Could a daily probiotic soothe teen anxiety?
NCT ID NCT07752342
First seen Aug 07, 2026 · Last updated Aug 07, 2026
Summary
This study tests whether a daily probiotic supplement, Bifidobacterium longum 1714™, can improve wellbeing in adolescents aged 15-17 who report mild-to-moderate anxiety. Over 8 weeks, participants take one capsule daily and report changes in anxiety, sleep, fatigue, and cognitive function. The goal is to see if this probiotic, previously linked to stress and sleep benefits in adults, might help teens in everyday, real-world conditions.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Bifidobacterium longum, 1714™ (a probiotic dietary supplement)
- What this could lead to
- If it works, this probiotic could offer a simple, non-drug way to help teens manage mild-to-moderate anxiety and improve sleep and wellbeing.
- What could go wrong
- This is an early, open-label study without a placebo, so results may be influenced by expectations. Effects seen in adults may not translate to adolescents, and the supplement may not outperform a placebo.
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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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Study contacts
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Contact
Email: •••••@•••••
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Contact
Email: •••••@•••••
Locations
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Comet Clinical
Cardiff, United Kingdom
Contact Email: •••••@•••••
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