Health AdultsNCT06941051
Food Sustainability Knowledge and EAT-Lancet Adherence in Turkish Adults
An observational study of Health Adults, run by Ankara Yildirim Beyazıt University at 1 site in Turkey (Türkiye).
Trial summary
This study aimed to evaluate the knowledge and attitudes of Turkish adults toward food sustainability and assess their adherence to the EAT-Lancet dietary pattern. A cross-sectional study was conducted among 3,446 adults aged 19-65 in Türkiye. Read more about this study
- Who is it for?
- Ages 19 to 64 yearsHealthy volunteers can take part
- Conditions the study is for
- Health Adults
- How many people
- 3,446 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 30 Dec 2024to 15 Apr 2025
- Phase
- Observational
- 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 19 to 64 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: Community sample in Türkiye
Who may be able to join
- Individuals residing in Türkiye,
- Aged between 19 and 64 years,
- Voluntarily agreed to participate in the study,
- Completed the questionnaire in full,
- Provided complete anthropometric, demographic, and dietary data.
Who cannot join
- Individuals with alcohol or substance dependence,
- Those diagnosed with chronic diseases (e.g., diabetes, hypertension, cardiovascular disease),
- Illiterate individuals,
- Participants with incomplete questionnaire responses or missing anthropometric or dietary data.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Ankara Yıldırım Beyazıt University
Ankara, Ankara, 06760
About this study
Official title: Evaluation of Food Sustainability Knowledge and Attitudes Toward the EAT-Lancet Dietary Pattern Among Turkish Adults
This study aimed to evaluate the knowledge and attitudes of Turkish adults toward food sustainability and assess their adherence to the EAT-Lancet dietary pattern. A cross-sectional study was conducted among 3,446 adults aged 19-65 in Türkiye. Data were collected using a demographic questionnaire, the Food Sustainability Knowledge and Attitudes Questionnaire (FSKAQ), and a food frequency questionnaire to calculate EAT-Lancet index scores. Statistical analyses included Kruskal-Wallis tests, chi-square tests, and multinomial logistic regression.
Read the detailed description
Objective:
This study aimed to evaluate the knowledge and attitudes of Turkish adults regarding food sustainability and to assess their level of adherence to the EAT-Lancet dietary pattern, a model developed to promote both human health and environmental sustainability.
Methods:
A descriptive, cross-sectional study was conducted across Türkiye with a sample of 3,446 individuals aged between 19 and 65 years. Participants were recruited through voluntary participation, and individuals with chronic illnesses, alcohol or substance dependency, or illiteracy were excluded. Data were collected using a structured questionnaire that included demographic variables (e.g., age, gender, marital status, income, physical activity), anthropometric measurements (height and weight), and dietary intake.
Participants' knowledge and attitudes toward food sustainability were assessed using the Food Sustainability Knowledge and Attitudes Questionnaire (FSKAQ), which has been validated in Turkish. This instrument consists of four sub-dimensions addressing different aspects of sustainability knowledge and attitudes but does not yield a total score. Each sub-dimension is evaluated individually.
Dietary intake was assessed using a food frequency questionnaire (FFQ), and adherence to the EAT-Lancet dietary pattern was calculated using the EAT-Lancet index. This index includes 14 food components categorized as "emphasized" or "restricted" foods and assigns scores from 0 to 3 for each, with higher total scores indicating greater adherence. Final scores were divided into quartiles (Q1-Q4) to classify adherence levels.
All statistical analyses were conducted using SPSS 26.0. Descriptive statistics were used to summarize participant characteristics. The Kruskal-Wallis H test and chi-square tests were used for group comparisons, and multinomial logistic regression was applied to identify factors associated with higher EAT-Lancet index adherence. A significance level of p < 0.05 was considered statistically significant.
