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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Diet Therapy Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Adding Raisins to the American Diet on Fecal Microbiota Composition

NCT02713165
View directory record Official record
Conditions
Inflammation
Interventions
Raisins
Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 10, 2017 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Phase 1 Interventional

Ketogenic Diet and Chemotherapy in Affecting Recurrence in Patients With Stage IV Breast Cancer

NCT03535701
View directory record Official record
Conditions
Stage IV Breast Cancer AJCC v6 and v7
Interventions
Dietary Intervention, Laboratory Biomarker Analysis, Paclitaxel, Quality-of-Life Assessment, Questionnaire Administration
Dietary Supplement · Other · Drug
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 7, 2025 · Synced Sep 24, 2026, 1:22 PM EDT
Withdrawn Not applicable Interventional

Refractory Eustachian Tube Dysfunction: Are the Symptoms Related to Endolymphatic Hydrops

NCT01661777
View directory record Official record
Conditions
Eustachian Tube Dysfunction, Endolymphatic Hydrops
Interventions
Nasal steroid, Myringotomy tube placement, Diuretic, Antihistamine, Low salt diet
Drug · Procedure · Behavioral
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 70 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 28, 2014 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional

Microbiota-targeted Diet for Pediatric UC

NCT02922881
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Ulcerative Colitis Diet (UCD)
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
8 Years to 19 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 21, 2021 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Feasibility Trial of a Mediterranean Diet Pattern to Prevent Cognitive Decline

NCT02921672
View directory record Official record
Conditions
Alzheimer's Disease, Cognitive Impairment
Interventions
Mediterranean Diet
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
65 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 5, 2019 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Time Restricted Feeding and Metabolic Rhythms

NCT04009239
View directory record Official record
Conditions
Obesity, Diabetes
Interventions
Time Restricted Feeding
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
20 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 13, 2022 · Synced Sep 24, 2026, 1:22 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

The Healthy Diet and Lifestyle Study II

NCT05132686
View directory record Official record
Conditions
Intra-Abdominal Fat
Interventions
IER+MED, MED/DER
Behavioral
Lead sponsor
University of Hawaii
Other
Eligibility
35 Years to 69 Years
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Honolulu, Hawaii
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional

Simplified Diet Approach in Phenylketonuria

NCT02555579
View directory record Official record
Conditions
Phenylketonuria
Interventions
Dietary Protein Counting and Free Fruits and Vegetables
Behavioral
Lead sponsor
University of Nebraska
Other
Eligibility
13 Years to 65 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
4
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional

Dietary Intervention and Gastrointestinal Function in Patients With Parkinson's Disease

NCT03851861
View directory record Official record
Conditions
Parkinson Disease
Interventions
Mediterranean Diet
Other
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 85 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 3, 2021 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional

Effect of a High Protein Diet on the 24-hour Profile of Ghrelin, GH (Growth Hormone) and IGF-1 (Insulin-like Growth Factor-1)

NCT00108225
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
LoBag Diet - test phase, LoBAG Diet - control phase
Other
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
55 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 30, 2014 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Low-Carbohydrate Dietary Pattern on Glycemic Outcomes Trial

NCT03675360
View directory record Official record
Conditions
Diabetes, PreDiabetes, Metabolic Disease, Hyperglycemia, Diet Modification, Glucose Intolerance, Glucose Metabolism Disorders (Including Diabetes Mellitus), Endocrine System Diseases
Interventions
Low-Carbohydrate Diet
Behavioral
Lead sponsor
Tulane University School of Public Health and Tropical Medicine
Other
Eligibility
40 Years to 70 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Feb 28, 2023 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Phase 3 Interventional Results available

A Phase 3 Study of BMS-477118 in Combination With Metformin in Subjects With Type 2 Diabetes Who Are Not Controlled With Diet and Exercise

NCT00327015
View directory record Official record
Conditions
Diabetes
Interventions
Saxagliptin, Metformin, Placebo, pioglitazone
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 77 Years
Enrollment
1,306 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
47
States / cities
Concord, California • Encinitas, California • Orange, California + 38 more
Source: ClinicalTrials.gov public record
Updated Apr 28, 2015 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of High Fruit, Vegetable, and Dairy Intake on Plasma Lipids and Blood Pressure in Healthy Individuals

