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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Diet, Food, and Nutrition Clear all
Completed No phase listed Observational Accepts healthy volunteers

Using Iodized Salt to Improve Serum Folate, B12 and Iron Levels

NCT06904612
View directory record Official record
Conditions
Neural Tube Defects, Folic Acid Deficiency, Spina Bifida, Anencephaly-Spina Bifida, B12 Deficiency Vitamin, Anemia, Iron Deficiency Anaemia Due to Dietary Causes
Interventions
Micronutrient fortified iodized salt
Dietary Supplement
Lead sponsor
Hydrocephalus and Neuroscience Institute
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jul 13, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Cooking HEalthy and Facilitating Early Childhood Development: CHEF-ED Study

NCT06940817
View directory record Official record
Conditions
Teaching Healthy Cooking Skills to Parents and Their Preschool Children
Interventions
CHEF-ED + Food Delivery, Food Delivery Only
Behavioral
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 64 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 24, 2025 · Synced Jul 21, 2026, 6:08 PM 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 Jul 21, 2026, 6:08 PM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Food Prescriptions to Promote Affordable Diets

NCT05309395
View directory record Official record
Conditions
Diet, Healthy, Overweight and Obesity
Interventions
FoodRx
Combination Product
Lead sponsor
Kaiser Permanente
Other
Eligibility
2 Years and older
Enrollment
720 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Apr 28, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Dietary Fat Cooking Blend on Energy Expenditure in Children

NCT01720589
View directory record Official record
Conditions
Childhood Obesity
Interventions
Melt (test oil), Corn oil (control)
Dietary Supplement
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
15 Years to 18 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 29, 2013 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ambrosia: Evaluating the Effects of a Food-As-Medicine Platform on Gut Microbiome Composition and Metabolism

NCT06091813
View directory record Official record
Conditions
Impact of Dietary Chages Directed by Medical Nutrition Therapy on Gut Microbiome Composition
Interventions
Nutrition Counseling
Behavioral
Lead sponsor
Persephone Biosciences
Industry
Eligibility
18 Years to 64 Years
Enrollment
546 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional

Home Plate: A Trial to Improve Home Food Preparation Practices Among Parents of Toddlers

NCT02458833
View directory record Official record
Conditions
Obesity
Interventions
Home Plate
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
18 Years and older
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 23, 2019 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Phase 1 Interventional

Tailoring OT and RD Services for Home-delivered Meal Clients

NCT06059404
View directory record Official record
Conditions
Diet, Food, and Nutrition, Accidental Fall, Diabetes Mellitus, Heart Diseases
Interventions
Meals + RD services only, Meals + OT services only, Meals + RD + OT services
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
60 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 2, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

School Lunch Salad Bars and Fruit and Vegetable Consumption

NCT03283033
View directory record Official record
Conditions
Children, Only, Behavior, Eating, School, Obesity, Food Selection, Food Habits, Diet Modification, Adolescent Behavior
Interventions
New salad bar, Marketing
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
6 Years to 18 Years
Enrollment
7,491 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 23, 2023 · Synced Jul 21, 2026, 6:08 PM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Dietary Guidelines for Americans-Ultra Processed Study

NCT07252037
View directory record Official record
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
Enrollment
79 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Recruiting Not applicable Interventional

Poi for Mama: a Pilot to Improve Maternal Microbiome and Gestational Diabetes Risk

NCT07446205
View directory record Official record
Conditions
Gestational Diabetes Mellitus (GDM), Pregnancy
Interventions
Fermented Poi
Other
Lead sponsor
University of Hawaii
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
3
States / cities
Honolulu, Hawaii • Waimanalo, Hawaii
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Food Pharmacy at Oregon Health & Science University (OHSU) Knight Cardiovascular Institute (KCVI)

