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NCT Number: NCT07112131

Non-Diet Nutrition Education and Its Effects on Eating Behavior, Body Image, and Well-Being in Adult Women

The goal of this clinical trial is to evaluate whether a non-diet nutrition education program can improve eating behaviors, body image, and well-being in normal-BMI women aged 19-35 years. The main questions it aims to answer are:

* Does participation in an 8-week non-diet nutrition education program improve eating behavior, body image, and well-being over time in the intervention group compared to the control group? * Is there a significant difference between the intervention and control groups in eating behavior, body image, and well-being after the intervention?

Researchers will compare an intervention group receiving an 8-week non-diet nutrition education with a control group receiving no intervention, to see if the program leads to improvements in psychological and behavioral outcomes without focusing on weight loss.

Participants will:

* Complete pre- and post-intervention assessments, including validated questionnaires on eating behavior (DEBQ, FCQ, IES-2), body image (BAS, Stunkard Figure Rating Scale), and psychological well-being (WHO-5, Rosenberg Self-Esteem Scale), as well as a 3-day food diary. * Be randomly assigned to either the intervention group (8-week online non-diet nutrition education sessions) or the control group (no intervention). * Engage in 8 weekly, 60-minute sessions focused on intuitive eating, body acceptance, and health-promoting nutrition.

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Key information

Conditions

Eating Behaviors Behavior Behavior, Animal Body Image Feeding Behavior Personal Satisfaction Psychological Well-Being Well-Being, Psychological Young Adult Females

Age range

19 year–35 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Female,
  • Aged between 19-35 years,
  • Body Mass Index (BMI) between 18.5-24.9,

Exclusion criteria

  • Pregnant or breastfeeding,
  • Diagnosed eating disorder or other psychiatric condition,
  • Currently enrolled in a weight loss program,
  • Following a restrictive diet due to medical conditions.

Treatment and study plan

Non-Diet Nutrition Education Program

Behavioral

The intervention is an 8-week online nutrition education program based on non-diet approaches, including intuitive eating, rejecting diet mentality, honoring hunger, body acceptance, and well-being. Each weekly session is 60 minutes long and involves interactive discussions and home practices.

Primary outcomes

  1. Eating Behavior

    Time frame: Baseline and 8 weeks after intervention

    Assessed using the Dutch Eating Behavior Questionnaire (DEBQ): 33 items with three subscales (Restrained Eating, Emotional Eating, External Eating), rated on a 5-point Likert scale (1 = never, 5 = very often). Higher subscale scores indicate greater tendency toward that eating behavior.

  2. Food Choice Motivation

    Time frame: Baseline and 8 weeks after intervention

    Assessed using the Food Choice Questionnaire (FCQ): 36 items, 9 subscales (Health, Mood, Convenience, Sensory Appeal, Natural Content, Price, Weight Control, Familiarity, Ethical Concern), rated on a 4-point Likert scale (1 = not at all important, 4 = very important). Higher scores indicate greater importance assigned to that factor in food choice.

  3. Intuitive Eating

    Time frame: Baseline and 8 weeks after intervention

    Assessed using the Intuitive Eating Scale-2 (IES-2): 23 items, 4 subscales (Unconditional Permission to Eat, Eating for Physical Rather Than Emotional Reasons, Reliance on Hunger and Satiety Cues, Body-Food Choice Congruence), rated on a 5-point Likert scale (1 = strongly disagree, 5 = strongly agree). Higher scores reflect more intuitive eating.

  4. Body Appreciation

    Time frame: Baseline and 8 weeks after intervention

    Assessed using the Body Appreciation Scale (BAS): 9 items, no subscales, rated on a 5-point Likert scale (1 = never, 5 = always). Higher scores indicate greater body appreciation.

  5. Body Dissatisfaction

    Time frame: Baseline and 8 weeks after intervention

    Assessed using the Stunkard Figure Rating Scale: visual selection of perceived vs. ideal body silhouette (1-9 scale). Body dissatisfaction is calculated as the difference between the actual and ideal figure selections.

  6. Well-Being

    Time frame: Baseline and 8 weeks after intervention

    Assessed using the WHO-5 Well-Being Index: 5 items, no subscales, scored 0-5 (0 = at no time, 5 = all the time); raw scores are converted to a 0-100 scale. Higher scores indicate better well-being.

  7. Self-Esteem

    Time frame: Baseline and 8 weeks after intervention

    Assessed using the Rosenberg Self-Esteem Scale (RSES): 10 items, no subscales, rated on a 4-point Likert scale (1 = strongly disagree, 4 = strongly agree). Higher scores reflect greater self-esteem.

Secondary outcomes

  1. Dietary Intake

    Time frame: Baseline and 8 weeks after intervention

    Description:

    Assessed via 3-day food record (2 weekdays and 1 weekend day). Food items are recorded by participants using visual portion guides. Analysis performed using eBebis (Turkish Nutrition Database software).

    Unit of Measure:

    • Energy intake (kilocalories/day)
    • Macronutrient intake (grams/day)

Study contacts

Contact information is provided by the study sponsor or research team.

Beril Köse

CONTACT

[email protected]

Tuğba Türkcan

CONTACT

[email protected]

+90 507 528 9293

Sponsors and collaborators

Lead sponsor

Tuğba TÜRKCAN

Other

Registry information

Official study title

The Effect of Non-Diet Nutrition Education on Eating Behavior, Body Image, and Well-Being in Adult Women: A Randomized Controlled Trial

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Aug 8, 2025
Registry last updated
Aug 8, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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