Search | Clinical Trials Finder

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Nov 9, 2026, 9:26 AM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 32 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: Ultra Processed Diet Clear all

Conditions: Healthy Volunteers
Interventions: [11C] raclopride, liquid nutritive stimulus, Tasteless Oral Stimulus Solution, Minimally Processed Diet, Ultra Processed Diet, Baseline Diet; Drug · Other
Lead sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK); NIH
Eligibility: 18 Years to 45 Years
Enrollment: 140 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026 – 2030
U.S. locations: 1
States / cities: Bethesda, Maryland

Conditions: Prostate Cancer Metastatic Disease
Interventions: Hypocaloric anti-inflammatory diet; Behavioral
Lead sponsor: University of California, Los Angeles; Other
Eligibility: 18 Years and older · Male only
Enrollment: 70 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2027
U.S. locations: 2
States / cities: Los Angeles, California

Conditions: Celiac Disease in Children, Nutrition Disorder, Child
Interventions: Gluten-Free Diet Education; Other
Lead sponsor: Boston Children's Hospital; Other
Eligibility: 2 Years to 18 Years
Enrollment: 120 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2027
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Healthy Diet, Obesity
Interventions: Ultra-processed food, high energy density (UPF HL), Ultra-processed food, both low (UPF LL), Ultra-processed food, both high (UPF HH), Unprocessed food diet (UNF LL); Other
Lead sponsor: National Institutes of Health Clinical Center (CC); NIH
Eligibility: 18 Years to 60 Years
Enrollment: 38 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2025
U.S. locations: 1
States / cities: Bethesda, Maryland

Conditions: Obesity and Overweight
Interventions: Diet containing 80% ultra processed foods, Diet containing 20% ultra processed foods; Behavioral
Lead sponsor: Columbia University; Other
Eligibility: 25 Years and older
Enrollment: 20 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2028
U.S. locations: 1
States / cities: New York, New York

Conditions: Cardiovascular Diseases, Type 2 Diabetes, Obesity and Obesity-related Medical Conditions
Interventions: Whole Food Plant Based Diet Jumpstart; Behavioral
Lead sponsor: Reya Andrews; Other
Eligibility: 18 Years and older
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025
U.S. locations: 1
States / cities: Lexington, Kentucky

Conditions: Food Allergy
Interventions: Education and Opportunities on Early Introduction, Clinician Supervised Feeding of Known Allergenic Food; Behavioral
Lead sponsor: Stanford University; Other
Eligibility: 4 Months to 11 Months
Enrollment: 92 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2026 – 2028
U.S. locations: 1
States / cities: Stanford, California

Conditions: Diet, Healthy, Diet Habit, Disease, Chronic, Health Behavior, Rural Health
Interventions: The UnProcessed Pantry Project (UP3); Behavioral
Lead sponsor: Montana State University; Other
Eligibility: 18 Years and older
Enrollment: 78 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020
U.S. locations: 1
States / cities: Bozeman, Montana

Conditions: Depression
Interventions: Low UPF Meals (Study Provided), Low UPF Nutritional Guidance, Low UPF Snacks (Study Provided); Other
Lead sponsor: University of Michigan; Other
Eligibility: 18 Years and older
Enrollment: 47 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2023 – 2025
U.S. locations: 1
States / cities: Ann Arbor, Michigan

Conditions: Healthy Diet
Interventions: Ultra-processed diet, Unprocessed diet; Dietary Supplement
Lead sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK); NIH
Eligibility: 18 Years to 50 Years
Enrollment: 20 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2018 – 2020
U.S. locations: 1
States / cities: Bethesda, Maryland

Conditions: Dietary Habits
Interventions: Ultra-processed Food Meal, Whole Food Meal; Other
Lead sponsor: The Cleveland Clinic; Other
Eligibility: 18 Years and older
Enrollment: 46 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020 – 2026
U.S. locations: 1
States / cities: Cleveland, Ohio

Conditions: Diet, Consumer Behavior, Nutrition Labeling
Interventions: Label exposure in mock-up UPF products; Behavioral
Lead sponsor: Johns Hopkins Bloomberg School of Public Health; Other
Eligibility: 18 Years and older
Enrollment: 7,000 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2026
U.S. locations: 1
States / cities: Baltimore, Maryland

Conditions: Diet, Food and Nutrition
Interventions: UPF Test Diet A: Starchy, refined grains, UPF Test Diet B: Meat, fish, and bread products, UPF Diet C: Dairy products, including cheese and cream; Other
Lead sponsor: Brigham and Women's Hospital; Other
Eligibility: 20 Years to 65 Years
Enrollment: 40 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2027 – 2028
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Heart Failure, NYHA Class II Heart Failure, NYHA Class III Heart Failure
Interventions: Limiting Ultraprocessed Food (UPF) in Diet; Behavioral
Lead sponsor: The Cleveland Clinic; Other
Eligibility: 18 Years and older
Enrollment: 60 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026 – 2040
U.S. locations: 1
States / cities: Cleveland, Ohio

