarely", "sometimes", "often" and "always". All items are scored from 1 to 5, starting from the "never" option. The lowest score that can be obtained from the scale is 29 and the highest score is 145. Sub-dimension scores are obtained by dividing the sum of the scores given by individuals to the questions in the sub-dimension by the number of questions in the sub-dimension. Higher total scores and sub-dimension scores indicate that the individual has more sustainable nutrition behaviors. The Cronbach alpha internal consistency coefficient of the entire scale was found to be 0.92.
before intervention (week 1)after intervention (week 5)follow-up time (at the end of the 3rd month)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Gazi University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 5, 2025

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 4, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 4, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 8, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 8, 2026

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 16, 2026

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 16, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 8, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2025

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • E-77082166-604.01-1217558

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

In order to protect the personal information of the participants, their data is not shared. However, the authors can be contacted for explainable reasons.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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