Sustainable Eco-Friendly NutritionNCT07326787
Social Cognitive Theory-Based Educational Intervention Program on Sustainable Eco-Friendly Nutrition
A study testing Social Cognitive Theory-Based Educational Intervention Program in people with Sustainable Eco-Friendly Nutrition and Self Efficacy, run by Gazi University at 1 site in Turkey (Türkiye).
Trial summary
This study is designed as a parallel-group randomized controlled trial to evaluate the effectiveness of a sustainable environmentally friendly nutrition educational intervention program developed based on the principles of Social Cognitive Theory. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Sustainable Eco-Friendly Nutrition, Self Efficacy, Adolescent Nutrition
- What is being tested?
- Social Cognitive Theory-Based Educational Intervention Program
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 22 Sep 2025to 1 Dec 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Being a 6th or 7th grade student
- Volunteering to participate in the study
- Family approval for participation in the study
Who cannot join
- Following a specific nutrition program
- Having communication difficulties (hearing, seeing, or understanding)
- Having plans to travel/move out of town during the work period
- Having special needs
Trial locations and contacts
1 site in 1 country.
About this study
Official title: The Effect of a Social Cognitive Theory-Based Educational Intervention Program on Sustainable Eco-Friendly Nutrition, Nutritional Attitudes, and Self-Efficacy in Adolescents: A Randomized Controlled Trial
This study is designed as a parallel-group randomized controlled trial to evaluate the effectiveness of a sustainable environmentally friendly nutrition educational intervention program developed based on the principles of Social Cognitive Theory. The intervention aims to improve sustainable environmentally friendly nutrition behaviors, nutritional attitudes, and nutrition self-efficacy among adolescents.
Eligible participants will be randomly assigned to either an intervention group or a control group using a computerized simple randomization procedure conducted by an independent researcher. Allocation concealment will be ensured through participant coding, and data analysis will be performed by an independent biostatistician blinded to group assignments.
Read more
The intervention group will participate in a structured six-week educational program, consisting of one session per week. Each session will last approximately 40 minutes and will focus on a specific module addressing the relationship between climate change, environmental sustainability, and nutrition. Program content is grounded in Social Cognitive Theory, emphasizing observational learning, self-regulation, outcome expectations, and self-efficacy enhancement. Educational methods will include interactive presentations, group discussions, games, and activity-based learning supported by visual and audio materials to promote engagement and long-term behavioral change.
To reinforce learning and facilitate behavior maintenance, supplementary reinforcement messages will be delivered throughout the intervention period. Communication with participants and their parents will be maintained via digital messaging platforms to support adherence and engagement.
The control group will continue their routine school curriculum without receiving any nutrition-related educational intervention during the study period.
Outcome data will be collected at four time points: baseline (pre-intervention), immediately after completion of the six-week program (post-intervention), and at one-month and three-month follow-up assessments. Data collection is expected to take approximately 25 minutes at each assessment point. The follow-up assessments are intended to evaluate the sustainability of behavior change over time.
The intervention will be implemented during the fall semester of the 2025-2026 academic year following the completion of ethical approval and institutional permissions.
Read the detailed description
This study is designed as a parallel-group randomized controlled trial to evaluate the effectiveness of a sustainable environmentally friendly nutrition educational intervention program developed based on the principles of Social Cognitive Theory. The intervention aims to improve sustainable environmentally friendly nutrition behaviors, nutritional attitudes, and nutrition self-efficacy among adolescents.
Eligible participants will be randomly assigned to either an intervention group or a control group using a computerized simple randomization procedure conducted by an independent researcher. Allocation concealment will be ensured through participant coding, and data analysis will be performed by an independent biostatistician blinded to group assignments.
The intervention group will participate in a structured six-week educational program, consisting of one session per week. Each session will last approximately 40 minutes and will focus on a specific module addressing the relationship between climate change, environmental sustainability, and nutrition. Program content is grounded in Social Cognitive Theory, emphasizing observational learning, self-regulation, outcome expectations, and self-efficacy enhancement. Educational methods will include interactive presentations, group discussions, games, and activity-based learning supported by visual and audio materials to promote engagement and long-term behavioral change.
