Actively Recruiting

Phase Not Applicable
Age: 20Years - 40Years
All Genders
Healthy Volunteers
NCT05104502

Immunomodulatory Effects of Fasting in Healthy Adults

Led by University of California, Davis · Updated on 2025-12-02

4

Participants Needed

1

Research Sites

218 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

This is a clinical trial assessing the effects of fasting on the immune system in healthy adults. Immune profiling, gene expression profiling, and flow cytometry on peripheral blood mononuclear cells (PBMCs) will be performed and we hypothesize that a period of fasting will alter the immune system in healthy adults.

CONDITIONS

Official Title

Immunomodulatory Effects of Fasting in Healthy Adults

Who Can Participate

Age: 20Years - 40Years
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Age between 20 and 40 years
  • Male gender
  • Body mass index (BMI) between 19 and 27 kg/m2
  • Weight of 120 pounds or more
  • Fasting glucose between 70 and 100 mg/dL
  • Willingness to undergo 36 hours of water-only fasting
  • Willingness to collect samples of each bowel movement during the study
  • Willingness to perform blood glucose testing using a provided kit during fasting
Not Eligible

You will not qualify if you...

  • Current smoking
  • Anemia
  • Pregnancy or breastfeeding
  • Chronic diseases such as diabetes, thyroid disease, metabolic syndrome, cancer, or previous cardiovascular events
  • Gastrointestinal diseases including irritable bowel syndrome, Crohn's disease, ulcerative colitis, or celiac disease
  • Consumption of more than 1 alcoholic drink per day
  • Extreme dietary or exercise patterns
  • Recent weight changes greater than 10% in the last six months
  • Regular use of over-the-counter allergy or pain medications more than once per week
  • Use of prescription lipid medications or supplements affecting lipoprotein metabolism
  • Use of hormonal birth control methods such as oral contraceptive pills, hormonal IUDs, rings, or patches

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 1 location

1

UC Davis

Sacramento, California, United States, 95816

Actively Recruiting

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Research Team

A

Antonio Ji

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

BASIC_SCIENCE

Number of Arms

1

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Immunomodulatory Effects of Fasting in Healthy Adults | DecenTrialz