NCT01404897
View directory record Official record
Conditions
Cardiovascular Disease, Dyslipidemia, Blood Pressure
Interventions
Dietary Intervention
Other
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
22 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Mar 25, 2015 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Phase 3 Interventional

Effect of Retatrutide Compared With Placebo in Adult Participants With Type 2 Diabetes and Inadequate Glycemic Control With Diet and Exercise Alone (TRANSCEND-T2D-1)

NCT06354660
View directory record Official record
Conditions
Diabetes Type 2
Interventions
Retatrutide, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
537 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
29
States / cities
Scottsdale, Arizona • Tucson, Arizona • Canoga Park, California + 25 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Fiber Snack Foods on Dietary Intake in Healthy Adults

NCT01478659
View directory record Official record
Conditions
Fructooligosaccharide
Interventions
Control study food with no added fiber, Study food with added fiber
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 50 Years
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 12, 2012 · Synced Sep 24, 2026, 1:22 PM EDT
Completed No phase listed Observational

A Prospective Study of Diet and Cancer in Members of the American Association of Retired Persons

NCT00340015
View directory record Official record
Conditions
Death, Cancer
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
50 Years to 71 Years
Enrollment
566,401 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 4, 2022 · Synced Sep 24, 2026, 1:22 PM EDT
Recruiting Not applicable Interventional

Diet and Exercise Solutions to Postprandial Hypotension

NCT06882460
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Low glycemic load, Electrical stimulation exercise, High glycemic load diet
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 24, 2026, 1:22 PM EDT
Active, not recruiting Not applicable Interventional

Controlled Low Calorie Diet in Reducing Side Effects and Increasing Response to Chemotherapy in Patients With Breast or Prostate Cancer

NCT01802346
View directory record Official record
Conditions
Breast Cancer, Hormone-resistant Prostate Cancer, Recurrent Prostate Cancer
Interventions
dietary intervention, nutritional support, laboratory biomarker analysis
Dietary Supplement · Procedure · Other
Lead sponsor
University of Southern California
Other
Eligibility
19 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
3
States / cities
Los Angeles, California • Newport Beach, California • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Optimum Omega-3 (003) Diet Study

NCT01642368
View directory record Official record
Conditions
Stress, Physiological
Interventions
The Optimum Omega-3 Fatty Acid Feeding Study
Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 40 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Mar 19, 2019 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Parents as the Agent of Change for Childhood Obesity

NCT01197443
View directory record Official record
Conditions
Obesity
Interventions
Parent-only Group, Parent + Child Group
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
8 Years to 12 Years
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Dec 1, 2015 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Not applicable Interventional

A Carbohydrate-restricted Diet to Reverse Fatty Liver in Adolescents With Obesity

NCT02787668
View directory record Official record
Conditions
Non-alcoholic Fatty Liver Disease, Childhood Obesity, Insulin Resistance
Interventions
Carbohydrate-restricted diet, Control, low-fat diet
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
9 Years to 17 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Feb 20, 2022 · Synced Sep 24, 2026, 1:22 PM EDT
Enrolling by invitation Not applicable Interventional

Ketogenic Diet in Rheumatoid Arthritis (RA)

NCT05799768
View directory record Official record
Conditions
Rheumatoid Arthritis, Inflammation, Obesity, Ketogenic Dieting, Metabolic Syndrome
Interventions
Ketogenic diet
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Feb 6, 2024 · Synced Sep 24, 2026, 1:22 PM EDT
Completed No phase listed Observational

Diet and Activity in Cerebral Palsy

NCT02175108
View directory record Official record
Conditions
Cerebral Palsy
Interventions
Not listed
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
16 Years to 89 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 17, 2017 · Synced Sep 24, 2026, 1:22 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Diet and Exercise Plus Metformin to Treat Frailty in Obese Seniors

NCT04221750
View directory record Official record
Conditions
Frailty, Sarcopenic Obesity, Aging
Interventions
Lifestyle therapy, Metformin Hydrochloride, Placebo, Healthy Lifestyle
Behavioral · Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
65 Years to 85 Years
Enrollment
114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 13, 2026 · Synced Sep 24, 2026, 1:22 PM EDT