NCT07461870

Brief Summary

The goal of this clinical trial is to examine the efficacy of a Mediterranean diet based on local Indonesian foods on alterations in gut microbiota, body composition, and metabolic biomarkers in obese subjects. The main questions it aims to answer are: Dose Mediterranean diet modification based on local food ingredients can result in greater weight loss, greater reductions in inflammatory markers, improve gut microbiota diversity compared to a balanced low-calorie diet in obese patients? Researchers will compare Mediterranean diet modification based on local food to low calorie diet. Participant will:

  • Participants received a low-calorie diet of approximately 1.500 kcal/day according to their randomized group assignments, consisting of breakfast, lunch, dinner, and snacks. Both groups will receive dietary education and physical activity guidance tailored to their weight loss needs.
  • Participants were instructed to complete a food intake record and report their consumption to the researchers using intake forms and photographs of the food packaging. Weekly meetings were held via Zoom to evaluate dietary compliance.
  • Blood samples and fecal specimens were collected at baseline (week 0) and at week 4 of the study.

Trial Health

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Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
54

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Dec 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 9, 2025

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

January 20, 2026

Completed
19 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 8, 2026

Completed
20 days until next milestone

Study Completion

Last participant's last visit for all outcomes

February 28, 2026

Completed
10 days until next milestone

First Posted

Study publicly available on registry

March 10, 2026

Completed
Last Updated

March 10, 2026

Status Verified

March 1, 2026

Enrollment Period

2 months

First QC Date

January 20, 2026

Last Update Submit

March 6, 2026

Conditions

Keywords

obesitydiet strategyweight loss

Outcome Measures

Primary Outcomes (1)

  • The implementation of a locally adapted Mediterranean has the potential to improve anthropometric outcomes profiles in obese.

    Title of the research is The Mediterranean Diet Based on Local Foods for Obese Patients: A Study of Anthropometric Parameters, Inflammatory Markers, and Gut Microbiota. Based on PRS review of each outcome the findings are described as follows: Anthropometric outcomes (ratio data scale): 1. Body mass index (BMI) will be calculated from weight (kilograms) and height (meters). Divide weight in kilograms (kilograms) by height in meters squared (meters²) expressed as kg/m². 2. Waist-to-hip ratio (WHR) is calculated by dividing waist circumference (centimeters) by hip circumference (centimeters) and expressed as cm. (WHR = Waist / Hip)

    The data were collected at baseline (week 0) and at week 4 of the study.

Secondary Outcomes (15)

  • To determine the characteristics of the research subjects based on age.

    The data were collected at baseline (week 0)

  • To determine the characteristics of the research subjects based on underlying disease.

    The data were collected at baseline (week 0)

  • To determine the characteristics of the research subjects based on nutritional status.

    The data were collected at baseline (week 0)

  • To determine the characteristics of the research subjects based on body composition.

    The data were collected at baseline (week 0)]

  • To determine the characteristics of the research subjects based on intake patterns.

    The data were collected at baseline (week 0)

  • +10 more secondary outcomes

Study Arms (2)

Low calorie diet

ACTIVE COMPARATOR

In the control group, Participants received a low calorie diet providing approximately 1,500 kcal/day, the diet provided 50-54% carbohydrates, 25-30% fat (SFA \< 12%, MUFA 8-12%, PUFA 5-8%), and 19-20% protein.

Other: Locally Adapted Mediterranean Diet

Locally Adapted Mediterranean Diet

EXPERIMENTAL

In the interventional group, participants received a locally adapted Mediterranean diet providing approximately 1,500 kcal/day, with a macronutrient distribution of 50% carbohydrates, 30-34% fat (saturated fatty acids ≤ 8%, monounsaturated fatty acids 15-20%, polyunsaturated fatty acids 5-10%), and 17-20% protein.

Other: Low calorie diet

Interventions

In the interventional group, participants received a locally adapted Mediterranean diet providing approximately 1,500 kcal/day, with a macronutrient distribution of 50% carbohydrates, 30-34% fat (saturated fatty acids ≤ 8%, monounsaturated fatty acids 15-20%, polyunsaturated fatty acids 5-10%), and 17-20% protein.

Low calorie diet

In the control group, Participants received a low calorie diet providing approximately 1,500 kcal/day, the diet provided 50-54% carbohydrates, 25-30% fat (SFA \< 12%, MUFA 8-12%, PUFA 5-8%), and 19-20% protein.

Locally Adapted Mediterranean Diet

Eligibility Criteria

Age18 Years - 50 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Women who were obese, as defined by a BMI of at least 27.
  • Aged 18-50 years
  • Subjects with a non-shift work schedule
  • Willing to follow the research procedures and sign the informed consent form.

You may not qualify if:

  • Subjects with a history of type 2 diabetes, kidney disease, liver disease, or thyroid disorders, as indicated by medical history or medical records.
  • Contraindications for the MF-BIA examination include the use of pacemakers or implants and a history of amputation.
  • Pregnant or within 40 days of childbirth
  • Adults with edema
  • Taking medications with hyperglycemic effects, such as beta-blockers, thiazides, corticosteroids, calcineurin inhibitors, anti-dyslipidemic medications (e.g., statins, fibrates, niacin, and bile acid sequestrants), or antibiotics.
  • History of food allergies

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Nutrition, Faculty of Medicine, University of Indonesia, Jakarta, Indonesia

Jakarta Pusat, Jakarta Special Capital Region, 10430, Indonesia

Location

Related Links

MeSH Terms

Conditions

ObesityWeight Loss

Interventions

Caloric Restriction

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBody Weight Changes

Intervention Hierarchy (Ancestors)

Diet TherapyNutrition TherapyTherapeuticsEnergy IntakeDietNutritional Physiological PhenomenaDiet, Food, and NutritionPhysiological Phenomena

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: * This study will be conducted using a single-blind randomized clinical trial design to evaluate the effects of a locally adapted Mediterranean diet intervention on anthropometric measures (BMI, WHR), body composition parameters (fat mass, fat-free mass, visceral fat), IL-6 levels, I-FABP levels, the TyG index, and gut microbiota composition. * The intervention group consists of obese patients who receive dietary education and a Mediterranean-based diet modification using local foods. The control group is composed of obese patients who will receive low calorie diet. * The study will be conducted at the Nutrition Clinic of Dr. Cipto Mangunkusumo Hospital (RSCM) and the Faculty of Medicine, Universitas Indonesia (FKUI), Jakarta.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principle Investigator, Clinical Nutrition Specialist

Study Record Dates

First Submitted

January 20, 2026

First Posted

March 10, 2026

Study Start

December 9, 2025

Primary Completion

February 8, 2026

Study Completion

February 28, 2026

Last Updated

March 10, 2026

Record last verified: 2026-03

Locations