Study the Effect of Plant-based Beverage Consumption on the Gut Microbiome in Healthy Adults

July 23, 2026 updated by: Åsa Håkansson, Lund University

Analysis of the Intestinal Flora Composition After Consumption of Plant-based Beverages

The goal of this intervention study is to analyse the microbiota composition after the plant-based beverage consumption. The main questions are to evaluate if the plant-based beverage can have a beneficial effect on the gut microbiota. Participants will consume different plant-based beverages for two weeks, and microbiota will be analysed. Researchers will compare the microbiota composition before and after consumption.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

60

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

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
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

- 18-65 years of age. • must be able to complete the form digitally.

Exclusion Criteria:

  • Must not be diagnosed with gastrointestinal diseases, autoimmune diseases or have diseases or medications that cause immune deficiency, such as MS, type 1 diabetes, cancer or HIV
  • must not take antibiotics during the study period
  • must not have a milk protein allergy

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Active group
Participants will consume the assigned dairy milk for two weeks.
Dietary supplement: plant-based beverage
Participants will consume the assigned plant-based beverages for two weeks.
Experimental: Experimental group
Participants will consume the assigned plant-based beverages for two weeks.
Dietary supplement: plant-based beverage
Participants will consume the assigned plant-based beverages for two weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in gut microbiome alpha diversity
Time Frame: up to 24 weeks
Gut microbiome alpha diversity will be assessed using 16S rRNA gene sequencing and quantified using alpha diversity indices (e.g., Shannon diversity index).
up to 24 weeks
Change in gut microbiome beta diversity
Time Frame: Upto 24 weeks
Gut microbiome beta diversity will be assessed using 16S rRNA gene sequencing by comparing community composition between samples using beta diversity distance metrics (e.g., Bray-Curtis dissimilarity or UniFrac distances).
Upto 24 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in the relative abundance of gut bacterial taxa
Time Frame: Baseline to Week 24
The relative abundance of bacterial taxa identified by 16S rRNA gene sequencing will be compared between study groups and over time.
Baseline to Week 24

Collaborators and Investigators

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

Sponsor

Lund University

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)

November 10, 2025

Primary Completion (Estimated)

July 30, 2026

Study Completion (Estimated)

July 31, 2026

Study Registration Dates

First Submitted

June 29, 2026

First Submitted That Met QC Criteria

July 23, 2026

First Posted (Actual)

July 28, 2026

Study Record Updates

Last Update Posted (Actual)

July 28, 2026

Last Update Submitted That Met QC Criteria

July 23, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • Plant-based beverages

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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