Impact of ß-glucan Supplementation on Subjective Appetite and Gastrointestinal Appetite Hormones.

July 31, 2023 updated by: Dr Dalia Malkova, University of Glasgow

Impact of ß-glucan Supplementation During Calorie and Carbohydrate Restriction on Subjective Appetite and Gastrointestinal Appetite Hormones in Overweight Adults.

The goal of this clinical trial is to how supplementation with beta -glucan during two days of caloric and carbohydrate restriction impacts subjective appetite and gastrointestinal appetite hormones in healthy overweight adults. In addition, the study aims to investigate the impact on gastric emptying since appetite and energy intake following food or supplement consumption can also relate to their impact on gastric emptying and as reduced hunger and enhanced satiety have been reported to be linked with delayed gastric emptying. The study will also investigate how these interactions impact after meal responses of insulin and glucose and thus insulin sensitivity. The caloric restriction during breakfasts and dinners will be achieved by low-calorie ready meals in the format of the counterweight PRO800 diet and lunches will be low in carbohydrates. It aims to test whether the addition of β-glucan to calorie and carbohydrate-restricted meals amends postprandial responses of appetite hormones and subjective appetite.

participated will be assigned in double-blinded randomised crossover study, intervention group will be supplemented with 3g beta-glucan and the control group supplemented with 3g placebo.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

This will be a randomised crossover study which will be conducted on overweight and obese women with BMI of 27-35 kg/m2 and 18 -50 years old. Subjects will conduct two experimental trials, each lasting over 2 days and involving the consumption of two low-calorie meal replacements, one for breakfast and another one for dinner, and a low carbohydrate lunch meal for 2 consecutive days. In one trial, during each meal participants will take 3g of beta-glucan supplement and 3 g of cellulose as a placebo will be taken in another trial. On day 1 of each trial, a low-calorie breakfast will be consumed at the metabolic investigation laboratory at New Lister Building (NLB) of Glasgow Royal Infirmary and low carbohydrate lunch and low-calorie dinner at home. On day 2, breakfast and lunch will be consumed at the laboratory. On day 2, prior to the breakfast, 1000mg of paracetamol will be taken, and blood samples, breath hydrogen tests, appetite questionnaires and metabolic rate measurements will be obtained for 7 hours after the completion of breakfast. Trials will be separated by a 7-day washout period. All measurements will be collected at New Lister Building (NLB). Prior to the main experimental trials, participants will be asked to undergo a screening session which includes answering a health screening questionnaire and undergoing measurements of height, body weight, body composition and resting energy expenditure.

Study Type

Interventional

Enrollment (Estimated)

25

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

Participants will be asked to confirm whether they had stable body weight for at least 3 months and are not following a diet to gain or lose weight. They will also be asked to confirm that they are non-smokers, not on long-term medication, not pregnant or lactating, and have no known food allergies to the ingredients in test meals and to Paracetamol.

Exclusion Criteria:

Participants will be excluded if they are smokers and have irregular menstruation cycles, use any type of medication, exercised more than 75min a week, were pregnant or lactating. Participants will be required to be free of any medical condition, including having food allergies and stable body weight for at least 3 months preceding the study. Participants will be excluded if they are allergic to paracetamol and any types of food and were following any weight loss diet for the last 3 months, are vegan or vegetarian or follow any diet other than the typical Western diet. Participants will be expected to be not on any kind of dietary supplement at the time of the study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Low calorie and low carbohydrate meals with β-glucan.
On day 1, a low-calorie breakfast will be consumed at the metabolic investigation laboratory at New Lister Building (NLB) of Glasgow Royal Infirmary but low carbohydrate lunch and low-calorie dinner at home. On day 2, breakfast and lunch will be consumed at the laboratory and, prior to the breakfast, 1000mg of paracetamol will be taken, blood samples, breath hydrogen tests, appetite questionnaires will be obtained for 7 hours after the completion of breakfast. 3g β-glucan will be consumed with each meal on both days.
Dietary supplement: β-glucan
Consuming 3g β-glucan with each meal.
Experimental: Low calorie and low carbohydrate meals with placebo.
On day 1, a low-calorie breakfast will be consumed at the metabolic investigation laboratory at New Lister Building (NLB) of Glasgow Royal Infirmary but low carbohydrate lunch and low-calorie dinner at home. On day 2, breakfast and lunch will be consumed at the laboratory and, prior to the breakfast, 1000mg of paracetamol will be taken, blood samples, breath hydrogen tests, appetite questionnaires will be obtained for 7 hours after the completion of breakfast. 3g cellulose will be consumed with each meal on both days.
Dietary supplement: Placebo
Consuming 3g Cellulose with each meal.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in gastrointestinal appetite hormones and appetite scores between the two groups.
Time Frame: On day 2 of each experimental trial.
Taking blood samples every 30 minutes to test the changes in appetite hormones. Asking participants to answer questionnaires which will be calculated by Validated Visual Analogue Scale (VAS). The scale is 100 mm in length with words anchored to a minimum and a maximum of the ''desire to eat'', ''fullness'', ''hunger'' and ''satiety'' the point corresponding to their sensations.
On day 2 of each experimental trial.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Glasgow

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 26, 2023

Primary Completion (Estimated)

July 31, 2024

Study Completion (Estimated)

September 30, 2024

Study Registration Dates

First Submitted

July 31, 2023

First Submitted That Met QC Criteria

July 31, 2023

First Posted (Actual)

August 8, 2023

Study Record Updates

Last Update Posted (Actual)

August 8, 2023

Last Update Submitted That Met QC Criteria

July 31, 2023

Last Verified

July 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 200210051

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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