Effect of Curd Cheese on Metabolic Health in Adults

June 27, 2026 updated by: Süleyman Kılıç

The Effect of a Diet Intervention Supplemented With Curd Cheese on Anthropometric Measurements, Glycemia, and Lipidemia in Adults Applying to Darıca Healthy Life Center

This randomized controlled trial aims to evaluate the effects of a diet supplemented with curd cheese on anthropometric measurements, glycemia, and lipid profile in overweight adults. Participants aged 40-64 years with a BMI above 25 will be randomly assigned to an intervention group receiving 100 g of curd cheese at breakfast for 8 weeks or to a control group receiving a standard healthy diet without curd cheese. Primary outcomes include changes in fasting blood glucose and HbA1c, while secondary outcomes are changes in body composition, waist circumference, and lipid profile (HDL, LDL, triglycerides, total cholesterol).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Metabolic disorders, including obesity, dyslipidemia, and type 2 diabetes mellitus, are major public health concerns worldwide. Dietary protein quality and source have been shown to play important roles in regulating glucose and lipid metabolism. Whey-derived proteins are rich in branched-chain amino acids and bioactive peptides that may enhance insulin sensitivity, promote satiety, and improve lipid profiles.

Curd cheese (lor cheese) is a traditional dairy product obtained during whey processing, characterized by its high-quality protein, low fat content, and rich calcium composition. It represents an affordable and accessible food that could be incorporated into dietary interventions targeting metabolic health improvement.

This study aims to investigate the effects of a curd cheese-supplemented diet on anthropometric parameters, glycemic control (including fasting glucose and HbA1c), and lipid profile (total cholesterol, HDL, LDL, and triglycerides) in adults attending the Darıca Healthy Life Center. Participants will follow a controlled dietary intervention with or without curd cheese for eight weeks.

The hypothesis of this study is that regular consumption of curd cheese as part of a balanced diet may improve metabolic parameters through increased protein intake, better glycemic regulation, and enhanced lipid metabolism.

Study Type

Interventional

Enrollment (Actual)

44

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey (Türkiye)
    • DARICA
      • Kocaeli, DARICA, Turkey (Türkiye), 41700
        • Darıca Healthy Life Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Individuals aged 40-64 years.
  • Body Mass Index (BMI) greater than 25 kg/m².
  • Individuals who voluntarily applied to the Darıca Healthy Life Center and agreed to participate in the study.
  • Individuals who have had HbA1c, glucose, and lipid profile measurements within the past month, or will have these measurements taken as part of this study.
  • Individuals who are able to comply with the curd cheese-supplemented dietary intervention for at least 8 weeks.
  • Individuals who have signed the written informed consent form.

Exclusion Criteria:

  • Individuals diagnosed with diabetes mellitus.
  • Individuals with chronic diseases such as renal, hepatic, or cardiac failure.
  • Individuals with lactose intolerance or allergy to milk and dairy products.
  • Pregnant or lactating women.
  • Individuals with restricted protein intake for any medical reason.
  • Individuals who have participated in another dietary intervention program within the last 3 months.
  • Individuals diagnosed with psychiatric disorders requiring regular treatment.
  • Individuals with irregular lifestyles or communication difficulties that may prevent adherence to the dietary intervention.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Curd Cheese Supplemented Diet Group

Intervention Group - Arm Description:

Participants in this arm follow a customized dietary plan for 8 weeks that includes daily servings of curd cheese. The diet is balanced for energy and macronutrient distribution according to individual needs. Curd cheese, as a high-quality protein and calcium source, is included to assess its specific effects on glucose and lipid parameters. This arm is designed to evaluate the unique metabolic effects of curd cheese supplementation compared to the control group.
Dietary supplement: Curd Cheese Supplemented Diet
This intervention consists of daily consumption of 100 grams of curd cheese as part of a personalized dietary plan for 8 weeks. Curd cheese is consumed at breakfast and integrated into the participants' regular meal plans. The diet is balanced for total energy and macronutrient distribution according to individual nutritional needs. All participants in this arm receive the same type and brand of curd cheese throughout the intervention period.
No Intervention: Standard Diet Group
Participants in this arm follow a standard dietary plan for 8 weeks without curd cheese. The diet is balanced according to individual energy and macronutrient needs. This arm serves as a comparison group to determine the specific effects of curd cheese supplementation observed in the intervention group.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in HbA1c Levels
Time Frame: Baseline and after 8 weeks of intervention
To evaluate the effect of a curd cheese-supplemented diet on glycemic control by assessing changes in HbA1c levels from baseline to the end of the 8-week intervention.
Baseline and after 8 weeks of intervention

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Fasting Glucose
Time Frame: Baseline and after 8 weeks
To assess short-term glycemic response by measuring fasting blood glucose at baseline and after the 8-week intervention.
Baseline and after 8 weeks
Change in Lipid Profile
Time Frame: Baseline and after 8 weeks
To evaluate the effect of curd cheese supplementation on lipid metabolism by assessing changes in total cholesterol, LDL, HDL, and triglycerides from baseline to the end of the intervention.
Baseline and after 8 weeks
Change in Anthropometric Measures
Time Frame: Baseline and after 8 weeks
To evaluate changes in body mass index (BMI) from the start to the end of the intervention.
Baseline and after 8 weeks
Change in Anthropometric Measures
Time Frame: Baseline and after 8 weeks
To assess changes in body weight from baseline to the end of the intervention.
Baseline and after 8 weeks
Change in Anthropometric Measures
Time Frame: Baseline and after 8 weeks
To evaluate changes in body fat percentage from the beginning to the end of the intervention.
Baseline and after 8 weeks
Change in Anthropometric Measures
Time Frame: Baseline and after 8 weeks
To assess changes in waist circumference from the beginning to the end of the intervention.
Baseline and after 8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Süleyman Kılıç

Collaborators

Halic University

Investigators

  • Principal Investigator: Ahmet M GÜNAL, PhD, RD, Haliç University
  • Study Director: Salim YILMAZ, PhD, Acıbadem Mehmet Ali Aydınlar University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 12, 2025

Primary Completion (Actual)

May 22, 2026

Study Completion (Actual)

June 16, 2026

Study Registration Dates

First Submitted

June 16, 2026

First Submitted That Met QC Criteria

June 27, 2026

First Posted (Actual)

June 30, 2026

Study Record Updates

Last Update Posted (Actual)

June 30, 2026

Last Update Submitted That Met QC Criteria

June 27, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • OkanU-KO-3

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Individual participant data (IPD) will not be shared outside the research team to ensure participant privacy and confidentiality.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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