To reinforce learning and facilitate behavior maintenance, supplementary reinforcement messages will be delivered throughout the intervention period. Communication with participants and their parents will be maintained via digital messaging platforms to support adherence and engagement.
The control group will continue their routine school curriculum without receiving any nutrition-related educational intervention during the study period.
Outcome data will be collected at four time points: baseline (pre-intervention), immediately after completion of the six-week program (post-intervention), and at one-month and three-month follow-up assessments. Data collection is expected to take approximately 25 minutes at each assessment point. The follow-up assessments are intended to evaluate the sustainability of behavior change over time.
The intervention will be implemented during the fall semester of the 2025-2026 academic year following the completion of ethical approval and institutional permissions.
- Being tested
- Social Cognitive Theory-Based Educational Intervention Program
- Keywords
- adolescent, Sustainable Eco-Friendly Nutrition, nursing, climate change
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Social Cognitive Theory-Based Educational Intervention ProgramOther
In this study, a sustainable eco-friendly nutrition educational intervention program was developed based on social cognitive theory. The sustainable eco-friendly nutrition educational intervention program will last six weeks. Each session will consist of one session per week, covering one module. Each session is expected to last approximately 40 minutes. Each module will utilize presentations based on the content, followed by various activities and games to reinforce the topic and support lasting behavioral changes in students.
To reinforce the knowledge and practices adolescents have learned and implemented during the program, and to strengthen the impact of the intervention, the researcher will prepare 12 SMS (Short Message Service) messages using various sources and send them individually to adolescents/parents.
| Study group | Role | What they receive |
|---|---|---|
| Intervention Group | Experimental | Following pretests, participants will be randomly assigned to intervention and participation groups. The intervention group will receive a total of six weeks (six sessions) of the intervention program. Each session is planned to last approximately one class hour (40 minutes). Each session will begin with presentations based on literature, followed by various activities and games to reinforce the topic and support lasting behavioral changes in students. The games were designed according to the gamification model. Receives: Other: Social Cognitive Theory-Based Educational Intervention Program |
| Control Group | No intervention | The control group will not receive any intervention and will continue their education in accordance with the current curriculum. Data collection tools will be administered again one and three months after the pretest, posttest, and interventions are completed in parallel with the intervention group. The intervention may be administered after the program is completed, at the request of the school administration. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Child Nutrition Self-Efficacy Scale
It was measured with the "Child Nutrition Self-Efficacy Scale", which is used to evaluate children's self-efficacy regarding nutrition. The scale consists of 15 items rated on a 3-point Likert scale. Total scores range from -15 to +15, with higher scores indicating greater nutrition self-efficacy and healthier food choices.
Measured: Pre-intervention (week 1), post-intervention (week 6), follow-up time (at the end of month 1 and 3)
"Sustainable Eco-Friendly Nutrition Scale
The "Sustainable Eco-Friendly Nutrition Scale," developed by the researcher, was used to assess participants' sustainable eco-friendly nutritional behaviors. Higher scores on the scale indicate increased sustainable eco-friendly nutritional behavior The scale consists of 19 items rated on a 5-point Likert scale. Total scores range from 19 to 95, with higher scores indicating higher levels of sustainable environmentally friendly nutrition behavior.
Measured: Pre-intervention (week 1), post-intervention (week 6), follow-up time (at the end of month 1 and 3)
Nutrition Attitude Subscale
It was measured with the "Nutrition Attitude Subscale" used to determine the participants' attitudes towards healthy nutrition. The nutrition subscale consists of 4 items rated on a 4-point Likert scale. Total scores range from 4 to 16, with higher scores indicating more positive nutrition attitudes.
Measured: Pre-intervention (week 1), post-intervention (week 6), follow-up time (at the end of month 1 and 3)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Jan 2026
- Study start22 Sep 2025
- Primary completion31 Oct 2025
- Study completion1 Dec 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Sustainable Eco-Friendly NutritionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- The research will be conducted with a parallel group randomized controlled experimental design to examine the effects of a sustainable environmentally friendly nutrition educational intervention program based on social cognitive theory on sustainable environmentally friendly nutrition, nutritional attitudes, and nutritional self-efficacy in adolescents.
