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The Effects of Intermittent Fasting on Anthropometric Measurements and Metabolic Parameters in Prediabetic Patients

NCT07713394 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 36

Last updated 2026-07-20

No results posted yet for this study

Summary

The goal of this randomized controlled trial is to learn about the short-term effects of an 8-hour time-restricted eating (TRE) protocol combined with caloric restriction in women aged 18-55 years with prediabetes.

The main question it aims to answer is:

Does an 8-hour time-restricted eating protocol combined with caloric restriction improve anthropometric measurements and metabolic parameters more than caloric restriction alone in women with prediabetes?

Researchers will compare the time-restricted eating (IF) group to a control group following a conventional calorie-restricted diet with no time restriction, to see whether time-restricted eating provides additional benefit beyond that of caloric deficit alone.

Participants will:

Be randomly assigned to either the IF group (all meals consumed within an 8-hour window, 16-hour daily fast) or the control group (calorie-restricted diet, no time restriction), both matched for a 500 kcal/day energy deficit Follow their assigned diet for 5 weeks, with daily dietary reminders and support Undergo assessments at baseline and at the end of the 5-week intervention, including body weight, BMI, waist/hip circumference, body composition (bioimpedance), and fasting blood tests (glucose, insulin, HbA1c, total cholesterol, HDL-C, LDL-C, triglycerides)

Conditions

Interventions

BEHAVIORAL

Intermittent fasting

Eating in a specific hours of days, and being fast on remain of the day.

BEHAVIORAL

Caloric restriction

The participants followed a conventional hypocaloric diet with no time restriction. Their meals were distributed over 5-6 eating occasions throughout the day, spaced at 3-3.5 hour intervals

Sponsors & Collaborators

  • Ataturk University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
55 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-01-01
Primary Completion
2023-12-31
Completion
2023-12-31

Countries

  • Turkey (Türkiye)

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07713394 on ClinicalTrials.gov