Spice and tea combo tested for stomach troubles

NCT ID NCT07052890

Completed Symptom relief Sponsor: Dr Anthony Hobson Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether a supplement containing curcumin, green tea, and vitamin D could help control symptoms in people with diarrhea-predominant irritable bowel syndrome (IBS-D). 78 adults with IBS-D took either the supplement or a placebo for 4 weeks, followed by 4 weeks where everyone got the supplement. The main goal was to see if symptoms like belly pain and bloating improved more with the supplement than with placebo.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: a dietary supplement containing curcumin, green tea extract, and vitamin D3
What this could lead to: If it works, this could offer a natural, over-the-counter option to help control IBS-D symptoms like belly pain and diarrhea.
What could go wrong: This is a small, early-stage trial with only 78 people and a short 4-week treatment period, so results may not apply to everyone. Supplements are not strictly regulated, and individual responses can vary.

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Conditions

The condition(s) this trial relates to.

irritable bowel syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

IRRITABLE BOWEL SYNDROME (IBS) IRRITABLE BOWEL SYNDROME WITH DIARRHEA (IBS-D)

Contacts and locations

Locations

The Functional Gut Clinic Cambridge

Cambridge, CB2 1LR, United Kingdom
The Functional Gut Clinic London

London, NW1 6PU, United Kingdom
The Functional Gut Clinic Manchester

Manchester, m3 4bg, United Kingdom

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