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Showing 1–24 of 204 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Dietary Fat Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Diet Intervention for Crohn's Disease Patient

NCT04213729
View directory record Official record
Conditions
Crohn Disease
Interventions
Diet Counseling, CD LFD, Dyadic Psychological Support (DPS)
Behavioral · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 70 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional

Dietary Interventions in Prediabetes

NCT01729078
View directory record Official record
Conditions
Impaired Fasting Glucose, Pre Diabetes, Liver Fat
Interventions
Dietary intervention
Dietary Supplement
Lead sponsor
Mayo Clinic
Other
Eligibility
30 Years to 80 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 28, 2015 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional

High Fat Diet II on Weight Loss

NCT00525850
View directory record Official record
Conditions
Obesity
Interventions
high fat diet, low saturated fat diet
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Aug 1, 2011 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nudging Nutrition With Monetary Incentives Environmental Cues

NCT02461108
View directory record Official record
Conditions
Obesity, Food Labeling, Health Behavior, Diet
Interventions
Subsidy, Tax, Tax and subsidy
Behavioral
Lead sponsor
Cornell University
Other
Eligibility
18 Years to 70 Years
Enrollment
221 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2015 · Synced Jul 23, 2026, 10:18 AM EDT
Terminated Not applicable Interventional

Reducing Insulin, Growth Hormones, and Tumors

NCT03785808
View directory record Official record
Conditions
Diet Modification, Lung Cancer
Interventions
Special Diet Therapy (low-carb), Special Diet Therapy (low-fat), Special Diet Therapy (USDA control)
Behavioral
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 11, 2019 · Synced Jul 23, 2026, 10:18 AM EDT
Not yet recruiting Not applicable Interventional

Olive Oil Supplementation for Heart Failure With Reduced Ejection Fraction

NCT07644806
View directory record Official record
Conditions
Heart Failure With Reduced Ejection Fraction (HFrEF)
Interventions
Extra-virgin olive oil
Other
Lead sponsor
Old Dominion University
Other
Eligibility
18 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional

The Women's Healthy Lifestyle Study

NCT00583726
View directory record Official record
Conditions
Breast Cancer
Interventions
motivational interviewing, written materials only
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 1, 2015 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Effects of the Atkins Diet Versus a Low Fat Diet on Inflammation

NCT00993278
View directory record Official record
Conditions
Cardiovascular Health, Obesity
Interventions
Low-Carbohydrate (Modified Atkins) Diet, Low-Fat (Heart Healthy) Diet
Dietary Supplement
Lead sponsor
Boston Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 13, 2015 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Glycemic Load, Metabolism & Obesity in Pregnancy

NCT01287299
View directory record Official record
Conditions
Obesity, Insulin Resistance
Interventions
Low Glycemic Load diet, Low Fat Diet
Other
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 23, 2020 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

"Effect of High Fat and High Glycemic Diets

NCT01494935
View directory record Official record
Conditions
Type 2 Diabetes
Interventions
High Glycemic Diet, Control diet
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
40 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional

The Effect of a Low-fat Vegan Dietary Intervention on Intracellular Lipid, Insulin Sensitivity, and Glycemic Control in Type 2 Diabetes

NCT06106035
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Diabetes Mellitus Type 2 in Obese
Interventions
low-fat vegan diet
Behavioral
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Flavonoids and Caffeine Supplementation on Resting Metabolism

NCT03752125
View directory record Official record
Conditions
Diet Modification
Interventions
Flavonoid, caffeine, Placebo
Dietary Supplement
Lead sponsor
Appalachian State University
Other
Eligibility
20 Years to 47 Years · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 4, 2019 · Synced Jul 23, 2026, 10:18 AM 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 Jul 23, 2026, 10:18 AM EDT
Not listed Not applicable Interventional

Weight Loss and Abdominal Fat Responses to Different Diet Compositions

NCT01034046
View directory record Official record
Conditions
Obesity, Insulin Resistance, Metabolic Syndrome
Interventions
Low Carbohydrate Diet, Low Fat Diet
Other
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Reno, Nevada
Source: ClinicalTrials.gov public record
Updated Apr 29, 2010 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Low-calorie Sweeteners and Adipose Signaling

NCT03125356
View directory record Official record
Conditions
Nutritional and Metabolic Diseases
Interventions
Diet Soda
Other
Lead sponsor
George Washington University
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 17, 2022 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Continuous vs. Intermittent Caloric Restriction on Fat Los

NCT06079658
View directory record Official record
Conditions
Obesity
Interventions
Continuous Caloric Restriction versus Intermittent Caloric Restriction on Fat Loss
Behavioral
Lead sponsor
Coastal Carolina University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Conway, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 11, 2023 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Phase 3 Interventional

The Heart Institute of Spokane Diet Study

NCT00269425
View directory record Official record
Conditions
Myocardial Infarction
Interventions
American Heart Association Step 2 diet, Mediterranean diet
Behavioral
Lead sponsor
Providence Health & Services
Other
Eligibility
18 Years and older
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2008
U.S. locations
1
States / cities
Spokane, Washington
Source: ClinicalTrials.gov public record
Updated Aug 23, 2010 · Synced Jul 23, 2026, 10:18 AM 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 23, 2026, 10:18 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Effects of Leptin Treatment on Weight Loss

NCT00050791
View directory record Official record
Conditions
Obesity
Interventions
Leptin, Very Low Calorie Diet
Drug · Behavioral
Lead sponsor
Rockefeller University
Other
Eligibility
20 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 18, 2010 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional

Lifestyle Interventions to Reduce Diabetes Risk

NCT00006162
View directory record Official record
Conditions
Glucose Intolerance, Diabetes Mellitus, Type 2
Interventions
exercise and diet
Behavioral
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
40 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1994 – 1999
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 1, 2010 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional

Diet Study on Ulcerative Colitis

NCT04147598
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
LFD, SAD
Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 70 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 31, 2019 · Synced Jul 23, 2026, 10:18 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Can Food Timing Reduce Your Diabetes Risk?

NCT05862818
View directory record Official record
Conditions
Dietary Habits
Interventions
Day shift protocol - Diet order A-B, Day shift protocol - Diet order B-A, Night shift protocol - Diet order A-B, Night shift protocol - Diet order B-A
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 45 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Jul 23, 2026, 10:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diet and Activity Promotion Among Older Working Adults

NCT01233063
View directory record Official record
Conditions
Cardiovascular Disease, Diabetes, Obesity, Aging
Interventions
Physical Activity and Diet Intervention via Alive2
Behavioral
Lead sponsor
Berkeley Analytics, Inc.
Industry
Eligibility
50 Years and older
Enrollment
610 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Aug 28, 2014 · Synced Jul 23, 2026, 10:18 AM EDT
Suspended Phase 2 Interventional

Paxalisib With a High Fat, Low Carb Diet and Metformin for Glioblastoma

NCT05183204
View directory record Official record
Conditions
Glioblastoma
Interventions
Paxalisib, Metformin, Ketogenic Diet
Drug · Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Jul 23, 2026, 10:18 AM EDT