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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Dietary intake Clear all
Not listed Not applicable Interventional

The ReNEW Study: Maestro® New Enrollment Post-Approval Study Protocol

NCT03145636
View directory record Official record
Conditions
Obesity, Morbid
Interventions
vBloc Maestro Rechargeable System, vBloc Achieve Weight Management Program, Control Weight Management (CWM) program
Device · Other
Lead sponsor
ReShape Lifesciences
Industry
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
2
States / cities
Scottsdale, Arizona • Mineola, New York
Source: ClinicalTrials.gov public record
Updated May 21, 2019 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Energy Imbalance on Food Intake Behaviors

NCT03112161
View directory record Official record
Conditions
Obesity
Interventions
Eucaloric Feeding Period, Overfeeding Feeding Period, Underfeeding Feeding Period
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
25 Years to 40 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2015
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 12, 2017 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Increasing Physical Activity in Latino Men

NCT03196570
View directory record Official record
Conditions
Physical Activity
Interventions
Physical Activity Intervention, Wellness Contact Control
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 8, 2020 · Synced Sep 26, 2026, 3:56 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Vitamin D Status and Metabolism in Human Pregnancy

NCT03051867
View directory record Official record
Conditions
Pregnancy
Interventions
Not listed
Lead sponsor
Cornell University
Other
Eligibility
21 Years and older · Female only
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Feb 13, 2017 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Parents and Children Together Preventing Diabetes (PACT PD)

NCT01819493
View directory record Official record
Conditions
Diabetes Prevention
Interventions
Lifestyle Intervention, Standard Family-Based intervention
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
8 Years and older
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 14, 2018 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment of TMAO Formation With Egg Intake Versus Choline Supplement in a Healthy Population

NCT03142763
View directory record Official record
Conditions
Cardiovascular Risk Factor
Interventions
Eggs, Choline Supplement
Other · Dietary Supplement
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 30 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 6, 2019 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Almond Intake on Atherogenic Lipoprotein Particles

NCT01792648
View directory record Official record
Conditions
Dyslipidemia, Obesity, Abdominal
Interventions
Standard reference diet, Almond supplemented diet, Low carbohydrate reference diet
Other
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
20 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Nov 5, 2017 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Motivating Value of Vegetables Study

NCT02585102
View directory record Official record
Conditions
Overweight, Obesity
Interventions
Recommended Vegetable Intake, Usual Vegetable Intake
Other
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 6, 2020 · Synced Sep 26, 2026, 3:56 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Blood Glucose Differences Between Left Arm and Right Arm Using a Continuous Glucose Monitor

NCT04102657
View directory record Official record
Conditions
Diabetes
Interventions
Intermittent Fasting, Free-Living Diet, Left Arm Exercise, Right Arm Exercise
Other
Lead sponsor
University of the Pacific
Other
Eligibility
18 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Stockton, California
Source: ClinicalTrials.gov public record
Updated Sep 24, 2019 · Synced Sep 26, 2026, 3:56 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Healthy Children, Healthy Communities: Effectiveness of a Multilevel Rural Community Engagement Model for Improving Children's Dietary Intake in Family Child Care Homes

NCT07160530
View directory record Official record
Conditions
Childhood Obesity Pevention, Diet Quality, Feeding Behaviors, Health Behavior Change, Rural Health
Interventions
EAT Family Style, Better Kid Care
Behavioral
Lead sponsor
University of Nebraska Lincoln
Other
Eligibility
3 Years and older
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 26, 2026, 3:56 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Interactive Effects of Sodium and Potassium on Vascular Health in Older Adults

NCT07649005
View directory record Official record
Conditions
Healthy Older Adults
Interventions
low sodium/low potassium diet, high sodium/low potassium diet, high sodium/high potassium diet
Other
Lead sponsor
Florida State University
Other
Eligibility
55 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Sep 26, 2026, 3:56 AM EDT
Terminated Not applicable Interventional

The Role of Satiety in the Effect of Portion Size on Intake

NCT03409601
View directory record Official record
Conditions
Feeding Behavior
Interventions
100% Portion Size, 125% Portion Size, 150% Portion Size, 175% Portion Size
Other
Lead sponsor
Penn State University
Other
Eligibility
20 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 17, 2019 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

