Study to Investigate the Efficacy of a Digestive Health Dietary Supplement on Post-meal Bloating in Healthy Participants

A Randomized, Double-blind, Placebo-controlled, Crossover Clinical Trial to Investigate the Safety and Efficacy of a Digestive Health Dietary Supplement on Post-meal Bloating in Healthy Participants

The goal of this crossover clinical trial is to evaluate the efficacy and safety of Bloat Gummies on postprandial bloating and related gastrointestinal discomfort in healthy adults with recurrent bloating. The main question it aims to answer is whether Bloat gummies reduce post-meal bloating, gas, or abdominal pain (stomach) discomfort. Participants will be asked to consume one dose of Bloat or Placebo after 2 test meals and answer questionnaires on gas, bloating and abdominal distension.

Study Overview

• Status: Not yet recruiting
• Conditions: Abdominal Discomfort; Digestive Health; Gas and Bloating
• Intervention / Treatment: Dietary supplement: Bloat Gummies; Dietary supplement: Placebo

• Study Type: Interventional
• Enrollment (Estimated): 100
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • California
    • San Francisco, California, United States, 94109
      • Alethios, Inc.
      • Contact: Alethios; Phone Number: 650-206-8006; Email: support@alethios.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Healthy male and female individuals aged 18-65 years at time of screening.
• Body mass index (BMI) <29.9 kg/m².
• Self-reported recurrent postprandial abdominal bloating and/or distension occurring on average at least 2 days per week over the past 3 months, predominating over other gastrointestinal (GI) symptoms, and in the absence of a diagnosed gastrointestinal disease.
• Females of child-bearing potential must have a negative baseline pregnancy test and agree to use a medically approved method of birth control for the duration of the study.
• Willing to consume a standardized test meal consisting of 2 slices of large cheese pizza from Dominos on each test day.
• Willing to complete online surveys and at-home measurements (waist circumference) at scheduled time points.
• Agrees to maintain current lifestyle habits (diet, physical activity, medications, supplements, and sleep) as much as possible throughout the study.
• Provides voluntary, written, informed consent to participate in the study prior to any study procedures.
• Has reliable access to internet and a smartphone or computer capable of completing electronic surveys and attending virtual check-ins.

Exclusion Criteria:

• Current or past diagnosis of any significant disease of the GI tract, including but not limited to: irritable bowel syndrome (IBS), celiac disease, inflammatory bowel disease (Crohn's disease or ulcerative colitis), functional constipation, gastroesophageal reflux disease (GERD), gastroparesis, or treatment for H. pylori infection or gastric ulcer within the past year.
• Significant or untreated medical and/or psychiatric disorders, including but not limited to: severe unstable diabetes, recent myocardial ischemia or infarction, unstable angina, cancer (except skin basal cell carcinoma completely excised with no chemotherapy or radiation with a follow up that is negative or volunteers with cancer in full remission for more than five years after diagnosis are acceptable), uncontrolled hypertension, renal failure, chronic active hepatitis, acute hepatitis, cirrhosis, Acquired Immunodeficiency Syndrome (AIDS), malignancy, and neurological disorders including epilepsy, recent cerebrovascular disease, or recent traumatic brain injury.
• Current use of digestive enzyme supplements, prebiotics/fibers, probiotics, postbiotics, bloating-targeted supplements, therapeutic iron supplementation (>65 mg elemental iron per dose), prokinetic agents, antacids, H2 blockers, proton pump inhibitors (PPIs), opioids, or loperamide within 14 days prior to the first test meal session; or use of any of the above during the study period.
• Esophageal obstruction or difficulty swallowing.
• Wear dentures.
• Pregnant, breastfeeding, or planning to become pregnant during the study.
• Known allergy, or sensitivity to any ingredient of the study supplement or placebo, including ginger, lemon balm, dandelion, or Bifidobacterium longum-derived products.
• Allergy, sensitivity, intolerance, or dietary restriction preventing consumption of standardized meal ingredients.
• Alcohol use disorder or drug abuse/dependence within the past 6 months (>2 standard drinks/day on average).
• Currently following an extremely restrictive diet or having done so within the past 3 months.
• Participation in another clinical research trial within 30 days prior to randomization.
• Cognitively impaired or unable to provide informed consent.
• Any other condition that, in the Investigator's opinion, may adversely affect the participant's ability to complete the study or its measures, or that may pose significant risk to the participant.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: Triple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Bloat Gummy; Bloat is a gummy that contains the active ingredients ginger root extract, lemon balm extract, dandelion root extract and the postbiotic HTES1, Bifidobacterium longum CECT7347.	Dietary supplement: Bloat Gummies; Participants will be instructed to take one dose (2 gummies) 30 minutes after consumption of the entire standardized meal during 2 test meal sessions, at least 7 days apart.
Placebo Comparator: Placebo Gummy; The placebo is a gummy that looks and tastes like the study gummy, but with no active ingredients.	Dietary supplement: Placebo; Participants will be instructed to take one dose (2 gummies) 30 minutes after consumption of the entire standardized meal during 2 test meal sessions, at least 7 days apart.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Mean change in bloating severity from pre-dose to t = 60 minutes post-dose as, comparing active product vs. placebo.	Bloating severity assessed by Bloating Likert Scale of 0 to 4, with 0 being "no symptoms" and 4 being "severe symptoms."	Evaluated from pre-dose to 60 minutes post-dose

