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Gut Microbiota Diversity and Composition clinical trials and research
As of November 12, 2026, Find a Trial lists 4 Gut Microbiota Diversity and Composition clinical trials that are recruiting, at sites in 3 countries (most in United Kingdom (2), Hungary (1), Norway (1)). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 4Clinical trials
- 3Countries
Newest Gut Microbiota Diversity and Composition clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Barley and kefir to support gut health in active adults | — | Bergen | Recruiting | Oct 8, 2026 |
| How common dietary fats change gut bacteria and metabolic markers | — | Glasgow | Recruiting | Apr 24, 2026 |
| How vitamin C affects gut bacteria and their activity in healthy adults | — | Glasgow | Recruiting | Feb 4, 2026 |
| Tracking gut microbiome changes after severe burns | — | Debrecen, Hajdú-Bihar | Recruiting | Jan 9, 2026 |
All recruiting trials (4)
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Barley and kefir to support gut health in active adults
This study tests whether a daily barley and kefir meal for four weeks can change gut microbiota in physically active adults and whether those changes relate to certain metabolites in blood and urine.
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How common dietary fats change gut bacteria and metabolic markers
We will test whether replacing part of daily fat with butter, coconut oil, olive oil, or sunflower oil for two weeks changes gut bacteria and related blood markers in healthy adults aged 20–50.
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How vitamin C affects gut bacteria and their activity in healthy adults
This study will test whether taking a moderate (200 mg) then a high (1000 mg) daily dose of vitamin C changes gut bacteria composition and short-chain fatty acid levels in healthy adults.
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Tracking gut microbiome changes after severe burns
Researchers will test whether gut microbiome patterns change over time after severe burns and whether those changes relate to inflammation and recovery in adults with major burns.
Related topics
Quick answers
How many Gut Microbiota Diversity and Composition clinical trials are recruiting right now?
4, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 3 countries. The most sites are in United Kingdom (2 trials), Hungary (1 trial), Norway (1 trial). Each study page lists its sites and which ones are recruiting.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.