Non-alcoholic, Fiber-enriched Beer and Its Effect on Blood Glucose Concentration

NCT ID: NCT07131904

Last Updated: 2025-08-20

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

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

25 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-12

Study Completion Date

2025-10-15

Brief Summary

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This study examines how various non-alcoholic beverages affect blood sugar levels.

The beverages are a non-alcoholic, fiber-enriched beer, a conventional non-alcoholic beer, and a sugar solution. Participants drink one of these beverages on different days. Afterwards, a sensor on the upper arm is used to measure the sugar content in the body fluid under the skin over a period of two hours.

The aim is to find out how much blood sugar concentration rises after drinking. This will be used to check whether the non-alcoholic, fiber-enriched beer has a more favorable effect on sugar metabolism than conventional beverages. Participation is voluntary, and the data will be treated confidentially.

Detailed Description

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Conditions

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Blood Glucose Concentration Glycemic Index Dietary Fiber Non-alcoholic Beer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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non-alcoholic, fiber-enriched beer (FEB)

Group Type EXPERIMENTAL

non-alcoholic, fiber-enriched beer (FEB)

Intervention Type OTHER

500 ml FEB consumed once during a test day in a randomized crossover design. Postprandial blood glucose is monitored for 120 minutes using a continuous glucose monitor (FreeStyle Libre 3).

conventional, non-alcoholic beer

Group Type ACTIVE_COMPARATOR

conventional, non-alcoholic beer

Intervention Type OTHER

500 ml conventional non-alcoholic beer consumed once during a test day in a randomized crossover design. Postprandial blood glucose is monitored for 120 minutes using a continuous glucose monitor (FreeStyle Libre 3).

glucose solution

Group Type ACTIVE_COMPARATOR

glucose solution

Intervention Type OTHER

Glucose solution containing 12.5 g glucose in 500 ml water, consumed once during a test day in a randomized crossover design. Postprandial blood glucose is monitored for 120 minutes using a continuous glucose monitor (FreeStyle Libre 3).

Interventions

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non-alcoholic, fiber-enriched beer (FEB)

500 ml FEB consumed once during a test day in a randomized crossover design. Postprandial blood glucose is monitored for 120 minutes using a continuous glucose monitor (FreeStyle Libre 3).

Intervention Type OTHER

conventional, non-alcoholic beer

500 ml conventional non-alcoholic beer consumed once during a test day in a randomized crossover design. Postprandial blood glucose is monitored for 120 minutes using a continuous glucose monitor (FreeStyle Libre 3).

Intervention Type OTHER

glucose solution

Glucose solution containing 12.5 g glucose in 500 ml water, consumed once during a test day in a randomized crossover design. Postprandial blood glucose is monitored for 120 minutes using a continuous glucose monitor (FreeStyle Libre 3).

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Healthy adults aged 18-60 years
* Body mass index (BMI) between 18.5 and 29.9 kg/m²
* Signed informed consent

Exclusion Criteria

* Diagnosed diabetes
* Gastrointestinal diseases
* Hormonal or other metabolic diseases
* Allergies or intolerances to beer ingredients
* Professional sports (\>10 hours/week of intense exercise)
* Special diets (e.g., low-carb, intermittent fasting)
* Sleep disorders or inability to maintain regular sleep (e.g., shift work)
* Pregnancy or breastfeeding
* Smoking
* Inability to speak German or English
* Problems with alcohol, drug, or medication abuse
* Inability to sign informed consent
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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David Faeh

OTHER

Sponsor Role lead

Responsible Party

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David Faeh

Prof. Dr. med. David Fäh

Responsibility Role SPONSOR_INVESTIGATOR

Central Contacts

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David Fäh, Prof.Dr.med

Role: CONTACT

+41 31 848 45 51

Neeser Lorena, Bsc

Role: CONTACT

+41 77 423 18 45

Other Identifiers

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Fiberbeer trial

Identifier Type: -

Identifier Source: org_study_id

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