NCT04036773
View directory record Official record
Conditions
Hyperlipidemias
Interventions
Fruit and vegetable deliveries
Dietary Supplement
Lead sponsor
Oregon Health and Science University
Other
Eligibility
19 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 19, 2022 · Synced Jul 21, 2026, 6:08 PM EDT
Withdrawn Not applicable Interventional

HEART Kitchen Pilot

NCT07037121
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Aug 10, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Snack Variety in Weight Loss Treatment

NCT00328744
View directory record Official record
Conditions
Obesity
Interventions
Standard, Limited Variety
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
21 Years to 65 Years
Enrollment
202 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 19, 2012 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional

Very Low Calorie Diet Weight Loss

NCT02780206
View directory record Official record
Conditions
Obesity, Very Low Calorie Diet
Interventions
Stable isotope amino acid infusion
Other
Lead sponsor
Texas A&M University
Other
Eligibility
30 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2022 · Synced Jul 21, 2026, 6:08 PM EDT
Active, not recruiting Phase 4 Interventional

The PASTDUe Nutrition Ecosystem Project (PASTDUe)

NCT05127109
View directory record Official record
Conditions
Diet, Healthy, Food, Nutrition, Intensive Care, Abdominal Trauma, Surgery, Intra-abdominal Infection, Sepsis, Ischemic Bowel, Vascular, Penetrating Abdominal Trauma, Enteral Feeding, Oral
Interventions
Nutrition Ecosystem pathway, Comparator
Combination Product · Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Food Swaps to Improve the Healthfulness and Reduce the Carbon Footprint of Grocery Purchases

NCT06648226
View directory record Official record
Conditions
Food Selection, Nutrition, Food Preferences, Dietary Habits, Sustainability, Healthy Diet
Interventions
Health swaps, Climate swaps, Combined health and climate swaps, Control
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
1,201 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional

Effect of Ultra-processed Versus Unprocessed Diets on Energy Metabolism

NCT05290064
View directory record Official record
Conditions
Healthy Diet, Obesity
Interventions
Ultra-processed food, high energy density, Ultra-processed food, both low, Ultra-processed food, both high, Unprocessed food diet
Other
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 60 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Dietary Antioxidants on Cardiovascular Risk Factors

NCT00756405
View directory record Official record
Conditions
Obesity, Hyperlipidemia, Hypertension
Interventions
Antioxidant diet, Antioxidant supplement, Placebo
Behavioral · Dietary Supplement
Lead sponsor
Christopher Gardner
Other
Eligibility
18 Years and older
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mobile Food Market Cluster Randomized Trial

NCT05672186
View directory record Official record
Conditions
Healthy Diet, Nutrition, Healthy
Interventions
Full-service market intervention, No intervention
Behavioral · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
262 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Snacks and Satiety

NCT03947281
View directory record Official record
Conditions
Eating Behavior, Overweight, Obesity
Interventions
Almond snack, Cereal-based snack
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 45 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Oct 25, 2024 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutritious Eating With Soul (The NEW Soul Study)

NCT03354377
View directory record Official record
Conditions
Cardiovascular Disease Risk Factors, Overweight and Obesity
Interventions
Dietary Intervention Meetings, Physical Activity, Podcasts/Mailings
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
159 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 1, 2023 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Vitamin A Equivalence of Plant Carotenoids in Children

NCT00680212
View directory record Official record
Conditions
Vitamin A Deficiency
Interventions
dietary carotenoids, spinach, rice, and synthetic beta-carotene
Dietary Supplement
Lead sponsor
Tufts University
Other
Eligibility
6 Years to 8 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 17, 2009 · Synced Jul 21, 2026, 6:08 PM EDT
Completed No phase listed Observational

Feasibility, Acceptability, and Validation of a User-friendly Diet Quality Tool in Adults From Ambulatory Nutrition Clinics

NCT07109011
View directory record Official record
Conditions
Weight Management, Cardiovascular (CV) Risk, Metabolic and Nutritional Disorders
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Jul 21, 2026, 6:08 PM EDT