Effects of a Single Dose of Wild Blueberries on Mood and Executive Function in Healthy Emerging Adults

NCT ID: NCT05717452

Last Updated: 2023-02-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-02-01

Study Completion Date

2023-04-30

Brief Summary

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This study aims to investigate whether consuming a drink containing powdered blueberries (equivalent to 150 g of fresh fruit) can improve mood and executive function in healthy emerging adults.

Detailed Description

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The present study will examine the psychological effects of a single dose of freeze-dried wild blueberries using a randomized, single-blind, placebo-controlled design. A total of 80 participants will be randomly allocated to consume either a drink prepared with 22 g blueberry powder or a drink prepared with 22 g placebo powder matched for macronutrients, flavour and colour.

Conditions

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Mood Affect Executive Function

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Standard two-arm trial with a placebo arm and active intervention arm
Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Blueberry drink

Group Type EXPERIMENTAL

Blueberry drink

Intervention Type DIETARY_SUPPLEMENT

22 g freeze-dried wild blueberry (Vaccinium angustifolium) powder mixed with 250 ml water.

Placebo drink

Group Type PLACEBO_COMPARATOR

Placebo drink

Intervention Type DIETARY_SUPPLEMENT

22 g placebo powder matched for macronutrients, color, and flavor mixed with 250 ml water.

Interventions

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Blueberry drink

22 g freeze-dried wild blueberry (Vaccinium angustifolium) powder mixed with 250 ml water.

Intervention Type DIETARY_SUPPLEMENT

Placebo drink

22 g placebo powder matched for macronutrients, color, and flavor mixed with 250 ml water.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* 18 to 25 years of age

Exclusion Criteria

* Any medically significant condition or mental health disorder (e.g. diabetes, endocrine or gastrointestinal disorders)
* Taking medication (excluding hormonal contraception or medication for asthma/seasonal allergies)
* Allergy to blueberries or any other Vaccinium species
Minimum Eligible Age

18 Years

Maximum Eligible Age

25 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Wild Blueberry Association of North America

OTHER

Sponsor Role collaborator

University of Reading

OTHER

Sponsor Role lead

Responsible Party

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Prof Claire Williams

Prof. Claire Williams

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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School of Psychology and Clinical Languages, University of Reading

Reading, Berkshire, United Kingdom

Site Status RECRUITING

Countries

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United Kingdom

Central Contacts

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Claire Williams, Professor

Role: CONTACT

+441183787540

Facility Contacts

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Claire Williams, Professor

Role: primary

+441183787540

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

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2022-140-RC

Identifier Type: -

Identifier Source: org_study_id

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