Meal delivery study tracks gut bugs in real time
NCT ID NCT04758715
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study follows 65 adults over time to see how their diet, including meals provided by a commercial service, changes the bacteria in their gut. Participants use a food diary and provide samples so researchers can track which microbes increase or decrease after eating certain foods. The goal is to better understand the link between diet and the gut microbiome.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- commercial meal service meals
- What this could lead to
- If successful, this could help explain how specific foods affect gut bacteria, potentially guiding future dietary recommendations for health.
- What could go wrong
- This is a small observational study with no treatment or control group, so results may not apply broadly or lead to direct health advice.
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 65 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2021
- Expected to finish
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Feb 2030
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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19 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * willing to sign consent and have samples collected, * able to read and speak English, * participants must be willing to use an electronic food diary and consume study provided foods, * only individuals able to provide a US address will be included. Exclusion Criteria: * Subjects not able to sign consent on their own accord (ie requiring a Legally Authorized Representative \[LAR\]), * Current parenteral nutrition, * Received cancer treatment within past 6 months prior to signing consent, * Taken antibiotic treatment within the past 1 month prior to signing consent, * Received oral x-ray contrast within the past 1 month prior to signing consent, * Received any type of gastrointestinal bowel preparation in the past 1 month prior to signing consent, * History of organ transplant, * Shellfish allergy, * Insect allergy, * Cacti allergy, * Carmine allergy, * Dragon fruit (pitaya) allergy,
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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.
Contacts and locations
Locations
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University of Nebraska - Lincoln
Lincoln, Nebraska, 68588, United States
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Other studies related to the condition(s) this trial covers.