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Showing 1–22 of 22 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Food Intolerance Clear all
Completed Not applicable Interventional

Irritable Bowel Syndrome and Food Sensitivity

NCT02186743
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
Personalized Dietary Advice
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 70 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 17, 2017 · Synced Jul 21, 2026, 11:16 AM EDT
Completed Not applicable Interventional

Food as Medicine: A Quasi-Randomized Control Trial of Healthy Foods for Chronic Disease Management

NCT05174078
View directory record Official record
Conditions
Obesity, Hypertension, Pre-diabetes, Type 2 Diabetes
Interventions
Medically-tailored meals, Produce box and recipes
Other
Lead sponsor
Cleveland Clinic Akron General
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Akron, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 21, 2024 · Synced Jul 21, 2026, 11:16 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

NAET Screening for Food Allergy, Sensitivity and Intolerances Using IgE-Specific Antigen Test and NST- NAET®

NCT00275795
View directory record Official record
Conditions
Food Sensitivities, Headache, Backache, Indigestion, Eczema, Acne, Hives and Itching of the Skin
Interventions
NAET Procedures
Procedure
Lead sponsor
Nambudripad's Allergy Research Foundation
Other
Eligibility
2 Years to 78 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Buena Park, California
Source: ClinicalTrials.gov public record
Updated Oct 31, 2006 · Synced Jul 21, 2026, 11:16 AM EDT
Completed Not applicable Interventional

Effect of Food Order on Postprandial Glucose Excursions in Pre-Diabetes

NCT03536364
View directory record Official record
Conditions
Obesity, Pre-Diabetes
Interventions
Food Order, Carbohydrate Last, Vegetables first
Behavioral
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
30 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 23, 2018 · Synced Jul 21, 2026, 11:16 AM EDT
Completed Not applicable Interventional

Effect of Personalized Elimination Diet on Food Sensitivity Related Symptoms

NCT05389683
View directory record Official record
Conditions
Food Sensitivity
Interventions
Elimination Diet
Behavioral
Lead sponsor
Vibrant America Clinical Lab
Industry
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
9
States / cities
Gilbert, Arizona • Scottsdale, Arizona • San Carlos, California + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2024 · Synced Jul 21, 2026, 11:16 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Mobile Application to Create Healthy Food Preparation Habits for Patients With Diabetes and Prediabetes

NCT05726409
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Pre Diabetes
Interventions
Mobile application
Other
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 12, 2023 · Synced Jul 21, 2026, 11:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Dietary Supplement Containing L-Arabinose and Trivalent Patented Food-source of Chromium on Blood Glucose and Insulin

NCT01107431
View directory record Official record
Conditions
Pre-diabetes
Interventions
L-Arabinose and Chromium, Sucrose without dietary Supplement
Dietary Supplement
Lead sponsor
Integrative Health Technologies, Inc.
Network
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated May 12, 2011 · Synced Jul 21, 2026, 11:16 AM EDT
Completed Not applicable Interventional

The Snack Study: The Feasibility of Changing Night-time Food Choices to Improve Glucose Tolerance in Pregnancy

NCT02634593
View directory record Official record
Conditions
Glucose Intolerance, Obesity
Interventions
Low glycemic load snacks
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
16 Years to 45 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 24, 2019 · Synced Jul 21, 2026, 11:16 AM EDT
Completed Not applicable Interventional

Peau o le Vasa: Analysis of the Efficacy and Feasibility of the PILI Lifestyle Program (PLP) + Social Determinants of Health (SDOH) Intervention and Adaptation of SDOH Measures Pilot Study

NCT06471595
View directory record Official record
Conditions
Weight Loss Trial, Cardiometabolic Syndrome, Hypertension, Dyslipidemia, Pre-diabetes, Type 2 Diabetes Mellitus
Interventions
Partnership for Improving Lifestyle Intervention (PILI) Lifestyle Program + Social Determinants of Health (SDOH) Component
Behavioral
Lead sponsor
University of Hawaii
Other
Eligibility
18 Years and older
Enrollment
242 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
4
States / cities
Fayetteville, Arkansas • Springdale, Arkansas • Honolulu, Hawaii
Source: ClinicalTrials.gov public record
Updated Oct 26, 2025 · Synced Jul 21, 2026, 11:16 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Sleep and Metabolism

