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Showing 1–24 of 346 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: high-fat diet Clear all
Completed Not applicable Interventional

Reverse HFpEF: Ketogenic Reversal of Heart Failure With Preserved Ejection Fraction Study

NCT04942548
View directory record Official record
Conditions
Heart Failure
Interventions
Ketogenic Diet
Other
Lead sponsor
National Jewish Health
Other
Eligibility
21 Years to 80 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
2
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 2, 2024 · Synced Sep 18, 2026, 2:42 PM EDT
Completed No phase listed Observational

Utilization of the Ketogenic Diet in Patient With Relapsing Remitting MS

NCT03718247
View directory record Official record
Conditions
Relapsing Remitting Multiple Sclerosis
Interventions
Modified Atkins diet
Other
Lead sponsor
University of Virginia
Other
Eligibility
12 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

High Quality Protein for Assisting With Weight Loss

NCT03085511
View directory record Official record
Conditions
Obesity
Interventions
Egg breakfast (EB), Weight Loss Counseling, Weight Loss Diet, Cereal Breakfast (CB)
Behavioral
Lead sponsor
Texas Tech University
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated May 29, 2019 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Calorie Restricted, Very Low Fat Plant-based Diet and Multi-component Exercise Program on Metabolic Health

NCT02706288
View directory record Official record
Conditions
Obesity, Insulin Resistance
Interventions
Weight loss with very low fat plant-based diet and regular exercise
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 55 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 7, 2022 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

High-fat Meal Challenge in Pediatrics

NCT05230433
View directory record Official record
Conditions
Pediatric Obesity, Insulin Resistance
Interventions
High-fat Challenge
Dietary Supplement
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
8 Years to 17 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Sep 28, 2025 · Synced Sep 18, 2026, 2:42 PM EDT
Not listed Not applicable Interventional

A Pilot and Feasibility Study to Evaluate High vs Low Glycemic Index Mixed Meal Tolerance Test in Adolescents and Young Adults With Cystic Fibrosis

NCT06350149
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Sugar Sweetened Beverages (SSB), Hi GI, Lo GI
Other
Lead sponsor
Emory University
Other
Eligibility
12 Years to 21 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 4, 2024 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

High Protein Breakfast on Weight Management and Glycemic Control in 'Breakfast-skipping' Teens

NCT03134014
View directory record Official record
Conditions
Breakfast, Appetitive Behavior
Interventions
Breakfast
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
15 Years to 21 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated May 1, 2019 · Synced Sep 18, 2026, 2:42 PM EDT
Terminated Phase 4 Interventional

Targeting the Gut-brain Axis to Facilitate Weight Loss in High Fat Diet Consumers

NCT04614233
View directory record Official record
Conditions
Overweight and Obesity
Interventions
RiduZone (90% OEA), Placebo
Dietary Supplement · Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 9, 2025 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Phase 4 Interventional

Effects of Saxagliptin on Adipose Tissue Inflammation in Humans

NCT02285985
View directory record Official record
Conditions
Type 2 Diabetes Mellitus (T2DM)
Interventions
Saxagliptin, Placebo
Drug
Lead sponsor
Phoenix VA Health Care System
Federal
Eligibility
21 Years to 70 Years
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 21, 2024 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional

Translating the Diabetes Prevention Program Into a Virtual Lifestyle Management Program

NCT00867425
View directory record Official record
Conditions
Obesity, Diabetes, Cardiovascular Disease
Interventions
Virtual Lifestyle Management
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 62 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Apr 26, 2012 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Results available

Effects of the Dietary Approaches to Stop Hypertension(DASH) Sodium-restricted Diet in Diastolic Heart Failure

NCT00939640
View directory record Official record
Conditions
Diastolic Heart Failure, Hypertensive Heart Disease
Interventions
DASH/sodium-restricted diet (SRD)
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
50 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 14, 2019 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Saturated Fat on Large Low-density Lipoprotein (LDL) and High-density Lipoprotein (HDL)

