the Role of Probiotic in Protein Metabolism

September 25, 2025 updated by: Wecare Probiotics Co., Ltd.

Assessing the Impact of Weizmannella Coagulans BC99 on Protein Digestion and Metabolism: A Randomized, Double-Blind Controlled Trial

This study investigates the functional effects of probiotics on athletes by administering Weizmannella coagulans BC99 for 12 weeks. It aims to assess the probiotic's influence on skeletal muscle content, athletic performance, and protein digestion and metabolism. This is achieved by monitoring changes in digestive enzymes, amino acids, body composition, and hormone levels. The research seeks to offer a theoretical foundation for optimizing athletes' training and nutrition strategies and suggests the potential of probiotics in enhancing nutrient absorption and utilization, particularly in individuals with compromised digestive capabilities.

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Enrollment (Actual)

72

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

    • Henan
      • Luoyang, Henan, China, 471000
        • Henan University of Science and Technology

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

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  1. Voluntarily, in writing, and signing the informed consent form, agreeing to participate in this study;
  2. Agree to abide by the protocol and study restrictions;
  3. The subject is not allergic to protein products;
  4. Male or female subjects aged 18 to 35 years old (including 18 and 35 years old);
  5. Male subjects should weigh no less than 50 kilograms. Female subjects must weigh no less than 45 kg. Body mass index (BMI) = weight (kg)/height (m)2, body mass index is in the range of 19.0 to 24.0 kg/m2;
  6. No history of hidden risks of cardiovascular and cerebrovascular diseases, hypertension, diabetes, liver/kidney function, etc. and metabolic abnormalities.

Exclusion Criteria:

  1. Patients with allergies and immune deficiency;
  2. Donated blood or lost a large amount of blood (≥200 mL) within 3 months before taking the trial drug;
  3. Other systemic diseases, including cardiovascular disease, lung disease, liver disease, kidney disease and other serious lesions of important organs, severe metabolic diseases (diabetes, thyroid disease), severe immune system diseases; no cardiovascular and cerebrovascular diseases, hypertension , diabetes, liver/kidney function and other hidden dangers and metabolic abnormalities.
  4. Drugs that affect intestinal flora (including antibacterial drugs, microecological preparations, intestinal mucosal protective agents, Chinese patent medicines, etc.) have been used continuously for more than 1 week within 1 month before screening;
  5. Subjects judged by other researchers to be unfit to participate.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: placebo
Protein powder, 8 bags per day; Storage: sealed, protected from light, placed in a cool and dry place.
The intervention lasts for 12 weeks, with follow-ups conducted at weeks 0, 6, and 12 to assess participants' digestion and absorption rates of dietary protein, as well as to collect fecal samples for analysis of changes in the gut microbiota.
Experimental: Probiotics
48 billion CFU/day BC99 and protein powder; Storage: sealed, protected from light, placed in a cool and dry place.
The intervention lasts for 12 weeks, with follow-ups conducted at weeks 0, 6, and 12 to assess participants' digestion and absorption rates of dietary protein, as well as to collect fecal samples for analysis of changes in the gut microbiota.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Digestibility and absorption of dietary protein
Time Frame: 12 weeks
After probiotic intervention, calculate the changes in subjects' digestibility and absorption rate of dietary protein based on baseline
12 weeks

Collaborators and Investigators

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

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)

February 25, 2024

Primary Completion (Actual)

April 25, 2024

Study Completion (Actual)

July 30, 2024

Study Registration Dates

First Submitted

March 6, 2024

First Submitted That Met QC Criteria

March 6, 2024

First Posted (Actual)

March 13, 2024

Study Record Updates

Last Update Posted (Estimated)

October 1, 2025

Last Update Submitted That Met QC Criteria

September 25, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

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.

Subscribe