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Study identifier: NCT07742319 Synced from ClinicalTrials.gov · August 03, 2026
● Not Yet Recruiting

How Differences in the Composition of Microorganisms in the Soil Affect the Microorganisms in the Human Gut, Through the Vegetables That Grow in it: a Process Pilot Study With Healthy Participants

Condition: Pilot Study  ·  Sponsor: Leiden University Medical Center

PhaseNA
Planned participants10
Who can joinAll sexes, 18 Years to 70 Years
Healthy volunteersYes

About this study

There are two objectives for this clinical trial. The first is to test whether, with the current logistics and study setup it is possible to perform the study well and see where there might be bottlenecks we couldn't predict. The second objective is to investigate the relation between the composition of the microorganisms in the soil, the crops that grow in that soil, and the human gut. During the study participants will drink three vegetable smoothies a day, for two periods of one week. The only difference between the two periods is whether the vegetables come from a farm with a low diversity of microorganisms in the soil or a high diversity. Participants will be asked to give blood samples and turn in fecal samples before and after each period.

This description comes directly from the study's public registry record.

Talk to the study team

Jeroen Maljaars, MD, PhD  ·  +31 71 526 3575  ·  P.W.J.Maljaars@lumc.nl

Maarten Tushuizen, MD, PhD  ·  +31 71 526 9111  ·  M.E.Tushuizen@lumc.nl

Always discuss trial participation with your own doctor first.

Locations (1)

Leids Universitair Medisch CentrumLeiden, South Holland, Netherlands

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