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Showing 1–24 of 46 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Unprocessed diet Clear all
Not listed Not applicable Interventional

SCD vs. Mediterranean Diet Therapy in Ulcerative Colitis

NCT04398550
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Specific Carbohydrate Diet, Mediterranean Diet
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 30, 2022 · Synced Sep 6, 2026, 2:21 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Ketone Conferred Resiliency Against Sleep Restriction With Nutritional Intervention.

NCT06075914
View directory record Official record
Conditions
Sleep Deprivation, Nutritional Intervention
Interventions
Ketogenic Intervention, Mediterranean Intervention, Placebo, Ketone Ester
Other · Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 40 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ultra-Processed Foods and Executive Function

NCT06518863
View directory record Official record
Conditions
Diet Habit
Interventions
Education
Behavioral
Lead sponsor
Oklahoma State University
Other
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Stillwater, Oklahoma
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Terminated Phase 2 Interventional

Outpatient Neutropenic Diet Study

NCT00947648
View directory record Official record
Conditions
Leukemia, Neutropenia
Interventions
Raw Fruits & Vegetables, Cooked Foods
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 12, 2014 · Synced Sep 6, 2026, 2:21 AM EDT
Not yet recruiting Not applicable Interventional

EXERT-BC Protein: Protein Supplementation to Improve Body Composition After Treatment for Breast Cancer

NCT07704476
View directory record Official record
Conditions
Cancer, Breast Cancer
Interventions
Whey protein (60 grams), No protein
Dietary Supplement · Other
Lead sponsor
Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
Other
Eligibility
20 Years to 89 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional

Resistant Starch on Glucose and Insulin Sensitivity in Individuals With Type 2 Diabetes

NCT00691249
View directory record Official record
Conditions
Hyperglycemia
Interventions
Resistant Starch Type 4-Raw, Resistant Starch Type 4-Cooked, Shredded Wheat
Dietary Supplement
Lead sponsor
Kansas State University
Other
Eligibility
Not listed
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Manhattan, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 1, 2009 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Cardiometabolic Effects of Pecans as a Snack

NCT05071807
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Pecans, Usual Care
Drug · Other
Lead sponsor
Penn State University
Other
Eligibility
25 Years to 70 Years
Enrollment
138 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 24, 2025 · Synced Sep 6, 2026, 2:21 AM EDT
Terminated Not applicable Interventional

Nutrition Support to Improve Outcomes in Patients With Unresectable Pancreatic Cancer

NCT02681601
View directory record Official record
Conditions
Cancer of Pancreas
Interventions
Nutrawell Powder, Diet Only, OmegaRich fish oil supplement
Dietary Supplement · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years to 75 Years · Male only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 2, 2022 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Slowly Digestible Carbohydrates and the Ileal Brake

NCT03630445
View directory record Official record
Conditions
Obesity, Diabetes Mellitus, Type 2, Appetitive Behavior
Interventions
Isomaltooligosaccharides (IMOs), Xtend® sucromalt, Combination of IMOs and Xtend® sucromalt, Raw corn starch, Maltodextrin
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 9, 2021 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional

Effects of a 4-week Raw, Plant-based Diet on Anthropometric and Cardiovascular Risk Factors

NCT03134235
View directory record Official record
Conditions
Hypertension, Elevated Cholesterol, Overweight and Obesity
Interventions
Dietary Intervention
Other
Lead sponsor
Texas Woman's University
Other
Eligibility
18 Years to 75 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 22, 2017 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional

The Effectiveness of the Neutropenic Diet in Pediatric Oncology Patients

NCT00726934
View directory record Official record
Conditions
Acute Lymphoblastic Leukemia, Acute Myelogenous Leukemia, Non-Hodgkins Lymphoma, Sarcoma, Neuroblastoma
Interventions
Food Safety Guidelines, Neutropenic Diet
Other
Lead sponsor
Indiana University
Other
Eligibility
1 Year to 30 Years
Enrollment
149 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
6
States / cities
San Diego, California • Indianapolis, Indiana • Brooklyn, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2017 · Synced Sep 6, 2026, 2:21 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Ultra-processed Food Consumption and Health Pilot Study

NCT07318064
View directory record Official record
Conditions
Obesity & Overweight
Interventions
Purple Diet, Ultra-processed diet
Behavioral
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 50 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Ability of Pecan Consumption to Improve Vascular Function and Reduce Chronic Disease Risk in Aging Adults

