Prebiotic pill aimed to tame morning stress hormone – but trial never started
NCT ID NCT06566157
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study planned to test whether taking a prebiotic supplement for six weeks could reduce morning cortisol levels in healthy young adults aged 18-25 with mild to moderate stress. Participants would have provided saliva, stool, urine, and blood samples. However, the trial was withdrawn before any volunteers were enrolled, so no results are available.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Prebiotic supplement (WellBiome® - inulin, XOS, magnesium chloride)
- What this could lead to
- If it had worked, this could point toward a simple dietary supplement to help manage stress and improve wellbeing in young adults.
- What could go wrong
- The trial was withdrawn before enrolling anyone, so no data was collected. Even if run, the effect on cortisol is uncertain and may not translate to real-world stress relief.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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
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Locations
-
NIHR Southampton Clinical Research Facility
Southampton, Hampshire, SO16 6YD, United Kingdom
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