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ClinicalTrials.gov public records Last synced Oct 22, 2026, 11:45 PM EDT

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Showing 1–24 of 307 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Low Protein Diet Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Beneficial Effects of Healthy Snacks on Appetite Control, Satiety, and Reward-driven Eating Behavior in Young People

NCT01781286
View directory record Official record
Conditions
Obesity
Interventions
High Protein, Low Protein
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
13 Years to 19 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 23, 2018 · Synced Oct 22, 2026, 11:45 PM EDT
Recruiting Not applicable Interventional

Support Through Remote Observation and Nutrition Guidance Program for Individuals With Gastroesophageal Cancer

NCT06497569
View directory record Official record
Conditions
GastroEsophageal Cancer
Interventions
Dietitian Consultation, Survey, Fitbit Data Collection, Referral to Dietitian, Social Determinants of Health Survey (SDOH)
Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
Tampa, Florida • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Results available

UrApp for Childhood Nephrotic Syndrome Management (Incident Cohort)

NCT04075656
View directory record Official record
Conditions
Idiopathic Nephrotic Syndrome
Interventions
Standard of Care, UrApp
Behavioral
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
3
States / cities
Atlanta, Georgia • Minneapolis, Minnesota • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 6, 2025 · Synced Oct 22, 2026, 11:45 PM EDT
Terminated Not applicable Interventional

Ketogenic Diet in Patients With Heart Failure

NCT04235699
View directory record Official record
Conditions
Heart Failure With Preserved Ejection Fraction
Interventions
Nutritional and Dietary Manipulation
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 75 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 24, 2024 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Results available

Dietary Glycemic Index, Brain Function and Food Intake in Patients With Type 1 Diabetes Mellitus

NCT02772783
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
high GI meal, low GI meal, euglycemic insulin clamp, primed-variable insulin infusion
Other · Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 18, 2021 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dietary Impact on Intestinal Sulfate Metabolism

NCT05333900
View directory record Official record
Conditions
Healthy Nutrition
Interventions
Plant-Based Diet then animal-based diet, Animal-based diet then plant-based diet
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 5, 2023 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Intervention Study to Compare the Natriuretic Effects of Enalapril on Low and High Salt Diet

NCT01324245
View directory record Official record
Conditions
Salt-sensitive Hypertension
Interventions
Fenoldopam
Drug
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2006
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 28, 2011 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Meat Protein and Calcium: Do They Interact Synergistically or Antagonistically?

NCT00700804
View directory record Official record
Conditions
Dietary Proteins
Interventions
High Protein Diet, Low Protein Diet
Behavioral
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
50 Years to 80 Years · Female only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Jul 2, 2018 · Synced Oct 22, 2026, 11:45 PM EDT
Not listed Not applicable Interventional

Blood Glucose Stability and Variability on Two Diets

NCT01443143
View directory record Official record
Conditions
Type 2 Diabetes, Obesity
Interventions
Portion-controlled diet, Usual Diet
Other · Dietary Supplement
Lead sponsor
Nutrisystem, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 29, 2011 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Biomarkers for Predicting Macronutrient Intake

NCT06582381
View directory record Official record
Conditions
Glucose Metabolism, Amino Acid Metabolism
Interventions
Meal set A, Meal set B, Meal set C, Meal set D
Other
Lead sponsor
Texas A&M University
Other
Eligibility
50 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Aug 28, 2026 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional

Ketogenic Diet to Improve Neuro-recovery

NCT03509571
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Ketogenic Diet, Standard Diet
Other
Lead sponsor
Ohio State University
Other
Eligibility
19 Years to 60 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Oct 22, 2026, 11:45 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

CARNIVAL Study: Gut Flora Dependent Metabolism of Dietary CARNItine and Phosphatidylcholine and cardioVAscuLar Disease

NCT01731236
View directory record Official record
Conditions
Dietary Modification
Interventions
Carnitine, Choline, Antibiotics, Choline and Aspirin, Carnitine and Aspirin
Dietary Supplement · Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2029
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Results available

The BRAINFOOD Trial to Prevent Recurrent Hepatic Encephalopathy.