Conditions: Overweight , Obesity, Class I Obesity
Interventions: Low-processed DGA Diet, Ultra-processed DGA Diet; Other
Lead sponsor: USDA Grand Forks Human Nutrition Research Center; Federal
Eligibility: 18 Years to 65 Years
Healthy volunteers: Accepts healthy volunteers
Timeline: 2026 – 2029
U.S. locations: 1
States / cities: Grand Forks, North Dakota

Conditions: Healthy Aging
Interventions: Omnivorous, No meat; Other
Lead sponsor: South Dakota State University; Other
Eligibility: 65 Years and older
Enrollment: 59 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2022 – 2024
U.S. locations: 1
States / cities: Brookings, South Dakota

Conditions: Healthy Diet
Interventions: Traditional Diet, Modern Diet; Dietary Supplement
Lead sponsor: Duke University; Other
Eligibility: 35 Years to 60 Years
Enrollment: 21 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2020 – 2021
U.S. locations: 1
States / cities: Durham, North Carolina

Conditions: Depression, Major Depressive Disorder, Weight Gain, Obesity, Metabolic Syndrome
Interventions: Reduction of Ultra-processed foods; Behavioral
Lead sponsor: University of California, San Francisco; Other
Eligibility: 18 Years to 80 Years
Enrollment: 20 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2025
U.S. locations: 1
States / cities: San Francisco, California

Conditions: Food Addiction
Interventions: Low UP (meals provided), Low UP (self-guided), Active Control; Other
Lead sponsor: University of Michigan; Other
Eligibility: 22 Years to 60 Years
Enrollment: 210 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2023 – 2028
U.S. locations: 1
States / cities: Ann Arbor, Michigan

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

Conditions: Healthy Nutrition
Interventions: Low-Processed Food Diet; Other
Lead sponsor: Oklahoma State University; Other
Eligibility: 18 Years to 60 Years
Enrollment: 60 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2023 – 2026
U.S. locations: 1
States / cities: Stillwater, Oklahoma

Conditions: Crohn's Disease, Active, Crohn's Disease (CD), Diet Interventions
Interventions: Catered Anti-Inflammatory Diet, Diet Guidance for Usual Diet; Behavioral
Lead sponsor: University of Miami; Other
Eligibility: 16 Years to 75 Years
Enrollment: 122 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026 – 2030
U.S. locations: 1
States / cities: Miami, Florida

Conditions: Ultra-Processed Food Intake, Obesity & Overweight
Interventions: Introductory Educational Workshop, Standard Dietary Change (ON/OFF), Cognitive Dissonance Strategies (ON/OFF); Behavioral
Lead sponsor: Oregon Research Institute; Other
Eligibility: 18 Years to 70 Years
Enrollment: 59 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026
U.S. locations: 1
States / cities: Springfield, Oregon

Conditions: Ultra-processed Labels
Interventions: NIB: Label exposure in mock-up UPF and Not-UPF products, NIB+UPFWL: Label exposure in mock-up UPF and Not-UPF products, NIB+Not-UPF Black: Label exposure in mock-up UPF and Not-UPF products, NIB+Not-UPF Green: Label exposure in mock-up UPF and Not-UPF products; Behavioral
Lead sponsor: Johns Hopkins Bloomberg School of Public Health; Other
Eligibility: 18 Years and older
Enrollment: 12,400 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2026
U.S. locations: 1
States / cities: Baltimore, Maryland

Search by objective public record fields.

Effects of Ad Libitum Ultra-Processed Diet on Brain Dopamine in Humans

Role of Race in Nutritional Approach in Men on ADT

GF-NOURISH (Gluten Free Nutrition Optimization Through Ultra-processed Food Reduction and Improved Strategies for Health)

Effect of Ultra-processed Versus Unprocessed Diets on Energy Metabolism

Effects of Ultra Processed Food on Intestinal Energy Harvest

HEART Kitchen Pilot

Early Introduction and Sustained Ingestion (EISI) Using Two Educational Opportunities in Infants

The UnProcessed Pantry Project (UP3)

You Are What You Eat: Food as a Risk Factor and a Treatment for Depression

Effect of Ultra Processed Versus Unprocessed Diets on Energy Intake

Analysis of MicroBial Metabolites After Eating Refined Food

Testing Ultra-processed Warning Labels in United States

Metabolomics-Driven Insights Into Ultra-Processed Foods

Dietary Tracking in Heart Failure

Dietary Guidelines for Americans-Ultra Processed Study

Protein-Distinct Macronutrient-Equivalent Diet 2

The Effects of Western Diet Patterns on Plasma Inflammatory and Cardio Metabolic Health Signatures in Middle-aged Adults

Diet and Depression

Ultra Crave: An Investigation of Ultra-Processed Food

Ultra-processed Food Consumption and Health Pilot Study

Determinants and Outcomes of High vs. Low Ultra-processed Feeding

Tailored Anti-Inflammatory American Diet for Patients With Crohn's Disease

Dietary Interventions to Reduce Ultra-Processed Food Intake

Testing Ultra-processed Warning Labels and Not-Ultra-processed Labels in United States