An interventional study of Fibre arm in Affect (Mental Function), Sleep and Anxiety, sponsored by University of Reading. Active, not recruiting at 1 site in United Kingdom. Open to participants aged 18 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-12-03.
Sponsored by University of Reading · Not applicable, Interventional, and Basic science
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.
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.
4,868 studies on the registry are indexed under Anxiety Disorders; 1,390 are open to participants now.
This study's planned enrollment of 40 is below the median of 80 across 4,174 interventional studies indexed under Anxiety Disorders.
Browse Anxiety Disorders studies →University of Reading is the lead sponsor of 146 studies on the registry; 20 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Other: Fibre arm
Increasing daily fibre intake by 10 grams
Generalized Anxiety Disorder 7 scale scores
A validated self-report measure of anxiety
Time frame: From baseline (pre intervention) to week 2 (post intervention)
Patient Health Questionaire-8 scores
A validated self-report measure of depression
Time frame: From baseline (pre intervention) to week 2 (post intervention)
Perceived Stress Scale scores
A validated self-report measure of stress
Time frame: From baseline (pre intervention) to week 2 (post intervention)
Pittsburgh Sleep Quality Index scores
A validated self-report measure of sleep quality
Time frame: From baseline (pre intervention) to week 2 (post intervention)
Gastrointestinal Symptom Rating Scale Scores
A validated self-report measure of gastrointestinal symptoms that includes 15-items (combined into five symptom clusters depicting Reflux, Abdominal pain, Indigestion, Diarrhoea and Constipation)
Time frame: From baseline (pre intervention) to week 2 (post intervention)
Revised Life Orientation Test Scores
A validated self-report measure of one's dispositional level of optimism
Time frame: From baseline (pre intervention) to week 2 (post intervention)
EPIC Norfolk Food Frequency Questionnaire (FFQ)
The FFQ is a validated tool for gauging the average habitual dietary intake of micro and macronutrients of an individual in the UK. Data will be processed using the FETA software.
Time frame: Baseline (pre intervention) only
FiberScreen Scores
A questionnaire that assesses fibre intake. It will be used to screen participants. Individuals who adhere to a high fibre diet (\>20g fibre/day) will be excluded from the study.
Time frame: From baseline (pre intervention) to week 2 (post intervention)
Plan to share: No
No publications or documents are linked to this record.
This study is active, not recruiting, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.
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University of Reading