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Utilizing GI: Exploring an Optimum Glycaemic Profile for Cognitive Function Across the Day

NCT ID: NCT03346746

Last Updated: 2017-11-17

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

COMPLETED

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-02-01

Study Completion Date

2017-08-30

Brief Summary

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This study provides participants with two diets that vary in their glycaemic index values (low vs. high), whilst also measuring cognitive performance and mood.

Detailed Description

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Therefore, the current study introduces cognitive testing into study procedures. Participants will consume the favourable and unfavourable conditions (each containing three meals) on separate days following a crossover, randomised, couterbalanced design. The primary dependent variable is cognitive function, whilst secondary measures include glucose and mood. It is hypothesised that the favourable meal profile will be associated with cognitive and physiological benefits relative to the unfavourable meal profile.

Conditions

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Cognitive Performance Glucose, Low Blood Glucose, High Blood Mood

Keywords

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cognition glycaemic mood diet

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

All participants took part in both conditions.
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Participants
Participants were not told what diet they were consuming each day.

Study Groups

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Low GI diet

This diet contained three Low GI meals. This was the Low Glycaemic Diet intervention.

Group Type EXPERIMENTAL

Low Glycaemic Diet

Intervention Type DIETARY_SUPPLEMENT

This intervention was a diet that provided participants with three meals with a low GI value. These meals were breakfast (9am), lunch (midday) and a snack (3pm).

High GI diet

This diet contained three meals, all with a high GI value. This was the High Glycaemic Diet intervention.

Group Type EXPERIMENTAL

High Glycaemic Diet

Intervention Type DIETARY_SUPPLEMENT

This intervention was a diet that provided participants with three meals with a high GI value. These meals were breakfast (9am), lunch (midday) and a snack (3pm).

Interventions

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Low Glycaemic Diet

This intervention was a diet that provided participants with three meals with a low GI value. These meals were breakfast (9am), lunch (midday) and a snack (3pm).

Intervention Type DIETARY_SUPPLEMENT

High Glycaemic Diet

This intervention was a diet that provided participants with three meals with a high GI value. These meals were breakfast (9am), lunch (midday) and a snack (3pm).

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Aged between 18 and 25 years of age
* Willing to participate in the entire study (signed informed consent required)
* Male or female (not pregnant)

Exclusion Criteria

* Suffer from diabetes
* Are anaemic
* Smoker
* Have any food intolerances or allergies
* History of alcohol or drug misuse
* Diagnosed with any of the following;

* High blood cholesterol
* High blood pressure
* Thyroid disorder
* Heart problems, stroke or any vascular disease in the past 12 months
* Inflammatory diseases such as rheumatoid arthritis
* Bone related conditions, such as osteoporosis
* Renal, gastrointestinal, respiratory, liver disease or cancer
* You are presently taking part in another clinical trial or research study
* You are an elite athlete (very high intensity training more than 3 times a week)
* You are currently on a specific diet, and are unwilling to cease during the testing period
* You are intending to regularly use medication which affects gastrointestinal motility
Minimum Eligible Age

18 Years

Maximum Eligible Age

25 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Matthew Grout

OTHER

Sponsor Role lead

Responsible Party

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Matthew Grout

Doctoral Researcher

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Daniel J Lamport, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Reading

Locations

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University of Reading

Reading, Berkshire, United Kingdom

Site Status

Countries

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United Kingdom

Other Identifiers

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2016-206-DL

Identifier Type: -

Identifier Source: org_study_id