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Fibre and Mental Wellbeing Feasibility Trial | Clinical Trials | Clareo Health

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Fibre and Mental Wellbeing Feasibility Trial

Bridging the Fibre Gap: A Pre-post Single-arm Feasibility Trial on Increased Fibre Intake and Mental Wellbeing

NCT06899607•University of Reading

Summary

This feasibility study will explore whether adding an extra 10 grams of fibre to participants' daily diet for two weeks would improve their mental health and wellbeing.

Detailed Description

The current pre-post single-arm feasibility trial will investigate whether increasing daily fibre intake by 10 grams for two weeks enhance depression, anxiety, stress, sleep quality, gut health, and optimism in 18-40 year-old young adults. Participants will be provided a list of high fibre food items. Outcome measures will be acquired before and after 2-weeks . These will include cognitive measures of measures of depression, anxiety, and stress symptomatology; sleep; gastrointestinal symptomatology; optimism.

Eligibility

Age

18 - 40 years

Sex

ALL

Healthy Volunteers

Yes

Inclusion Criteria

•Aging between 18-40 years old
•Having normal vision and hearing
•Having a body mass index between 18.5 and 30
•Not following a high fibre diet \>20g fibre/day as assessed by using the FiberScreen

Exclusion Criteria

•Smoking
•Having food allergies
•Following restrictive and/or unbalanced diets
•Changing dietary intake majorly in past month
•Being diagnosed with any psychiatric or neurologic conditions
•Being diagnosed with any cardiometabolic diseases, or hypertension or thrombosis related disorders or suffer from thyroid disease
•Currently taking anticoagulants, antiplatelet medication, antidepressants, proton-pump inhibitors
•Currently consuming prebiotic or probiotic supplements or laxatives
•Continuous antibiotic use for \> 3 days within 1 month prior to enrolment
•Continuous use of weight-loss drug for \> 1 month before screening
+1 more criteria

Locations (1)

University of Reading, School of Psychology and Clinical Languages

Reading, Berkshire, United Kingdom

Key Dates

Start Date

May 1, 2025

Primary Completion Date

September 5, 2027

Completion Date

September 5, 2027

Last Updated

December 3, 2025

Enrollment

ESTIMATED participants

Conditions

Affect (Mental Function)SleepAnxietyStress

Interventions

Fibre arm

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Data Source & Attribution

This clinical trial information is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

ClinicalTrials.gov last update: December 3, 2025Data synced to Clareo: March 29, 2026

Modifications: This data has been reformatted for display purposes. Eligibility criteria have been parsed into inclusion/exclusion sections. Location data has been geocoded to enable distance-based search. For the authoritative and most current information, please visit ClinicalTrials.gov.

Neither the United States Government nor Clareo Health make any warranties regarding the data. Check ClinicalTrials.gov frequently for updates.

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Fibre and Mental Wellbeing Feasibility Trial

Inclusion Criteria

Exclusion Criteria

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