Impact of seaweed food additive carrageenan on gut health
Official title: Investigating the Impact of the Seaweed Derived Food Additive, Carrageenan, on the Human Gut Microbiome
Run by University of Reading · NCT06738329 · Data updated 2026-11-12
This study tests whether a seaweed food additive called carrageenan can improve gut health in healthy people by changing their gut bacteria and making them feel better.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 55 Years |
| Sex | All |
| Enrollment | 99 (estimated) |
| Sponsor | University of Reading Academic / other |
| Locations | 1 site (Reading, Reading) |
| Status | Recruiting |
| Started | October 1, 2024 |
| Main results expected | May 30, 2025 |
| Study ends | May 30, 2025 |
| Registry record updated | December 17, 2024 |
| Trial ID | NCT06738329 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are healthy individuals without any gut disorders or recent antibiotic use.
✕Probably not a fit
Patients with gut disorders such as IBS or IBD, or those with food allergies or intolerances, may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study investigates the effects of carrageenan, a seaweed-derived food additive, on the human gut microbiome. Healthy participants will consume either a gummy sweet containing carrageenan and inulin or a placebo for four weeks, with stool and urine samples collected at three intervals. The study aims to determine if these products can positively alter gut bacterial composition and improve gastrointestinal comfort. The design is randomized and double-blind to ensure unbiased results.
Why it matters
Potential benefit: If successful, this study could lead to healthier snack options that promote gut health.
How similar studies have gone: While there have been lab-based experiments showing potential benefits, this approach in humans is relatively novel and untested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Healthy individuals Exclusion Criteria: * Prescribed antibiotics in the last 3 months * Individuals with any gut disorders such as IBS or IBD * individuals with any food allergies or intolerances * Individuals who regularly consume pre or probiotics
Where it's running
-
University of Reading
Reading, Reading, United Kingdom Recruiting
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.