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ClinicalTrials.gov public records Last synced Sep 19, 2026, 12:48 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Conditions
Diabetes Mellitus, Type 2, PreDiabetes
Interventions
Mediterranean Diet (Med-Plus), Well-Formulated Ketogenic Diet (WFKD)
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Stanford, California
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
Completed Not applicable Interventional Accepts healthy volunteers

SWAP-MEAT With Athletes for MC-URC: Three Diets on Athletic Performance

NCT06014307
Conditions
Health Behavior
Interventions
Diet order: PBMA, Animal, Diet order: Animal, PBMA
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 35 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
4
States / cities
Los Angeles, California • Stanford, California • New Brunswick, New Jersey + 1 more
Conditions
Painful Diabetic Neuropathy (PDN), Peripheral Neuropathy With Type 2 Diabetes, Vegan Diet
Interventions
Diet, Medical management
Other
Lead sponsor
AdventHealth
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Hendersonville, North Carolina
Recruiting Not applicable Interventional Accepts healthy volunteers

The Sleep2BWell Trial

NCT06565104
Conditions
Blood Pressure, Sleep Health, Diet, Healthy, Physical Activity, Weight Loss
Interventions
Multidimensional Sleep Health Sessions, Healthy Diet Sessions, Physical Activity Sessions
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
20 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
New York, New York
Conditions
Obesity, Hypercholesterolemia, Cardiovascular Disease
Interventions
Plant-Based Diet, American Heart Association Diet, Mediterranean Diet
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
9 Years to 18 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Protein-Distinct Macronutrient-Equivalent Diet 2

NCT05581953
Conditions
Healthy Aging
Interventions
Omnivorous, No meat
Other
Lead sponsor
South Dakota State University
Other
Eligibility
65 Years and older
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Brookings, South Dakota
Conditions
Erectile Dysfunction
Interventions
Animal-based meal, Plant-based meat meal
Other
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 32 Years · Male only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
The Bronx, New York
Conditions
Ulcerative Colitis
Interventions
Specific Carbohydrate Diet, Mediterranean Diet
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers

Nutrition Interventions for Cognitive Enhancement

NCT03841539
Conditions
Alzheimer Disease
Interventions
Mediterranean Diet, Study Supplement, Low-fat Diet
Behavioral · Dietary Supplement
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
65 Years and older
Enrollment
209 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Kansas City, Kansas
Conditions
Diabetic Neuropathy
Interventions
Vegan diet and vitamin B12 supplement, Vitamin B12 supplement
Other · Dietary Supplement
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Completed Not applicable Interventional Accepts healthy volunteers

Documentary to Encourage Plant-based Eating

NCT04507087
Conditions
Eating Behavior
Interventions
Documentary, Control
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
650 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Palo Alto, California
Conditions
Protein Metabolism
Interventions
Beef, Tofu, Placebo
Other
Lead sponsor
Texas A&M University
Other
Eligibility
65 Years to 95 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
College Station, Texas
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Lean Beef Consumption on Cardiometabolic Health and Gut Microbiome

NCT06433115
Conditions
Diet Intervention
Interventions
Lean (≥90%) Grass-Fed Beef, Lean (≥90%) Grain-Fed Beef, Plant-Based Meat
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 45 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Columbia, Missouri
Completed Not applicable Interventional Accepts healthy volunteers

Worksite Nutrition Study

NCT00481897
Conditions
Overweight, Type 2 Diabetes
Interventions
low-fat, vegan diet
Behavioral
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years and older
Enrollment
113 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Conditions
Healthy
Interventions
Ground beef, Ground pork, Tofu, Beyond Meat
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 30 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Sacramento, California
Completed Not applicable Interventional Accepts healthy volunteers

Plant-Based Defaults

NCT06554743
Conditions
Choice Behavior, Dietary Habits
Interventions
Default Veg, Default Meat
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
18 Years and older
Enrollment
365 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Phoenix, Arizona
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of Beef on Muscle Fatigue in Older Adults

NCT05860088
Conditions
Muscle Weakness, Muscle; Fatigue, Heart, Older Adults
Interventions
Beef Diet, Vegetarian Diet
Other
Lead sponsor
Indiana University
Other
Eligibility
60 Years to 85 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Bloomington, Indiana
Conditions
Ventral Hernia, Panniculus, Abdominoplasty, Flap Reconstruction
Interventions
Prehabilitation Program
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
19 Years and older
Enrollment
520 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
2
States / cities
San Jose, California • Stanford, California
Recruiting Not applicable Interventional

Healthy Lifestyles for Bipolar Disorder

NCT06188754
Conditions
Time Restricted Eating, Diet, Mediterranean
Interventions
Time restricted eating, Mediterranean diet
Behavioral
Lead sponsor
University of California, Berkeley
Other
Eligibility
18 Years to 65 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Berkeley, California
Conditions
Coronary Microvascular Dysfunction
Interventions
Polyphenol-Rich Plant-Based Diet
Other
Lead sponsor
Emory University
Other
Eligibility
45 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Atlanta, Georgia
Conditions
Obesity, Overweight
Interventions
Lifestyle Modification Intervention, Balanced Calorie Deficit Eating Plan, Ad Libitum Whole Food Plant-Based Eating Plan
Behavioral
Lead sponsor
Drexel University
Other
Eligibility
18 Years to 75 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Sarcopenia, Aging
Interventions
Exercise training
Other
Lead sponsor
Purdue University
Other
Eligibility
60 Years to 80 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
West Lafayette, Indiana
Completed Not applicable Interventional Accepts healthy volunteers

The Environmental Costs of Building Human Muscle

NCT06733857
Conditions
Greenhouse Gas Emissions, Water Use, Land Use
Interventions
VEG2, OMNI2
Behavioral
Lead sponsor
Game Changers Institute
Other
Eligibility
18 Years to 40 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Laguna Niguel, California