Orthorexia NervosaNCT07374770
The Effect of a Mindfulness-Based Eating Behavior Training on Eating Attitudes
A study testing Mindfulness based nutrition education intervention in people with Orthorexia Nervosa, run by Ankara University at 1 site in Turkey (Türkiye).
Trial summary
In recent years, the increasing interest in healthy eating and access to "pure" foods has led to the widespread adoption of selective and control-oriented eating attitudes. In some individuals, this situation has contributed to an increase in tendencies toward Orthorexia Nervosa (ON), in which the pursuit of healthy… Read more about this study
- Who is it for?
- Ages 20 to 65 years
- Conditions the study is for
- Orthorexia Nervosa
- What is being tested?
- Mindfulness based nutrition education intervention
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 87 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 15 May 2025to 4 Oct 2026
- 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 20 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Adults with the cognitive capacity to understand the online questionnaires and the training program
- Access to the internet
- Score 30 or higher on the Düsseldorf Orthorexia Scale (DOS)
Who cannot join
- Presence of any neuropsychiatric disorder
- Diagnosed eating disorder
- Current participation in a mindfulness-based intervention
- Score below 30 on the Düsseldorf Orthorexia Scale (DOS)
Trial locations and contacts
1 site in 1 country.
About this study
Official title: The Effect of a Mindfulness-Based Eating Behavior Training on Eating Attitudes in Individuals With Orthorexic Tendencies: A Randomized Controlled Study
In recent years, the increasing interest in healthy eating and access to "pure" foods has led to the widespread adoption of selective and control-oriented eating attitudes. In some individuals, this situation has contributed to an increase in tendencies toward Orthorexia Nervosa (ON), in which the pursuit of healthy eating takes on a pathological dimension. ON is characterized by perfectionism related to healthy eating, intense anxiety, cognitive rigidity, and, over time, the development of guilt, avoidance behaviors, and social restriction. The promotion of such behaviors through media and social media further hinders the recognition of ON and facilitates its hidden spread. The concept of mindfulness, which has gained prominence in recent years, aims to help individuals observe bodily sensations, emotional responses, and thoughts that arise during the eating process with a nonjudgmental awareness. In the literature, the relationship between ON and mindfulness has mostly been examined through cross-sectional studies, while intervention-based studies targeting orthorexic individuals remain limited. The aim of this study is to examine the effects of a mindfulness-based eating behavior training program developed for orthorexic individuals on eating attitudes. The study will be conducted using a randomized controlled experimental design within the framework of an original program developed with contributions from expert researchers in the fields of psychology and nutrition. The effects of the training program applied to the intervention group will be evaluated comparatively with those of the control group. Data obtained from the study will be analyzed using SPSS, RStudio, and JASP software packages. The distributional properties of the variables will be examined using visual and analytical methods. Group comparisons, changes over time, and group-by-time interaction effects will be analyzed using appropriate parametric and nonparametric statistical methods, and the level of statistical significance will be set at p < 0.05.
- Conditions
- Orthorexia Nervosa
- Being tested
- Mindfulness based nutrition education intervention
- Keywords
- eating disorders, mindfullness
- Medical subject headings
- Orthorexia Nervosa, Feeding and Eating Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Mindfulness based nutrition education interventionBehavioural
This study will be conducted using a randomized controlled experimental design. Participants will be randomly assigned to an intervention group and a control group. Individuals in the intervention group will receive a mindfulness-based eating behavior training program delivered over a six-week period, while the control group will not receive any intervention during this time. Pre- and post-intervention assessments will be administered to both groups to evaluate changes in eating-related outcomes.
| Study group | Role | What they receive |
|---|---|---|
| Education group | Experimental | Education group: Participants assigned to the education group will receive structured educational sessions related to the study topic Receives: Behavioral: Mindfulness based nutrition education intervention |
| Control group | No intervention | Control group: Participants assigned to the control group will receive standard of care and will not receive the investigational intervention. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of participants who completed the training program
Completion is defined as full participation in all components of the education program during the study period.
Measured: Approximately 6-8 weeks after the initiation of the study
Secondary outcomes (1)
Proportion of participants who completed the six-week training program
Completion is defined as attendance at 100% of the scheduled education sessions during the six-week training period. The outcome will be reported as the percentage of participants who met this completion criterion.