- Conditions
- Health Adults
- Keywords
- Sustainable nutrition, EAT-Lancet, Food sustainability knowledge
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Health adults | Group/Cohort Description: The study included 3446 individuals aged 19-65. Data were collected using a demographic survey and Food Sustainability Knowledge and Attitudes Questionnaire. Food Consumption Frequency was used to calculate the EAT lancet index. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Food Sustainability Knowledge and Attitudes Questionnaire
This scale was designed to assess participants' knowledge and attitudes toward sustainable nutrition and consists of a total of 7 questions (5 related to knowledge and 2 to attitudes). The scale includes four sub-dimensions: Knowledge of Sustainability and Sustainable Nutrition (9 items), Knowledge of Statements Defining a Sustainable Diet (12 items), Knowledge of Planetary Health and Sustainability (10 items), and Attitudes Toward Sustainable Nutrition (2 items). The scale does not yield a total score; only specific sub-dimensions are scored independently. The "Knowledge of Statements Defining a Sustainable Diet" sub-dimension, designed in Likert type, is scored item by item. In the "Knowledge of Planetary Health and Sustainability" dimension, only the second section is scored. In the "Attitudes Toward Sustainable Nutrition" sub-dimension, each of the two items is scored separately. The remaining questions are not scored.
Measured: Baseline
EAT-Lancet Index
EAT-Lancet Index:
The EAT-Lancet Index evaluates adherence to a sustainable and healthy diet through 14 food components, categorized as either "restricted" (e.g., red meat, poultry, eggs, added sugars) or "emphasized" (e.g., fruits, vegetables, legumes, whole grains, nuts, fish). Intakes are assessed in grams per day (uncooked weight). Each component is scored from 0 (low adherence) to 3 (high adherence), with a total possible score ranging from 0 to 42. Scores were divided into quartiles (Q1-Q4) to indicate adherence levels. Food frequency questionnaire data were used for calculation.
Measured: Baseline
Secondary outcomes (2)
Food Consumption Frequency
It was used to determine how often and how much of food groups or nutrients were consumed. Consumption frequency was given as day, month or week. Food groups include milk and dairy products, meat-egg-legumes, vegetables and fruits, grains and oilseeds. Participants were asked how often they consumed which food (everyday, 5-6 times a week, 3-4 times a week, 1-2 times a week, 1 time in 15 days, 1 time in a month, 1 time in 3 months, 1 time in 6 months, never) and used for EAT lancet index calculation.
Measured: Baseline
Sociodemographic characteristics
Sociodemographic characteristics will be assessed using a structured questionnaire developed by the researchers. The questionnaire will include items measuring age, gender, education level, and income status. The results will be presented as numbers and percentages for each characteristic.
Measured: Baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Apr 2025
- Study start30 Dec 2024
- Primary completion1 Apr 2025
- Study completion15 Apr 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Health AdultsStudies of the same condition, open and under way.
- More trials run by Ankara Yildirim Beyazıt UniversityThe sponsor's other registered studies.
- 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
- Observational
- Observational model
- Case only
- Time perspective
- Cross-sectional
- Enrolment
- 3,446 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ankara Yildirim Beyazıt University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Emine Elibol, Ankara Yildirim Beyazıt University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06941051
- Sponsor's protocol ID
- AYBUELİBOL008
- Status last verified
- Apr 2025
- First submitted
- 16 Apr 2025
- Last updated
- 23 Apr 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 23 Apr 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Food Sustainability Knowledge and Attitudes Toward the EAT-Lancet Dietary Pattern Among Turkish Adults
- ClinicalTrials.gov ID
- NCT06941051
- Acronym / sponsor ID
- AYBUELİBOL008
- Conditions
- Health Adults
- Keywords
- Sustainable nutrition, EAT-Lancet, Food sustainability knowledge
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 3,446 participants (actual)
- Lead sponsor
- Ankara Yildirim Beyazıt UniversityUniversity, hospital or other
- Study start
- 30 Dec 2024 (actual)
- Primary completion
- 1 Apr 2025 (actual)
- Study completion
- 15 Apr 2025 (actual)
- First posted
- 23 Apr 2025 (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 aimed to evaluate the knowledge and attitudes of Turkish adults toward food sustainability and assess their adherence to the EAT-Lancet dietary pattern. A cross-sectional study was conducted among 3,446 adults aged 19-65 in Türkiye. Data were collected using a demographic questionnaire, the Food Sustainability Knowledge and Attitudes Questionnaire (FSKAQ), and a food frequency questionnaire to calculate EAT-Lancet index scores. Statistical analyses included Kruskal-Wallis tests, chi-square tests, and multinomial logistic regression.
Detailed description
Objective:
This study aimed to evaluate the knowledge and attitudes of Turkish adults regarding food sustainability and to assess their level of adherence to the EAT-Lancet dietary pattern, a model developed to promote both human health and environmental sustainability.