- Masking
- Single blind
- Who is masked
- Investigator
- Enrolment
- 60 participants (actual)
Sponsor and investigators
- Lead sponsor
- Gazi University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Sumeyra YILMAZ, Gazi University
- Investigators
- Sümeyra Yılmaz, Principal investigator, Gazi University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07326787
- Sponsor's protocol ID
- E-77082166-302.08.01-1287221
- Status last verified
- Feb 2026
- First submitted
- 26 Dec 2025
- Last updated
- 10 Feb 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 10 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of a Social Cognitive Theory-Based Educational Intervention Program on Sustainable Eco-Friendly Nutrition, Nutritional Attitudes, and Self-Efficacy in Adolescents: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT07326787
- Acronym / sponsor ID
- E-77082166-302.08.01-1287221
- Keywords
- adolescent, Sustainable Eco-Friendly Nutrition, nursing, climate change
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 60 participants (actual)
- Lead sponsor
- Gazi UniversityUniversity, hospital or other
- Study start
- 22 Sep 2025 (actual)
- Primary completion
- 31 Oct 2025 (actual)
- Study completion
- 1 Dec 2025 (actual)
- First posted
- 8 Jan 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study is designed as a parallel-group randomized controlled trial to evaluate the effectiveness of a sustainable environmentally friendly nutrition educational intervention program developed based on the principles of Social Cognitive Theory. The intervention aims to improve sustainable environmentally friendly nutrition behaviors, nutritional attitudes, and nutrition self-efficacy among adolescents.
Eligible participants will be randomly assigned to either an intervention group or a control group using a computerized simple randomization procedure conducted by an independent researcher. Allocation concealment will be ensured through participant coding, and data analysis will be performed by an independent biostatistician blinded to group assignments.
The intervention group will participate in a structured six-week educational program, consisting of one session per week. Each session will last approximately 40 minutes and will focus on a specific module addressing the relationship between climate change, environmental sustainability, and nutrition. Program content is grounded in Social Cognitive Theory, emphasizing observational learning, self-regulation, outcome expectations, and self-efficacy enhancement. Educational methods will include interactive presentations, group discussions, games, and activity-based learning supported by visual and audio materials to promote engagement and long-term behavioral change.
To reinforce learning and facilitate behavior maintenance, supplementary reinforcement messages will be delivered throughout the intervention period. Communication with participants and their parents will be maintained via digital messaging platforms to support adherence and engagement.
The control group will continue their routine school curriculum without receiving any nutrition-related educational intervention during the study period.
Outcome data will be collected at four time points: baseline (pre-intervention), immediately after completion of the six-week program (post-intervention), and at one-month and three-month follow-up assessments. Data collection is expected to take approximately 25 minutes at each assessment point. The follow-up assessments are intended to evaluate the sustainability of behavior change over time.
The intervention will be implemented during the fall semester of the 2025-2026 academic year following the completion of ethical approval and institutional permissions.
Detailed description
This study is designed as a parallel-group randomized controlled trial to evaluate the effectiveness of a sustainable environmentally friendly nutrition educational intervention program developed based on the principles of Social Cognitive Theory. The intervention aims to improve sustainable environmentally friendly nutrition behaviors, nutritional attitudes, and nutrition self-efficacy among adolescents.
Eligible participants will be randomly assigned to either an intervention group or a control group using a computerized simple randomization procedure conducted by an independent researcher. Allocation concealment will be ensured through participant coding, and data analysis will be performed by an independent biostatistician blinded to group assignments.
The intervention group will participate in a structured six-week educational program, consisting of one session per week. Each session will last approximately 40 minutes and will focus on a specific module addressing the relationship between climate change, environmental sustainability, and nutrition. Program content is grounded in Social Cognitive Theory, emphasizing observational learning, self-regulation, outcome expectations, and self-efficacy enhancement. Educational methods will include interactive presentations, group discussions, games, and activity-based learning supported by visual and audio materials to promote engagement and long-term behavioral change.
To reinforce learning and facilitate behavior maintenance, supplementary reinforcement messages will be delivered throughout the intervention period. Communication with participants and their parents will be maintained via digital messaging platforms to support adherence and engagement.
The control group will continue their routine school curriculum without receiving any nutrition-related educational intervention during the study period.
Outcome data will be collected at four time points: baseline (pre-intervention), immediately after completion of the six-week program (post-intervention), and at one-month and three-month follow-up assessments. Data collection is expected to take approximately 25 minutes at each assessment point. The follow-up assessments are intended to evaluate the sustainability of behavior change over time.