NCT05775627
View directory record Official record
Conditions
Sleep Deprivation, Obesity, Glucose Intolerance, Weight Gain, Food Selection
Interventions
Sleep Restriction
Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 2, 2024 · Synced Jul 21, 2026, 11:16 AM EDT
Recruiting No phase listed Observational

A Registry for the Food Allergy Community

NCT04653324
View directory record Official record
Conditions
Food Hypersensitivity, Anaphylaxis, Eosinophilic Esophagitis, Food Sensitivity, Food Intolerance, Food Allergy in Infants
Interventions
Not listed
Lead sponsor
Food Allergy Research & Education
Other
Eligibility
Not listed
Enrollment
23,000 participants
Timeline
2017 – 2027
U.S. locations
1
States / cities
McLean, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 11, 2025 · Synced Jul 21, 2026, 11:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

IgG-mediated Food Test for Weight Loss

NCT01592071
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Replace reactive foods with non-reactive foods
Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Mar 30, 2014 · Synced Jul 21, 2026, 11:16 AM EDT
Completed No phase listed Observational

Fecal Calprotectin Collection Protocol

NCT03143517
View directory record Official record
Conditions
Inflammatory Bowel Diseases, Irritable Bowel Syndrome, Ulcerative Colitis, Crohn Disease, Indeterminate Colitis, Chronic Diarrhea, Celiac Disease, Diverticulitis, Abdominal Pain, Distension, Weight Loss, Food Intolerance, Constipation
Interventions
Stool collection
Diagnostic Test
Lead sponsor
DiaSorin Inc.
Industry
Eligibility
4 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
13
States / cities
Dothan, Alabama • Little Rock, Arkansas • Mission Hills, California + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 6, 2019 · Synced Jul 21, 2026, 11:16 AM EDT
Recruiting Not applicable Interventional

The GRoceries Aimed at Increasing Nutrition Study

NCT07167004
View directory record Official record
Conditions
Type 2 Diabetes, Type II Diabetes Mellitus, Type II Diabetes, Pre-diabetes, Pre-diabetic, Pre-diabetic State, Type 2 Diabetes Mellitus (T2DM), Type 2 Diabetes Mellitus, Type 2 Diabetes (T2DM)
Interventions
Marketing Nudges Only, Marketing Nudges + Dynamically Adapted Financial Incentives
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
45 Years to 70 Years
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Jul 21, 2026, 11:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Athlete Whey Protein Sensitivity: Prevalence and Performance

NCT05482997
View directory record Official record
Conditions
Food Intolerance
Interventions
Whey Protein Concentrate, Pea Protein Isolate, Rice Protein Concentrate, Hemp Protein
Dietary Supplement
Lead sponsor
University of the Incarnate Word
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 4, 2024 · Synced Jul 21, 2026, 11:16 AM EDT
Recruiting Not applicable Interventional

Peanuts for Cardiometabolic, Brain, and Intestinal Health

NCT06867198
View directory record Official record
Conditions
Prediabetes, Prediabetes (Insulin Resistance, Impaired Glucose Tolerance), Cognition, Microvascular Function, Gut Microbiota, Endothelial Function (Reactive Hyperemia), Arterial Stiffness, Blood Pressure, Adult
Interventions
Peanuts
Dietary Supplement
Lead sponsor
Georgia State University
Other
Eligibility
20 Years to 59 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Jul 21, 2026, 11:16 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Unhide® Project: A Digital Health Platform to Collect Lifestyle Data for Brain Inflammation Research

