Effect of Transtheoretical Model Based Nutrition Education on Sustainable Nutrition Behavior in Adolescents
NCT Number: NCT06583499
Status: ACTIVE_NOT_RECRUITING
Study Type: INTERVENTIONAL
Phases: NA
Conditions: Nutrition, Healthy
Interventions: BEHAVIORAL: Sustainable nutrition education based on the transtheoretical model
Sponsor: TC Erciyes University
Sex: ALL
Age: CHILD, ADULT
Enrollment: 70
Study Design: Allocation: RANDOMIZED|Intervention Model: PARALLEL|Masking: NONE|Primary Purpose: OTHER
Start Date: 2024-04-30
Completion Date: 2024-12-07
Locations: Erciyes University, Kayseri, Talas, 38280, Turkey

Summary:
The aim of this intervention study is to evaluate the effect of sustainable nutrition education based on the Transtheoretical Model (TTM) on adolescent behavior.

The main questions to be answered are:

* Do adolescents have sufficient knowledge about sustainable nutrition?
* Can a sustainable nutrition education based on TTM lead to positive changes in the sustainable eating habits of adolescents?

Researchers will compare the study group that received the education with the control group that did not receive the education to determine the effect of TTM based nutrition education on dietary behavior.

Participants will:

* Receive education relevant to the behavior change phase.
* Receive a maximum of two training sessions per week, and the training will last 5 weeks.

Primary Outcome Measures: Change in Transtheoretical Model Based Sustainable Nutrition Behaviour Scales, The scale consists of 44 items. It is a 5-point Likert type scale. Evaluation is made on a scale from 1 to 5, from never to always.As scores increase, behavioral changes towards sustainable and healthy eating, decision-making, and self-efficacy develop in a positive direction., baseline and week 5|Change in Transtheoretical Model Based Sustainable Nutrition Behavior Change Stage Question, Participants will be given a definition of sustainable and healthy nutrition, and they will be asked to evaluate their sustainable and healthy nutrition behaviors according to the definition and to mark which stage they are in according to the TTM change stage.

Stage of behaviour determined according to the options offered in accordance with the definition:

Pre-contemplation Stage : (☐) I do not currently eat according to the definition and do not plan to change my diet in the next 6 months.

Contemplation Stage : ( ☐ ) I do not currently eat according to the definition, but plan to change my diet in the next 6 months.

Preparation Stage : ( ☐ ) I do not currently eat according to the definition, but I plan to eat healthier and consider the environmental impact in the next 30 days.

Action Stage : ( ☐ ) I have been on a sustainable eating plan for 6 months now. Maintenance Stage : ( ☐ ) I have been on a sustainable eating plan for over 6 months., baseline and week 5
Secondary Outcome Measures: Food security survey for individuals aged 12 and over, The survey consists of nine questions. It has a 3-point Likert structure. Responses of "a lot" or "sometimes" are coded as affirmative.The sum of the positive answers given to the questions determines the participant's raw score on the scale.

* Raw score 0-High food security
* Raw score 1-Marginal food security
* Raw score 2-5-Low food security
* Raw score 6-9-Very low food security

Low food security and very low food security outcomes are referred to as "food insecure, baseline|Change in Sustainable and Healthy Eating Behaviors Scale, The scale consists of 34 items. It is a 7-point Likert type scale. Evaluation is made on a scale from 1 to 7, from never to always., baseline and week 5|Change in The Food Frequency Questionnaire (FFQ), It is a food consumption frequency form with 16 nutrients. Participants were required to indicate the frequency of consumption of the specified foods and meals by selecting one of the following options: "every day (5), 5-6 days a week (4), 3-4 days a week (3), 1-2 days a week (2), 1-2 days a month (1) and never (0)"., baseline and week 5|Body Mass Index (BMI), In order to calculate the Body Mass Index (BMI), the height and weight of all participants will be measured.

Height measurement will be made with a portable height meter supported by the wall with light clothes without shoes, with the head upright, looking straight ahead, the line passing through the eyes and ears parallel to the ground, legs straight and closed, arms at the side, shoulders relaxed, heels, hips and shoulders on the Frankfurt plane against the wall.

Weight measurement will be done with a 100 g sensitive digital scale.

BMI will be calculated by dividing weight (kg) by the square of height (m), and age and gender-appropriate percentile values will be determined. A value between the 85th and 95th percentile will be classified as overweight, while a value above the 95th percentile will be classified as obese., baseline and week 5