Fiber bars tested as Gut-Soothing snack for GLP-1 users
NCT ID NCT07012317
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether eating high-fiber snack bars could reduce stomach symptoms like nausea, bloating, and gas in adults taking GLP-1 weight-loss medications (such as Ozempic or Mounjaro). Fifty participants tried three different fiber bars and one low-fiber bar over several weeks, reporting how their gut felt. The goal is to find a simple way to improve comfort while staying on these popular drugs.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- High-fiber snack bars (with inulin, psyllium, bran, or resistant starch)
- What this could lead to
- If it works, this could point toward a simple dietary way to reduce stomach discomfort for people taking popular weight-loss medications.
- What could go wrong
- This is a small, completed trial with only 50 participants, so results may not apply to everyone. Fiber bars can also cause gas or bloating in some people.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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50 people
The number who actually took part.
- Started
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May 2025
- Finished
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Nov 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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25 to 64 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Male or female 25 to 64 years of age, inclusive. There will be approximately equal numbers of men and women. 2. Individual has a self-reported BMI of 18.5 to 39.9 kg/m2, inclusive. 3. Individual has been taking tirzepatide (≥10 mg weekly injection), semaglutide (≥2.0 mg weekly injection), or liraglutide (≥2.4 mg daily injection) for at least 4 weeks and plans to continue to take it throughout the duration of the study. 4. Individual has attained a high school diploma or a General Educational Development (GED) equivalent. 5. Individual has not participated in another research study within 30 days of the screening visit. 6. Individual is willing and able to undergo the scheduled study procedures. 7. Individual understands the study procedures and signs forms documenting informed consent to participate in the study and authorization for release of relevant protected health information to the study Investigator. Exclusion Criteria: 1. Individual has a clinically significant medical condition that, in the opinion of the Investigator, could interfere with the interpretation of the study results. Health conditions may include history or presence of clinically important GI, cardiac, renal, hepatic, endocrine, pulmonary, biliary, pancreatic, or neurological disorders that may affect the participant's ability to adhere to the study protocol and/or affect study outcomes, in the judgment of the Investigator. Clinically important GI conditions included but are not limited to: inflammatory bowel disease, irritable bowel syndrome, gastroparesis, clinically important lactose intolerance. 2. Individual habitually consumes \>8 g fiber per 1000 kcal per day. 3. Individual had a recent (within two weeks of screening) episode of acute GI illness such as nausea, vomiting, or diarrhea. 4. Individual has a history of frequent diarrhea or constipation prior to beginning GLP-1 receptor agonist that, in the opinion of the Investigator, could interfere with the interpretation of the study results. 5. Individual has a history of stomach or GI surgery (e.g., gastric bypass, cholecystectomy) that in the opinion of the Investigator, could interfere with evaluation of the study outcomes. 6. Individual uses medications (over-the counter or prescription) or dietary supplements known to influence gastrointestinal motility including laxatives, enemas, or suppositories; prokinetic drugs; anti-diarrheal agents, anti-spasmotics; fiber supplements; and prebiotic and probiotic supplements (Appendix 6). A 14-day washout phase prior to day 1 is allowed for participants taking any of these products. 7. Daily use of non-steroidal anti-inflammatory drugs (NSAIDs). 8. Individual has a history of cancer in the prior 2 years, except non-melanoma skin cancer or carcinoma in situ of the cervix. 9. Individual has a history of a diagnosed eating disorder (e.g., anorexia or bulimia nervosa). 10. History of any major trauma or major surgical event within 2 months of visit 1. 11. Use of tobacco/nicotine products (e.g., cigarette smoking, vaping, chewing tobacco) within 12 months of visit 1. 12. Use of hemp/marijuana products within 12 months of visit 1. Occasional use (e.g., once or twice a month) within 12 months of visit 1 is allowed but requires at least a 14-day washout prior to day 1 and the participant must be willing to refrain from use during the study. 13. Individual is a female who is pregnant, planning to be pregnant during the study period, lactating, or is of childbearing potential and is unwilling to commit to the use of a medically approved form of contraception throughout the study period. 14. Individual has an allergy, sensitivity, or intolerance to any foods. 15. Individual has extreme dietary habits (e.g., vegan, Atkins diet, etc.). 16. Individual has signs or symptoms of an active infection of clinical significance or has taken antibiotics within 10 days prior to any visit (washout is permitted for re-scheduling of a visit). 17. Individual has a current or recent history (past 12 months of screening) or strong potential for illicit drug or excessive alcohol intake defined as \>14 drinks per week (1 drink = 12 oz beer, 5 oz wine, or 1.5 oz hard liquor). 18. Individual has been exposed to any non-registered drug product within 30 days prior to screening. 19. Individual has a condition the Investigator believes would interfere with his or her ability to provide informed consent, comply with the study protocol, or which might confound the interpretation of the study results or put the person at undue risk.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Excellence Medical and Research
Miami Gardens, Florida, 33169, United States
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Health Awareness
Port Saint Lucie, Florida, 34952, United States
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