Dairy vs. soy: which boosts gut health best?
NCT ID NCT07257913
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at how adding milk, fermented milk, or soy drinks to a healthy diet changes gut health in 20 middle-aged adults with belly fat and slightly high cholesterol or blood sugar. Participants follow a diet based on Canadian guidelines and drink one of the three beverages three times a day for 9 days. Researchers measure gut barrier function, inflammation, and digestion to see if dairy offers extra benefits over soy.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- milk, fermented milk, and soy beverage
- What this could lead to
- If successful, this could show that dairy products improve gut health better than soy alternatives, guiding dietary recommendations.
- What could go wrong
- This is a very small, short-term study (20 people, 9 days) with no disease treatment. Results may not apply to the general population.
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 20 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2025
- Expected to finish
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Aug 2026
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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40 to 65 years
- 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: * IMC \< 45 * Waist circumference \> 80 cm (Women) or 94 cm (men) Exclusion Criteria: * History of diabetes (types 1 and 2), CVD, enteropathy, immune diseases or bariatric surgery * Cancer (diagnostic and/or treatment) during the last 5 years * Antibiotic consumption during the last 3 months * Active smoking or cannabis consumption * Lactose intolerance or allergy, any allergies to foods given in the intervention phases * Irregular defecation patterns * Pregnancy/lactation * Inability to speak French
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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
1 site. 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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Institute of Nutrition and Functional Foods (INAF)
RECRUITINGQuébec, Quebec, G1V 0A6, Canada