NCT00895141
View directory record Official record
Conditions
Dyslipidemia
Interventions
Saturated Fat Diet
Dietary Supplement
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
18 Years to 70 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jan 13, 2013 · Synced Sep 18, 2026, 2:42 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Safety and Pharmacokinetics Study of DM1157 to Treat Malaria

NCT03490162
View directory record Official record
Conditions
Malaria
Interventions
DM1157, Placebo
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 22, 2021 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional

Diabetes Dietary Study- Low Carbohydrate and Low-Fat Diets in Type 2 Diabetes

NCT00795691
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
low-carbohydrate diet, low-fat diet
Behavioral
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jul 11, 2019 · Synced Sep 18, 2026, 2:42 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Small Extracellular Vesicles and Insulin Action

NCT05933707
View directory record Official record
Conditions
Obesity, Insulin Resistance, Metabolically Healthy Obesity, Obesity, Metabolically Benign
Interventions
People with Metabolically Unhealthy Obesity - Low Calorie Diet
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
25 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 18, 2026, 2:42 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 18, 2024 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Modified Ketogenic-Mediterranean Diet on Alzheimer's Disease

NCT02984540
View directory record Official record
Conditions
Mild Cognitive Impairment, Insulin Resistance
Interventions
Low-Carbohydrate Diet, Low-Fat Diet
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
50 Years to 85 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 27, 2025 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diet Modulation of Bacterial Sulfur and Bile Acid Metabolism and Colon Cancer Risk

NCT03550885
View directory record Official record
Conditions
Colorectal Cancer
Interventions
High taurine and saturated fat diet, Low in taurine and saturated fat diet
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
45 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Highly Processed Foods and Vascular Health

NCT05628350
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
No UPF controlled diet, High UPF controlled diet
Other
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
40 Years to 65 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Metabolic Fuels Study

NCT02235038
View directory record Official record
Conditions
Obesity
Interventions
Low carbohydrate diet, Moderate carbohydrate diet, High carbohydrate diet
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
4
States / cities
Boston, Massachusetts • Framingham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Sep 18, 2026, 2:42 PM EDT
Not yet recruiting Not applicable Interventional

High-protein plUs reSistance Training in gLucagon-like pEptide 1 Receptor Agonist Users (HUSTLE)

NCT07700030
View directory record Official record
Conditions
Weight Loss
Interventions
High protein diet, Resistance Training (RT) Programs
Other · Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
30 Years to 60 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Investigating Fitness Interventions in the Elderly (INFINITE)

NCT01048736
View directory record Official record
Conditions
Obesity, Older Adults, Sedentary
Interventions
Exercise Only, Exercise + Diet
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
65 Years to 80 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Increased Dietary Protein and Meal Frequency Reduces Total and Abdominal Body Fat During Weight Maintenance and Weight Loss

NCT01749449
View directory record Official record
Conditions
Obesity
Interventions
protein and meal frequency
Other
Lead sponsor
Skidmore College
Other
Eligibility
30 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Saratoga Springs, New York
Source: ClinicalTrials.gov public record
Updated Dec 12, 2012 · Synced Sep 18, 2026, 2:42 PM EDT
Completed Phase 3 Interventional Results available

A Randomized, Double-Blind, Dose Response-Control, Crossover Study to Evaluate the Safety and Efficacy of Two Doses of EUR-1008 (APT-1008) in Chronic Pancreatitis (CP) Participants With Exocrine Pancreatic Insufficiency (EPI)

NCT00788593
View directory record Official record
Conditions
Chronic Pancreatitis, Exocrine Pancreatic Insufficiency
Interventions
Placebo, EUR-1008 (APT-1008) High Dose, EUR-1008 (APT-1008) Low Dose
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
9
States / cities
Little Rock, Arkansas • Los Angeles, California • Gainesville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2014 · Synced Sep 18, 2026, 2:42 PM EDT