The intervention will be implemented during the fall semester of the 2025-2026 academic year following the completion of ethical approval and institutional permissions.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (investigator)
- Number of arms
- 2
- Model description
- The research will be conducted with a parallel group randomized controlled experimental design to examine the effects of a sustainable environmentally friendly nutrition educational intervention program based on social cognitive theory on sustainable environmentally friendly nutrition, nutritional attitudes, and nutritional self-efficacy in adolescents.
| Arm | Type | Receives |
|---|---|---|
| Intervention Group | Experimental | Other: Social Cognitive Theory-Based Educational Intervention ProgramFollowing pretests, participants will be randomly assigned to intervention and participation groups. The intervention group will receive a total of six weeks (six sessions) of the intervention program. Each session is planned to last approximately one class hour (40 minutes). Each session will begin with presentations based on literature, followed by various activities and games to reinforce the topic and support lasting behavioral changes in students. The games were designed according to the gamification model. |
| Control Group | No intervention | –The control group will not receive any intervention and will continue their education in accordance with the current curriculum. Data collection tools will be administered again one and three months after the pretest, posttest, and interventions are completed in parallel with the intervention group. The intervention may be administered after the program is completed, at the request of the school administration. |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (3 listed)
- Being a 6th or 7th grade student
- Volunteering to participate in the study
- Family approval for participation in the study
Key exclusion criteria (4 listed)
- Following a specific nutrition program
- Having communication difficulties (hearing, seeing, or understanding)
- Having plans to travel/move out of town during the work period
- Having special needs
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Social Cognitive Theory-Based Educational Intervention ProgramIn this study, a sustainable eco-friendly nutrition educational intervention program was developed based on social cognitive theory. The sustainable eco-friendly nutrition educational intervention program will last six weeks. Each session will consist of one session per week, covering one module. Each session is expected to last approximately 40 minutes. Each module will utilize presentations based on the content, followed by various activities and games to reinforce the topic and support lasting behavioral changes in students. To reinforce the knowledge and practices adolescents have learned and implemented during the program, and to strengthen the impact of the intervention, the researcher will prepare 12 SMS (Short Message Service) messages using various sources and send them individually to adolescents/parents. | Other | Intervention Group |
Primary outcome
Child Nutrition Self-Efficacy Scale
Time frame: Pre-intervention (week 1), post-intervention (week 6), follow-up time (at the end of month 1 and 3)
It was measured with the "Child Nutrition Self-Efficacy Scale", which is used to evaluate children's self-efficacy regarding nutrition. The scale consists of 15 items rated on a 3-point Likert scale. Total scores range from -15 to +15, with higher scores indicating greater nutrition self-efficacy and healthier food choices.
"Sustainable Eco-Friendly Nutrition Scale
Time frame: Pre-intervention (week 1), post-intervention (week 6), follow-up time (at the end of month 1 and 3)
The "Sustainable Eco-Friendly Nutrition Scale," developed by the researcher, was used to assess participants' sustainable eco-friendly nutritional behaviors. Higher scores on the scale indicate increased sustainable eco-friendly nutritional behavior The scale consists of 19 items rated on a 5-point Likert scale. Total scores range from 19 to 95, with higher scores indicating higher levels of sustainable environmentally friendly nutrition behavior.
Nutrition Attitude Subscale
Time frame: Pre-intervention (week 1), post-intervention (week 6), follow-up time (at the end of month 1 and 3)
It was measured with the "Nutrition Attitude Subscale" used to determine the participants' attitudes towards healthy nutrition. The nutrition subscale consists of 4 items rated on a 4-point Likert scale. Total scores range from 4 to 16, with higher scores indicating more positive nutrition attitudes.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Feb 2026.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Sümeyra Yılmaz principal investigator
Gazi University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Social Cognitive Theory-Based Educational Intervention Program in people with Sustainable Eco-Friendly Nutrition and Self Efficacy, run by Gazi University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 10 Feb 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Child Nutrition Self-Efficacy Scale (time frame: Pre-intervention (week 1), post-intervention (week 6), follow-up time (at the end of month 1 and 3)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Feb 2026.