Methods:
A descriptive, cross-sectional study was conducted across Türkiye with a sample of 3,446 individuals aged between 19 and 65 years. Participants were recruited through voluntary participation, and individuals with chronic illnesses, alcohol or substance dependency, or illiteracy were excluded. Data were collected using a structured questionnaire that included demographic variables (e.g., age, gender, marital status, income, physical activity), anthropometric measurements (height and weight), and dietary intake.
Participants' knowledge and attitudes toward food sustainability were assessed using the Food Sustainability Knowledge and Attitudes Questionnaire (FSKAQ), which has been validated in Turkish. This instrument consists of four sub-dimensions addressing different aspects of sustainability knowledge and attitudes but does not yield a total score. Each sub-dimension is evaluated individually.
Dietary intake was assessed using a food frequency questionnaire (FFQ), and adherence to the EAT-Lancet dietary pattern was calculated using the EAT-Lancet index. This index includes 14 food components categorized as "emphasized" or "restricted" foods and assigns scores from 0 to 3 for each, with higher total scores indicating greater adherence. Final scores were divided into quartiles (Q1-Q4) to classify adherence levels.
All statistical analyses were conducted using SPSS 26.0. Descriptive statistics were used to summarize participant characteristics. The Kruskal-Wallis H test and chi-square tests were used for group comparisons, and multinomial logistic regression was applied to identify factors associated with higher EAT-Lancet index adherence. A significance level of p < 0.05 was considered statistically significant.
Study design
- Observational model
- Case only
- Time perspective
- Cross-sectional
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Health adults | – | –Group/Cohort Description: The study included 3446 individuals aged 19-65. Data were collected using a demographic survey and Food Sustainability Knowledge and Attitudes Questionnaire. Food Consumption Frequency was used to calculate the EAT lancet index. |
Who may qualify
- Ages
- 19 to 64 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- Community sample in Türkiye
Key inclusion criteria (5 listed)
- Individuals residing in Türkiye,
- Aged between 19 and 64 years,
- Voluntarily agreed to participate in the study,
- Completed the questionnaire in full,
- Provided complete anthropometric, demographic, and dietary data.
Key exclusion criteria (4 listed)
- Individuals with alcohol or substance dependence,
- Those diagnosed with chronic diseases (e.g., diabetes, hypertension, cardiovascular disease),
- Illiterate individuals,
- Participants with incomplete questionnaire responses or missing anthropometric or dietary data.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Food Sustainability Knowledge and Attitudes Questionnaire
Time frame: Baseline
This scale was designed to assess participants' knowledge and attitudes toward sustainable nutrition and consists of a total of 7 questions (5 related to knowledge and 2 to attitudes). The scale includes four sub-dimensions: Knowledge of Sustainability and Sustainable Nutrition (9 items), Knowledge of Statements Defining a Sustainable Diet (12 items), Knowledge of Planetary Health and Sustainability (10 items), and Attitudes Toward Sustainable Nutrition (2 items). The scale does not yield a total score; only specific sub-dimensions are scored independently. The "Knowledge of Statements Defining a Sustainable Diet" sub-dimension, designed in Likert type, is scored item by item. In the "Knowledge of Planetary Health and Sustainability" dimension, only the second section is scored. In the "Attitudes Toward Sustainable Nutrition" sub-dimension, each of the two items is scored separately. The remaining questions are not scored.
EAT-Lancet Index
Time frame: Baseline
EAT-Lancet Index: The EAT-Lancet Index evaluates adherence to a sustainable and healthy diet through 14 food components, categorized as either "restricted" (e.g., red meat, poultry, eggs, added sugars) or "emphasized" (e.g., fruits, vegetables, legumes, whole grains, nuts, fish). Intakes are assessed in grams per day (uncooked weight). Each component is scored from 0 (low adherence) to 3 (high adherence), with a total possible score ranging from 0 to 42. Scores were divided into quartiles (Q1-Q4) to indicate adherence levels. Food frequency questionnaire data were used for calculation.
2 secondary outcomes
Food Consumption Frequency
Time frame: Baseline
Sociodemographic characteristics
Time frame: Baseline
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 23 Apr 2025.
- Individual participant dataSharing planned: No
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Healthy Adult Participants
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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Health Adults, run by Ankara Yildirim Beyazıt 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 5 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 23 Apr 2025. 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?
Food Sustainability Knowledge and Attitudes Questionnaire (time frame: Baseline). The study lists 2 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 23 Apr 2025.