About this trial
This study aims to compare the effects of genotype-based dietary counseling with standard dietary counseling based on general recommendations on weight loss and reduction of body fat. Participants will receive individualized dietary guidance either informed by genetic information or based on conventional dietary guidelines. Changes in body weight and body composition will be assessed over the course of the intervention.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Adults aged ≥18 years
Body mass index (BMI) ≥25 kg/m²
Greek-speaking (able to read and understand Greek and provide informed consent)
Willing and able to participate in dietary counseling and study assessments for the duration of the study
Disqualifiers
Current use of pharmacological treatments for weight loss, including but not limited to GLP-1 receptor agonists, appetite suppressants, or other anti-obesity medications
Participation in any structured weight-loss intervention or program within the previous 3 months, including commercial weight-loss programs or medically supervised dietary interventions
Use of medications known to significantly affect body weight or body composition, such as systemic corticosteroids, antipsychotic medications, or medications for thyroid disorders
Pregnancy or lactation
Trial design
Parallel
Treatments tested in this trial
Genotype-Based Dietary Counseling
BehavioralThis intervention consists of dietary counseling informed by individual genetic information. Nutrition guidance is provided by qualified nutrition professionals and aims to support weight management and reduction of body fat over the intervention period.
Standard Dietary Counseling
BehavioralThis intervention consists of dietary counseling based on general dietary guidelines and standard nutrition recommendations. Counseling is delivered by qualified nutrition professionals without the use of genetic information.
Treatment groups
Trial outcomes
Primary outcomes
Change in Fat Mass (%)
Change in whole-body fat mass percentage from baseline to end of the intervention
Secondary outcomes
Change in Body Weight
Change in body weight from baseline to end of the intervention
Change in Lipid Profile
Change in fasting lipid profile parameters (e.g., total cholesterol, LDL-C, HDL-C, triglycerides) from baseline to end of the intervention.
Sponsors and contacts
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