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Effects of Grape Powder on Psychological Distress and Gut Microbiota in College Students

NCT07214428 · Status: ACTIVE_NOT_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2026-01-15

No results posted yet for this study

Summary

The goal of this trial is to investigate the effect of freeze-dried table grape powder (FTGP) on psychological distress and gut microbiota in college students. The main questions it aims to answer are:

Does FTGP reduce anxiety, depression, and perceived stress? Does FTGP improve the gut microbiota? Researchers will compare FTGP to a placebo to see how FTGP affects psychological distress and gut microbiota.

Participants will:

Drink a daily supplement containing FTGP or a placebo for 4 weeks. Record consumption of grape powder or placebo in a compliance log. Complete surveys and provide stool samples. Three in-person visits.

Conditions

  • Gut Microbiota
  • Psychological Distress

Interventions

DIETARY_SUPPLEMENT

freeze-dried table grape powder

48g freeze-dried table grape powder/day for 4 weeks

DIETARY_SUPPLEMENT

Placebo

48g placebo/day for 4 weeks

Sponsors & Collaborators

  • California Table Grape Commission

    collaborator OTHER

  • Rutgers, The State University of New Jersey

    lead OTHER

Principal Investigators

  • Guojun Wu · Rutgers, The State University of New Jersey

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
30 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-10-20
Primary Completion
2025-12-24
Completion
2026-05-30

Countries

  • United States

Study Locations

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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 NCT07214428 on ClinicalTrials.gov