NCT04675775
View directory record Official record
Conditions
Cirrhosis, Ascites, Liver Diseases, Frailty, Sarcopenia, Hepatic Encephalopathy
Interventions
Medically-tailored meals (MTM), Protein supplements, Nutrition education handout
Other · Dietary Supplement · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Oct 22, 2026, 11:45 PM EDT
Recruiting Not applicable Interventional

Type 1 Diabetes Management Using a Very Low Carbohydrate Versus Standard Diet

NCT03710928
View directory record Official record
Conditions
Type1diabetes
Interventions
very low carbohydrate diet, standard carbohydrate diet
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 40 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2024 · Synced Oct 22, 2026, 11:45 PM EDT
Terminated Not applicable Interventional

Effects of a Three-Month Low Calorie Diet Weight Loss Intervention on Knee Replacement Outcomes

NCT04015011
View directory record Official record
Conditions
Obesity
Interventions
LCD Intervention
Combination Product
Lead sponsor
NYU Langone Health
Other
Eligibility
50 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 8, 2022 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Calcium Retention as Influenced by Dietary Components That Induce an Acid Load

NCT00620763
View directory record Official record
Conditions
Healthy
Interventions
High Meat - High Potential Renal Acid Load (PRAL) diet, Low Protein - Low Potential Renal Acid Load (PRAL) diet
Other
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
40 Years to 75 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Jul 2, 2018 · Synced Oct 22, 2026, 11:45 PM EDT
Withdrawn No phase listed Observational

Neurodevelopmental Outcome of Early Dietary Lysine Restriction in Pyridoxine Dependent Epilepsy Patients

NCT01795170
View directory record Official record
Conditions
Pyridoxine Dependant Epilepsy
Interventions
Lysine Restricted Diet, Pyridoxine
Dietary Supplement · Drug
Lead sponsor
University of British Columbia
Other
Eligibility
3 Months to 3 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
2
States / cities
Aurora, Colorado • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 30, 2014 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional

The Lifestyle Education About Nutrition for Diabetes (Legend) Study

NCT05237128
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
Very low-carbohydrate diet, Moderate-carbohydrate plate-method diet
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
21 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
2
States / cities
San Francisco, California • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Minimally Processed Animal Protein on Biomarkers for Cognitive Decline

NCT06261775
View directory record Official record
Conditions
Healthy Lifestyle
Interventions
Red meat-based meal, No meat diet
Other
Lead sponsor
South Dakota State University
Other
Eligibility
65 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Brookings, South Dakota
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Oct 22, 2026, 11:45 PM EDT
Active, not recruiting Not applicable Interventional

Effect of VLCD on the Reduction of Liver Steatosis and Fibrosis in Subjects With Obesity and NAFLD

NCT04861571
View directory record Official record
Conditions
NAFLD
Interventions
Dietary intervention with very low calorie diet (VLCD), Control Arm
Dietary Supplement · Other
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Oct 22, 2026, 11:45 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Oxalate-Driven Host Responses in Kidney Stone Disease

NCT05417568
View directory record Official record
Conditions
Kidney Stones
Interventions
Low Oxalate Diet, High Oxalate Diet
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 60 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 15, 2026 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Results available

Trial of Low and High Intensity Strategies to Maintain BP Control

NCT00760552
View directory record Official record
Conditions
Hypertension
Interventions
High Intensity Intervention, Low Intensity Intervention, All- 6 month pharmacist intervention
Other
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
249 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Apr 27, 2015 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Exogenous Ketones on Indices of Keto-Adaptation in Obese Subjects on Weight Reducing Diets.

NCT06449287
View directory record Official record
Conditions
Ketogenic Diet, Weight Loss
Interventions
Diet, Blood Draw, Ketone/Glucose Monitoring, Body Composition, Urine Analysis, Neuropsychological Measures - ANAM
Other · Biological · Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
21 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 19, 2024 · Synced Oct 22, 2026, 11:45 PM EDT
Completed Not applicable Interventional

Metabolism of Low Carbohydrate and Ketogenic Diet

NCT05071287
View directory record Official record
Conditions
Diabetic Kidney Disease, Cognitive Function, Weight Loss, Diabetic Control, Type2 Diabetes
Interventions
mHealth + low-fat diet, mHealth + low-carb/ketogenic diet
Other
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Feb 21, 2025 · Synced Oct 22, 2026, 11:45 PM EDT