NCT04806620
View directory record Official record
Conditions
Post-Acute COVID-19 Syndrome, ME/CFS, Rheumatic Arthritis, Juvenile Rheumatoid Arthritis (JRA), Psoriatic Arthritis (PsA), Ankylosing Spondylitis (AS), Autoimmune Encephalitis, Celiac Disease, Celiac Disease in Children, Chronic Lyme Disease, Post-treatment Lyme Disease Syndrome, Crohn's Disease, Dysautonomia, Anorexia Nervosa, Bulimia Nervosa, ARFID, Avoidant / Restrictive Food Intake Disorder, Ehlers Danlos Syndrome, Endometriosis, Fibromyalgia (FM), Long COVID, Lupus, Migraines, Mast Cell Activation Syndrome, Multiple Sclerosis, Myalgic Encephalomyelitis (ME), Myasthenia Gravis, Generalized, Myasthenia Gravis in Children, Narcolepsy, Obsessive Compulsive Disorder (OCD), PANDAS, Pediatric Acute-onset Neuropsychiatric Syndrome (PANS), POTS - Postural Orthostatic Tachycardia Syndrome, General Anxiety Disorder, Social Anxiety Disorder, PTSD - Post Traumatic Stress Disorder, Psoriasis, Traumatic Brain Injury, Tourette's Syndrome, Inflammatory Bowel Disease (IBD), Autoimmune Diseases, Neurological Diseases or Conditions, Psychiatric Disorder, Sjogren's Syndrome, Ulcerative Colitis and Crohn's Disease
Interventions
Not listed
Lead sponsor
Brain Inflammation Collaborative
Other
Eligibility
2 Years and older
Enrollment
10,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2030
U.S. locations
1
States / cities
Delafield, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Jul 21, 2026, 11:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Oral Fructanase Administration on Gastrointestinal Symptoms After Inulin Challenge in Healthy Adults

NCT06628869
View directory record Official record
Conditions
Digestive Health, Gastrointestinal Health, FODMAP Intolerance, Food Sensitivity
Interventions
Fructanase, Maltodextrin placebo
Dietary Supplement
Lead sponsor
BIO-CAT, Inc.
Industry
Eligibility
20 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 9, 2025 · Synced Jul 21, 2026, 11:16 AM EDT
Withdrawn Not applicable Interventional

Designer Functional Foods on Parameters of Metabolic and Vascular in Prediabetes

NCT02400450
View directory record Official record
Conditions
Pre-Diabetes
Interventions
Functional Ingredient Group, Control Ingredient Group
Dietary Supplement
Lead sponsor
University of Manitoba
Other
Eligibility
21 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 22, 2017 · Synced Jul 21, 2026, 11:16 AM EDT
Completed Not applicable Interventional

Study of the Food Order Behavioral Intervention in Prediabetes

NCT03896360
View directory record Official record
Conditions
Pre Diabetes, Obesity
Interventions
Food order behavioral intervention plus standard care, Standard Care
Behavioral
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
21 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 2, 2022 · Synced Jul 21, 2026, 11:16 AM EDT
Recruiting Not applicable Interventional

Pilot Study of "Bottarga" Supplementation: A Little-known, Sustainable "Blue" Food

NCT06988462
View directory record Official record
Conditions
Prediabetes, Diabetes, High Cholesterol/Hyperlipidemia, Obesity & Overweight, Triglycerides, HDL Cholesterol
Interventions
Bottarga, Comparator
Other
Lead sponsor
Cambridge Health Alliance
Other
Eligibility
18 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Sommerville, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Jul 21, 2026, 11:16 AM EDT
Recruiting Not applicable Interventional

Wild Blueberries for Gut, Brain, and Cardiometabolic Health in Prediabetes

NCT06735651
View directory record Official record
Conditions
Prediabetes (Insulin Resistance, Impaired Glucose Tolerance), Female, Adult, Endothelial Function (Reactive Hyperemia), Arterial Stiffness, Cognition, Oxidative Stress, Gut Microbiota, Overweight, Inflammation, Microvascular Function, Body Composition
Interventions
Wild Blueberry, Placebo
Dietary Supplement
Lead sponsor
Georgia State University
Other
Eligibility
20 Years to 65 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Jul 21, 2026, 11:16 AM EDT