Measured: approximately 6-8 weeks after the initiation of the study
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Jan 2026
- Study start15 May 2025
- Primary completion1 Sep 2026
- Study completion4 Oct 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Orthorexia NervosaStudies 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
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 87 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ankara University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, ümüş özbey yücel, Amasya University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07374770
- Sponsor's protocol ID
- AmasyaUni2
- Status last verified
- May 2026
- First submitted
- 11 Jan 2026
- Last updated
- 6 Oct 2026
- 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 6 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of a Mindfulness-Based Eating Behavior Training on Eating Attitudes in Individuals With Orthorexic Tendencies: A Randomized Controlled Study
- ClinicalTrials.gov ID
- NCT07374770
- Acronym / sponsor ID
- AmasyaUni2
- Conditions
- Orthorexia Nervosa
- Keywords
- eating disorders, mindfullness
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 87 participants (actual)
- Lead sponsor
- Ankara UniversityUniversity, hospital or other
- Study start
- 15 May 2025 (actual)
- Primary completion
- 1 Sep 2026 (actual)
- Study completion
- 4 Oct 2026 (actual)
- First posted
- 29 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.
In recent years, the increasing interest in healthy eating and access to "pure" foods has led to the widespread adoption of selective and control-oriented eating attitudes. In some individuals, this situation has contributed to an increase in tendencies toward Orthorexia Nervosa (ON), in which the pursuit of healthy eating takes on a pathological dimension. ON is characterized by perfectionism related to healthy eating, intense anxiety, cognitive rigidity, and, over time, the development of guilt, avoidance behaviors, and social restriction. The promotion of such behaviors through media and social media further hinders the recognition of ON and facilitates its hidden spread. The concept of mindfulness, which has gained prominence in recent years, aims to help individuals observe bodily sensations, emotional responses, and thoughts that arise during the eating process with a nonjudgmental awareness. In the literature, the relationship between ON and mindfulness has mostly been examined through cross-sectional studies, while intervention-based studies targeting orthorexic individuals remain limited. The aim of this study is to examine the effects of a mindfulness-based eating behavior training program developed for orthorexic individuals on eating attitudes. The study will be conducted using a randomized controlled experimental design within the framework of an original program developed with contributions from expert researchers in the fields of psychology and nutrition. The effects of the training program applied to the intervention group will be evaluated comparatively with those of the control group. Data obtained from the study will be analyzed using SPSS, RStudio, and JASP software packages. The distributional properties of the variables will be examined using visual and analytical methods. Group comparisons, changes over time, and group-by-time interaction effects will be analyzed using appropriate parametric and nonparametric statistical methods, and the level of statistical significance will be set at p < 0.05.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Education group | Experimental | Behavioral: Mindfulness based nutrition education interventionEducation group: Participants assigned to the education group will receive structured educational sessions related to the study topic |
| Control group | No intervention | –Control group: Participants assigned to the control group will receive standard of care and will not receive the investigational intervention. |
Who may qualify
- Ages
- 20 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Adults with the cognitive capacity to understand the online questionnaires and the training program
- Access to the internet
- Score 30 or higher on the Düsseldorf Orthorexia Scale (DOS)
Key exclusion criteria (4 listed)
- Presence of any neuropsychiatric disorder
- Diagnosed eating disorder
- Current participation in a mindfulness-based intervention
- Score below 30 on the Düsseldorf Orthorexia Scale (DOS)
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 |
|---|---|---|
| Mindfulness based nutrition education interventionThis study will be conducted using a randomized controlled experimental design. Participants will be randomly assigned to an intervention group and a control group. Individuals in the intervention group will receive a mindfulness-based eating behavior training program delivered over a six-week period, while the control group will not receive any intervention during this time. Pre- and post-intervention assessments will be administered to both groups to evaluate changes in eating-related outcomes. | Behavioural | Education group |
Primary outcome
Number of participants who completed the training program
Time frame: Approximately 6-8 weeks after the initiation of the study
Completion is defined as full participation in all components of the education program during the study period.
1 secondary outcome
Proportion of participants who completed the six-week training program
Time frame: approximately 6-8 weeks after the initiation of the study
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 6 Oct 2026.
- Individual participant dataSharing planned: No
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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?
A study testing Mindfulness based nutrition education intervention in people with Orthorexia Nervosa, run by Ankara 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 6 Oct 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?
Number of participants who completed the training program (time frame: Approximately 6-8 weeks after the initiation of the study). 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 6 Oct 2026.