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ClinicalTrials.gov public records Last synced Sep 6, 2026, 7:59 AM EDT

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Showing 1–24 of 30 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Overweight and Obesity
Interventions
Fructooligosaccharides (FOS), Exercise, Placebo
Dietary Supplement · Behavioral
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
20 Years to 45 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Urbana, Illinois
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Gut Butyrate and Blood Pressure in African Americans

NCT04415333
Conditions
Hypertension
Interventions
Sodium Butyrate 5 mmol, Sodium Butyrate 80 mmol
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
30 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Greensboro, North Carolina
Conditions
Type2diabetes, Heart Failure With Preserved Ejection Fraction
Interventions
Potato Starch
Dietary Supplement
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
Obesity, Diabetes
Interventions
Diet and physical activity monitoring
Behavioral
Lead sponsor
Loyola University
Other
Eligibility
18 Years to 50 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
1
States / cities
Maywood, Illinois
Recruiting Not applicable Interventional Accepts healthy volunteers

The Precision Nutrition New York Study

NCT06777498
Conditions
Body Composition Changes, Body Weight Changes
Interventions
Whole Grain Intervention then fruits and vegetables, Fruit and Vegetable Intervention and then whole grains
Other
Lead sponsor
Cornell University
Other
Eligibility
21 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Ithaca, New York
Conditions
Bariatric Surgery Candidate
Interventions
Potato starch
Dietary Supplement
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Lebanon, New Hampshire
Conditions
Toxicity, Radiation Toxicity
Interventions
Short Chain Fatty Acid, Tapioca Flour
Drug
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2031
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
Rheumatoid Arthritis
Interventions
Short Chain Fatty Acids (SCFA) Dietary Supplement
Dietary Supplement
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
New York, New York
Completed Not applicable Interventional Accepts healthy volunteers

Resistant Starch Blend Gastrointestinal Impact

NCT03983772
Conditions
Quality of Life, Health, Subjective
Interventions
RS blend, Placebo
Dietary Supplement · Other
Lead sponsor
Metagenics, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Gig Harbor, Washington
Conditions
Gastrointestinal Symptoms
Interventions
GlutenShield, Placebo
Dietary Supplement · Other
Lead sponsor
East Tennessee State University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Johnson City, Tennessee
Completed Not applicable Interventional Accepts healthy volunteers

Fiber Effectively Educates & Directs the Microbiome Study

NCT06395324
Conditions
Microbial Colonization
Interventions
High arabinose diet
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 50 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Davis, California
Completed Phase 2 Interventional Accepts healthy volunteers

Acetate and Age-associated Arterial Dysfunction

NCT05424263
Conditions
Aging, Vascular Stiffness, Vascular Dilation
Interventions
Calcium Acetate Oral Solution, Calcium Carbonate Oral Suspension
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
50 Years and older
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Recruiting Not applicable Interventional Accepts healthy volunteers

Dietary Fiber Effects on the Microbiome and Satiety

NCT04611217
Conditions
Dietary Fiber
Interventions
Dietary fiber: 10-25g, Dietary fiber: 5g
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
20 Years to 55 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Columbia, Missouri
Completed Not applicable Interventional Accepts healthy volunteers

Short Chain Fatty Acid Metabolism in COPD

NCT03327181
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
short chain fatty acid tracers
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
45 Years to 100 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
College Station, Texas
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Soluble Arabinoxylan and Rice Bran Fiber on the Gut Microbiome in Healthy Adults

NCT06873204
Conditions
Healthy
Interventions
Soluble Arabinoxylan, Rice Bran, Maltodextrin (Placebo)
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 45 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
West Lafayette, Indiana
Recruiting Not applicable Interventional Accepts healthy volunteers

Irritable Bowel Syndrome and Control Volunteers: Diet Challenge

NCT06668922
Conditions
Irritable Bowel Syndrome (IBS)
Interventions
Inulin
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 75 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2030
U.S. locations
1
States / cities
Los Angeles, California
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

Brain Small Chain Fatty Acid Metabolism in Parkinson Disease: Tributyrin Supplementation

NCT05446168
Conditions
Parkinson Disease
Interventions
tributyrin
Drug
Lead sponsor
Nicolaas Bohnen, MD, PhD
Other
Eligibility
45 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
Parkinson Disease, Parkinson Disease Dementia
Interventions
Tributyrin, Placebo
Drug
Lead sponsor
Prabesh Kanel
Other
Eligibility
45 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Short-chain Fatty Acids on Aerobic Endurance

NCT06054607
Conditions
Aerobic Endurance, Metabolism
Interventions
High-amylose maize starch+acetate/butyrate, Low-amylose maize starch
Dietary Supplement · Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
17 Years to 39 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Natick, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers

Fiber Metabolism in Chronic Obstructive Pulmonary Disease

NCT04459156
Conditions
Chronic Obstructive Pulmonary Disease, Aging
Interventions
Fiber Inulin, Placebo Maltodextrin
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
College Station, Texas
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Irritable Bowel Syndrome and Control Volunteers: Diet Challenge

NCT03983434
Conditions
IBS - Irritable Bowel Syndrome
Interventions
Inulin
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Healthy Volunteer Short Chain Fatty Acid Study

NCT05254340
Conditions
Healthy
Interventions
Inulin
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 75 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Conditions
Rheumatoid Arthritis
Interventions
Butyrate
Dietary Supplement
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
New York, New York
Completed No phase listed Observational Accepts healthy volunteers

Fecal Metabolome and the Intestinal Microbiota in Irritable Bowel Syndrome

NCT02981888
Conditions
IBS
Interventions
X-Ray
Radiation
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2023
U.S. locations
1
States / cities
Indianapolis, Indiana