SWAP-MEAT Athlete: Three Diets on Athletic Performance

NCT05472701
View directory record Official record
Conditions
Health Behavior
Interventions
Diet order: WFPB, PBMA, Animal, WFPB, Animal, PBMA, PBMA, WFPB, Animal, PBMA, Animal, WFPB, Animal, WFPB, PBMA, Animal, PBMA, WFPB
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 35 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 20, 2023 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Tracking Our Lives Study

NCT04052529
View directory record Official record
Conditions
Mental Health Wellness 2, Health Behavior, Eating Disorders
Interventions
Dietary self-monitoring
Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 4, 2019 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Pain in Amputees Reduced by Administration of Diet Examination

NCT05460845
View directory record Official record
Conditions
Amputation, Phantom Limb Pain, Residual Limb Pain
Interventions
Low-Carbohydrate Diet
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 29, 2023 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional

Correlative Analysis of the Genomics of Vitamin D and Omega-3 Fatty Acid Intake in Prostate Cancer

NCT03290417
View directory record Official record
Conditions
Prostate Cancer
Interventions
Vitamin D, Omega-3, Turmeric
Dietary Supplement
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
Male only
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 17, 2020 · Synced Sep 26, 2026, 3:56 AM EDT
Enrolling by invitation Not applicable Interventional

Breath Hydrogen and Methane as Biomarkers of Fiber Intake

NCT07375329
View directory record Official record
Conditions
Healthy Eating
Interventions
Breath Tester
Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Preliminary Effect of Food Processing and Sweeteners on Glycemic and Metabolic Measures

NCT05658757
View directory record Official record
Conditions
Blood Sugar; High, Blood Pressure, Dietary Habits
Interventions
Regular sweetened commercial foods, Allulose sweetened commercial foods, Whole and minimally processed and sweetened foods
Other
Lead sponsor
University of California, Irvine
Other
Eligibility
20 Years to 99 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated May 2, 2023 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional

Project MiNT: Assessing the Impact of Food & Video-Based Nutrition Education on Patients With Poorly Controlled Diabetes

NCT04264572
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Medically Tailored Meals, Tele-Medical Nutrition Therapy (tele-MNT)
Other · Behavioral
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 28, 2025 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional

Improving Infant Nutrition in Southern Ethiopia

NCT03423472
View directory record Official record
Conditions
Nutrition Disorders
Interventions
Orange Fleshed Sweet Potato (OFSP) agriculture promotion and nutrition education on vitamin A intake, Healthy Baby Toolkit, Standart of care
Behavioral
Lead sponsor
Emory University
Other
Eligibility
Not listed
Enrollment
605 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 3, 2019 · Synced Sep 26, 2026, 3:56 AM EDT
Withdrawn No phase listed Observational

Effects of Swallowed Steroids on Bone Density and Growth in Pediatric Eosinophilic Esophagitis

NCT03615950
View directory record Official record
Conditions
Eosinophilic Esophagitis
Interventions
Bone Mineral Density (DEXA) scan, Vitamin D Measurement, Height measurement, Assessment of medication compliance
Diagnostic Test · Other
Lead sponsor
Arkansas Children's Hospital Research Institute
Other
Eligibility
5 Years to 12 Years
Timeline
2018 – 2020
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced Sep 26, 2026, 3:56 AM EDT
Not yet recruiting Not applicable Interventional

Ketogenic Diet to Reduce Osteoarthritis Pain in MCI

NCT07417891
View directory record Official record
Conditions
Osteoarthritis (OA) of the Hip, Osteoarthritis (OA) of the Knee, Osteoarthritis (OA) of the Shoulder, Osteoarthritis, Mild Cognitive Impairment, MCI, Mild Cognitive Impairment (MCI), Dementia
Interventions
Well-formulated ketogenic diet
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
55 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Fairway, Kansas
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 26, 2026, 3:56 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Graded Protein Intake on Body Composition in Older Adults

NCT04845282
View directory record Official record
Conditions
Sarcopenia
Interventions
Graded Protein plus Resistance Training, RDA Protein plus Resistance Training
Dietary Supplement
Lead sponsor
Wake Forest University
Other
Eligibility
55 Years to 110 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 26, 2022 · Synced Sep 26, 2026, 3:56 AM EDT
Completed Not applicable Interventional

Investigation of Medical Management to Prevent Episodes of Diverticulitis Trial

NCT05681559
View directory record Official record
Conditions
Diverticulitis
Interventions
Medi for All, Standard Fiber Supplementation
Behavioral · Dietary Supplement
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 26, 2026, 3:56 AM EDT