NCT04385537
View directory record Official record
Conditions
Aging
Interventions
PECAN
Dietary Supplement
Lead sponsor
University of Georgia
Other
Eligibility
50 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated May 23, 2022 · Synced Sep 6, 2026, 2:21 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Impact of Lean Pork on Endothelial Function in Perimenopause

NCT06976112
View directory record Official record
Conditions
Cardiovascular Outcome, Overweight and Obese Women, Perimenopausal Women, Vasomotor Symptoms (VMS)
Interventions
Pork Diet, Plant Diet
Behavioral
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
40 Years to 55 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Nov 27, 2025 · Synced Sep 6, 2026, 2:21 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Isocaloric Ultra Processed Versus Unprocessed Diets on Insulin Sensitivity

NCT03189121
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 50 Years · Male only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 9, 2019 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Almonds: Digestive Health and Immune Function of Adults and Children

NCT01973595
View directory record Official record
Conditions
Healthy
Interventions
Almonds, Then no almonds, No Almonds, Then almonds
Dietary Supplement · Other
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 40 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated May 25, 2016 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional

A Mediterranean Diet Nutrition Education Program for the Reduction of Cardiovascular Disease Risk in the Southeastern U.S.

NCT03683134
View directory record Official record
Conditions
Cardiovascular Diseases, Cardiovascular Risk Factor, Obesity
Interventions
Mediterranean diet, Olive oil and mixed nuts, American Heart Association
Behavioral · Dietary Supplement
Lead sponsor
Auburn University
Other
Eligibility
19 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 26, 2018 · Synced Sep 6, 2026, 2:21 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Effect of Pumpkin Seeds on the Dietary Fatty Acid Intake and Blood Pressure in Women

NCT01928966
View directory record Official record
Conditions
Cardiovascular Disease, Blood Pressure
Interventions
Pumpkin Seeds
Other
Lead sponsor
Texas Woman's University
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 6, 2026, 2:21 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Slowly Digestible Carbohydrates for GLP-1 Secretion

NCT07572513
View directory record Official record
Conditions
Blood Glucose, GLP-1, Satiety, Second Meal Intake, Healthy Participant Study
Interventions
Maltodextrin (Placebo), Raw Corn Starch
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 45 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Walnuts to Achieve Lasting NUTrition to Prevent Diabetes

NCT03334175
View directory record Official record
Conditions
PreDiabetes, Overweight and Obesity
Interventions
Walnuts
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 1, 2020 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mediterranean-like Unprocessed (CLEAN-MED) Diet Intervention Study of the Gut Microbiome of Healthy Adults

NCT05411120
View directory record Official record
Conditions
Diet Therapy
Interventions
Western Diet, CLEAN-MED
Other
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 60 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Recruiting Not applicable Interventional

Resistance Training and Post Workout Protein to Improve Body Composition During Neoadjuvant Chemotherapy for Breast Cancer

NCT06858449
View directory record Official record
Conditions
Cancer, Breast Cancer
Interventions
Whey protein (20 grams), Whey protein (60 grams)
Dietary Supplement
Lead sponsor
Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
Other
Eligibility
20 Years to 89 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Recruiting Not applicable Interventional

Lean Beef as Part of a Healthy Meal Plan in Adolescents With Polycystic Ovary Syndrome (PCOS)/Polyendocrine Metabolic Ovarian Syndrome (PMOS)

NCT07780188
View directory record Official record
Conditions
PCOS (Polycystic Ovary Syndrome), Obese Adolescents, Overweight (Without Type 2 Diabetes) With Weight-related Comorbidities, Overweight Adolescents, Irregular Menstrual Cycle, Irregular Menstrual Cycles, Hirsutism, Hyperandrogenism
Interventions
Beef+
Other
Lead sponsor
Texas A&M University
Other
Eligibility
11 Years to 17 Years · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 6, 2026, 2:21 AM EDT
Completed Not applicable Interventional Results available

Study of Dietary Additive Phosphorus on Proteinuria and Fibroblast Growth Factor-23

NCT02020785
View directory record Official record
Conditions
Albuminuria
Interventions
Higher phosphorus period, Lower phosphorus period
Other
Lead sponsor
Geisinger Clinic
Other
Eligibility
21 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 4, 2019 · Synced Sep 6, 2026, 2:21 AM EDT