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Effect of Ramadan fasting and combined exercise training on gut microbiota and metabolic health

Effect of Ramadan fasting and combined exercise training on gut microbiota and metabolic health in overweight and obese men: A randomized controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT20170120032066N6
Enrollment
68
Registered
2026-02-16
Start date
2026-02-18
Completion date
Unknown
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Overweight and obese. Overweight and obesity

Interventions

Intervention 1: Intervention group: participants will observe Ramadan fasting for 4 weeks and, under the supervision of a dietitian, will receive a diet with a 20% caloric deficit consisting of 50% ca
each session will include 10 resistance exercises performed in a circuit format (2–3 sets of 10–12 repetitions per exercise), followed by 20–30 minutes of treadmill running at 60–65% of heart rate res

Sponsors

Shahrood University of Technology
Lead Sponsor

Eligibility

Sex/Gender
Male
Age
18 Years to 55 Years

Inclusion criteria

Inclusion criteria: Age range 18 to 50 years Body mass index over 25 kg/m2 Inactive lifestyle

Exclusion criteria

Exclusion criteria: Having weight-loss diet Not permitted for exercise Use of antibiotic medications or probiotic supplements Presence of metabolic or gastrointestinal diseases including inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) Failure to adhere to the prescribed fasting protocol Failure to adhere to the exercise training protocol

Design outcomes

Primary

MeasureTime frame
Gut firmicutes to bacteroidetes ratio. Timepoint: Measurement of stool firmicutes to bacteroidetes ratio before and after 4 weeks of intervention. Method of measurement: DNA extraction and analysis using 16S rRNA gene sequencing.;Short-chain fatty acids. Timepoint: Measurement of short-chain fatty acids before and after 4 weeks of intervention. Method of measurement: Chromatography.;Lipopolysaccharide-binding protein serum. Timepoint: Measurement of serum lipopolysaccharide-binding protein serum before and after 4 weeks of intervention. Method of measurement: Using a commercial kit through ELISA method.;Alpha diversity. Timepoint: Assessment of Alpha diversity of gut microbiota before and after 4 weeks of intervention. Method of measurement: Molecular sequencing and bioinformatics methods.

Secondary

MeasureTime frame
Weight. Timepoint: Measurement of weight before and after 4 weeks intervention. Method of measurement: Using digital scale.;Body fat percentage. Timepoint: Measurement of body fat percentage before and after 4 weeks intervention. Method of measurement: Bioempedance method by body composition analyzer InBody270.;High-density lipoprotein (HDL). Timepoint: Measurement of high-density lipoprotein before and after 4 weeks intervention. Method of measurement: Enzymatic colorimetric assay.;Fasting blood glucose. Timepoint: Measurement of fasting blood glucose before and after 4 weeks intervention. Method of measurement: Enzymatic colorimetric assay.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactFarhad Gholami

Shahrood University of Technology

gholami-fa@shahroodut.ac.ir+98 23 3239 5900

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Jun 11, 2026