Do vegan yogurts and meat substitutes really boost your gut?
NCT ID NCT06696222
First seen Aug 21, 2026 · Last updated Aug 21, 2026
Summary
This study asks whether modern fermented vegan products—like plant-based yogurt and meat substitutes—are healthier for the gut than the dairy and meat they replace. Researchers will compare these diets in healthy volunteers and in people with inflammatory bowel disease (IBD), looking at changes in gut bacteria and the strength of the intestinal barrier. Over four weeks, participants will eat either vegan or ordinary versions of these foods, with stool and blood samples taken before and after to measure effects.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Fermented vegan diet (vegetarian yogurt and meat alternatives) compared with ordinary dairy yogurt and meat
- What this could lead to
- If successful, this could clarify whether modern vegan products genuinely support gut health and may inform dietary advice for people with inflammatory bowel disease.
- What could go wrong
- This is an early, non-randomized study with a short four-week diet period, so effects may be modest or not generalizable. Diet changes can also cause digestive discomfort.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 240 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2024
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Healthy volunteers in two groups * IBD in two groups (ulcerative colitis or Crohn's disease) Exclusion Criteria: * For healthy any disease requiring medication * For IBD previous extensive operation * For both antibiotics the past month
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Dept of Gastroenterology
RECRUITINGMalmö, 21428, Sweden
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Dept of Gastroenterology
RECRUITINGMalmö, 21428, Sweden
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