CClinicalTrials.gg
Not yet recruitingNCT07131904Updated Aug 20, 2025

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

An interventional study of non-alcoholic, fiber-enriched beer (FEB) and conventional, non-alcoholic beer in Blood Glucose Concentration, Glycemic Index and Dietary Fiber, sponsored by David Faeh. Not yet recruiting. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-08-20.

Sponsored by David Faeh · Not applicable, Interventional, and Basic science

From the registry’s dates

  • Primary completion was expected by Sep 2025, 1 year ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
25
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

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.

02

Conditions studied

  • Blood Glucose Concentration
  • Glycemic Index
  • Dietary Fiber
  • Non-alcoholic Beer

Keywords

  • fiber-enriched beer
  • functional food
  • continuous glucose monitoring
  • postprandial glucose response
03

In context

Lead sponsor

This is the only study on the registry with David Faeh as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

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

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
05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
25 participants (estimated)

Study arms

  • Experimental
    non-alcoholic, fiber-enriched beer (FEB)

    Other: non-alcoholic, fiber-enriched beer (FEB)

  • Active comparator
    conventional, non-alcoholic beer

    Other: conventional, non-alcoholic beer

  • Active comparator
    glucose solution

    Other: glucose solution

Interventions

  • Othernon-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).

  • Otherconventional, 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).

  • Otherglucose 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).

06

What researchers measure

Primary outcomes

  1. Incremental Area Under the Curve (iAUC) for Postprandial Blood Glucose

    Incremental area under the curve for interstitial glucose concentration measured over 120 minutes after beverage consumption. Measurements obtained via continuous glucose monitoring (FreeStyle Libre 3) in a randomized crossover design.

    Time frame: 0-120 minutes after beverage consumption on each test day

Secondary outcomes

  1. Glycemic Index of Fiber-Enriched Beer (FEB)

    Glycemic index calculated using the incremental area under the curve for blood glucose after consumption of FEB, compared to glucose solution, according to ISO 26642:2010 methodology.

    Time frame: 0-120 minutes after beverage consumption on each test day

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 20, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07131904
Lead sponsor
David Faeh
Responsible party
David Faeh (Prof. Dr. med. David Fäh, Bern University of Applied Sciences) — Sponsor-investigator
First posted
Aug 20, 2025
Start date
Aug 12, 2025 (estimated)
Primary completion
Sep 22, 2025 (estimated)
Completion
Oct 15, 2025 (estimated)
Last update
Aug 20, 2025

Study contacts

David Fäh, Prof.Dr.med
Contact
david.faeh@bfh.ch
+41 31 848 45 51
Neeser Lorena, Bsc
Contact
lorena.neeser@bfh.ch
+41 77 423 18 45

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion