Food DNA Digestion Study

This study is looking at how quickly naturally occurring food DNA moves through the human digestive system. We want to understand how long it takes for food DNA to be digested and leave the body. Participants will take a special reconstitutable food powder (a mix of Gatorade Zero Powder and camu camu, kelp, or similar powders) and provide stool samples. We expect that most food DNA will pass through the digestive system within 24 hours. This research is for healthy adults aged 18 and older who can provide stool samples and have access to the MSRBIII building. The study is currently recruiting 20 participants.

Study design: This is an interventional pilot study involving 20 healthy participants. It uses a fixed-order within-subjects design.
What's involved: You will provide a baseline stool sample, consume a single dose of the study food powder, and then provide the next five stool samples. You will also need to visit the MSRBIII building at your convenience.
Compensation: Not stated in the trial record.
Follow-up: The primary endpoint, transit time of food DNA, is measured at approximately 5-8 days.

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Food DNA Digestion

Not Yet Recruiting

NAAges 18+Interventional

Duke University

~20 participants

Updated 2026-08-07 on ClinicalTrials.gov

What's tested:Reconstitutable food powder

At a glance

Recruiting sites

0 of 1 listed site is recruiting right now

RecruitingSuspended, closed, or not yet open

What they're measuring

Transit time of naturally occurring food DNA through the human digestive tract

Measured over Approximately 5-8 days

Conditions

Digestion Rate

Where it's being run

1 sites across 1 states

North Carolina1

Study leadership

Lawrence David · PRINCIPAL_INVESTIGATOR · Duke University

Who to contact

Veronica M Carrion

[email protected]

919-660-7341

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Eligibility criteria

Inclusion

Above age 18?

Able to provide stool samples at no risk to the participant?

Does the participant have card access to the MSRBIII building, and is the participant able to visit this building (at times of the participant's convenience) for the purposes of this study?

Exclusion

Already consume camu camu, maqui or kelp in typical diet?

Have a history or current diagnosis of irritable bowel syndrome?

Have a history or current diagnosis of inflammatory bowel disease?

Have a history or current diagnosis of type 2 diabetes?

Have a history or current diagnosis of chronic kidney disease with decreased kidney function?

Have a history or current diagnosis of intestinal obstruction?

Have a history or current diagnosis of untreated colorectal cancer?

Has the participant had a colonoscopy within the past month?

What this trial measures

Transit time of naturally occurring food DNA through the human digestive tractApproximately 5-8 days
Determined by quantifying the presence of food DNA in stool samples over a specified period post-consumption.

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