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Effect of Prebiotic Sodas on Postprandial Levels of GLP-1, PYY, Transit Time and Satiety Levels: A Pilot Study

Effect of 3 Different Prebiotic Sodas on Postprandial Levels of GLP-1, PYY, Transit Time and Satiety Levels: An Acute, Randomized Controlled Pilot Study in Healthy Participants

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07362563
Enrollment
15
Registered
2026-01-23
Start date
2026-02-02
Completion date
2026-05-16
Last updated
2026-07-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Satiety in Healthy Volunteers

Brief summary

The main objective of this study is to evaluate the acute effects of prebiotic sodas on postprandial levels of glucagon-like peptide-1 (GLP-1), peptide YY (PYY), gastric emptying, and satiety levels in healthy adults.

Detailed description

The primary aim of this clinical trial is to evaluate the effects of single-dose prebiotic sodas on on postprandial levels of GLP-1. Participants (n=15) will be healthy males and healthy, non-pregnant, non-lactating females aged 18-60 years. Participants will consume a single dose of 3 different prebiotic sodas (6 - 9 g dietary fiber and 4 g total sugar per can) and one control soda (0 g dietary fiber and 4 g total sugar per can) in a randomized, crossover design over a period of 4-12 weeks with an interval of at least 1 week and at most 3 weeks between visits. Secondary outcomes will include evaluating the effects of single-dose consumption of the control and prebiotic sodas on postprandial PYY, gastric emptying, and satiety levels.

Interventions

OTHERControl Soda

Participants will consume one 12 oz can of a control soda that contains 0 g dietary fiber and 4 g total sugar.

OTHERPrebiotic Soda - Shelf Stable

Participants will consume one 12 oz can of a shelf stable prebiotic soda that contains 6 g dietary fiber and 4 g total sugar.

OTHERPrebiotic Soda - Refrigerated

Participants will consume one 12 oz can of a shelf stable prebiotic soda that contains 9 g dietary fiber and 4 g total sugar.

OTHERPrebiotic Soda - Shelf Stable + Functional Ingredient

Participants will consume one 12 oz can of a shelf stable prebiotic soda that contains 6 g dietary fiber, 4 g total sugar, and an added functional ingredient.

Sponsors

Olipop, PBC
Lead SponsorINDUSTRY
INQUIS Clinical Research
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

* Adults aged 18-60 years, inclusive. * BMI between 18.0 and 30.0 kg/m2. * Stable weight in the last 3 months (+/-5kg). * Willing to abstain from unusual strenuous exercise, consuming alcoholic drinks and from taking fiber supplements for 24 hours before study days. * Willing to refrain from smoking tobacco or e-cigarettes, and using marijuana in any form for 12h before and during study visits. * Understanding the study procedures and willing to provide informed consent to participate in the study and authorization to release relevant protected health information to the study investigator. * Subjects must be eligible to receive income in Canada and be covered by a health insurance plan such as Ontario Health Insurance Plan (OHIP).

Exclusion criteria

* Self-reported pregnant or breastfeeding women. * Subjects with a history of severe food allergies or an allergy to acetaminophen. * Known history of diabetes, any gastrointestinal disorder that alters the absorption of nutrients, liver disease, or the presence of any health condition, illness or drug use that increases risk to the subject or to others or may affect the results, as judged by the Qualified Investigator (QI). * Subjects who are currently or in the last 2 months have been on oral or injectable GLP-1 receptor agonist (RA) medications. * Subjects who consume more than 14 alcoholic drinks per week, or more than 5 alcoholic drinks on any one occasion. * Subjects who have been on antibiotic therapy in the last 2 months. * Subjects taking the blood thinning drug warfarin. * Subjects who are habitual users of the following supplements in the past 30 days: berberine, curcumin, cinnamon, resveratrol, and gardenia. * Subjects which have undergone major surgery in the last 3 months. * Unwillingness or inability to comply with experimental procedures and to follow Inquis safety guidelines. * Subject is currently participating or recently (within 30 days of screening) participated in a clinical trial involving long-term exposure (greater than 24 hours) to an investigational drug, nutritional supplement, or lifestyle modification.

Design outcomes

Primary

MeasureTime frameDescription
Blood GLP-1 iAUCFor 2 hours post interventionIncremental area under the curve (iAUC) for GLP-1 from immediately prior to test-product consumption (t=0) to t=120 min following test-product consumption.

Secondary

MeasureTime frameDescription
Blood PYY iAUCFor 2 hours post interventionIncremental area under the curve (iAUC) for PYY from immediately prior to test-product consumption (t=0) to t=120 min following test-product consumption.
Gastric Emptying Rate/Transit Time via AcetaminophenOral dose of acetaminophen with blood samples taken for 2 hours post interventionIncremental area under the curve (iAUC) for acetaminophen from immediately prior to test-product consumption (t=0) to t=120 min following test-product consumption.
Change in Perceived Satiety LevelsFor 2 hours post interventionThe change in perceived satiety levels measured using the Motivation to Eat visual analogue scale (VAS) from immediately prior to test-product consumption (t=0) to t=120 min following test-product consumption.

Countries

Canada

Contacts

STUDY_DIRECTORJanice Campbell

INQUIS Clinical Research

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 16, 2026