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Mean change in bloating severity from pre-dose to t = 30 minutes post-dose, comparing active product vs placebo.	Bloating severity assessed by Bloating Likert Scale of 0 to 4, with 0 being "no symptoms" and 4 being "severe symptoms."	Evaluated from pre-dose to 30 minutes post-dose
Mean change in abdominal discomfort severity from pre-dose to t = 30 and 60 minutes post-dose, comparing active product vs. placebo.	Abdominal discomfort assessed by abdominal discomfort Likert Scale, of 0 to 4, with 0 being "no symptoms" and 4 being "severe symptoms."	Evaluated from pre-dose to 30 and 60 minutes post-dose.
Mean change in waist circumference from pre-dose to t = 30 and t = 60 minutes post-dose, comparing active product vs. placebo.	Abdominal distension assessed by mean change in waist circumference measurement.	Evaluated from pre-dose to 30 and 60 minutes post-dose.
Mean change in gas severity from pre-dose to t = 30 and 60 minutes post-dose, comparing active product vs. placebo.	Gas severity will be assessed by a Gas Likert scale of 0 to 4, with 0 being "no symptoms" and 4 being "severe symptoms."	Evaluated from pre-dose to 30 and 60 minutes post-dose.
Proportion of participants demonstrating a reduction in waist circumference.	Abdominal distension assessed by mean change in waist circumference measurement.	Evaluated at 30 minutes, 60 minutes or both timepoints post-dose.

Collaborators and Investigators

• Sponsor: Arrae

Study record dates

Study Major Dates

• Study Start (Estimated): April 1, 2026
• Primary Completion (Estimated): June 1, 2026
• Study Completion (Estimated): October 1, 2026

Study Registration Dates

• First Submitted: April 1, 2026
• First Submitted That Met QC Criteria: April 1, 2026
• First Posted (Actual): April 8, 2026

Study Record Updates

• Last Update Posted (Actual): April 13, 2026
• Last Update Submitted That Met QC Criteria: April 7, 2026
• Last Verified: April 1, 2026

More Information

Terms related to this study

• Keywords: intestinal gas; bloating; abdominal distension; Arrae
• Additional Relevant MeSH Terms: Metabolism, Inborn Errors; Genetic Diseases, Inborn; Metabolic Diseases; Connective Tissue Diseases; Carbohydrate Metabolism, Inborn Errors; Lysosomal Storage Diseases; Mucinoses; Mucopolysaccharidoses; Congenital, Hereditary, and Neonatal Diseases and Abnormalities; Nutritional and Metabolic Diseases; Skin and Connective Tissue Diseases; Mucopolysaccharidosis IV
• Other Study ID Numbers: ARR001

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