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ClinicalTrials.gov public records Last synced Oct 26, 2026, 4:58 AM EDT

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Showing 289–312 of 651 matching trials from the live ClinicalTrials.gov search.
Conditions
Gastrointestinal Tolerability, Appetite, Amino Acids
Interventions
Protein Powder, Control Protein Powder
Dietary Supplement
Lead sponsor
Midwest Center for Metabolic and Cardiovascular Research
Other
Eligibility
25 Years to 54 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Miami Gardens, Florida
Recruiting Not applicable Interventional Accepts healthy volunteers

Trial Evaluating Nutritional Fiber in Digestive Symptoms of Endometriosis

NCT07875062
Conditions
Endometriosis, Microbiome Dysbiosis, Gastrointestinal Symptoms
Interventions
Fiber, Placebo
Dietary Supplement
Lead sponsor
LOAM Science
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
San Francisco, California
Completed Not applicable Interventional Accepts healthy volunteers

Buck Institute Ketone Ester RCT

NCT05585762
Conditions
Tolerance, Safety Issues, Aging
Interventions
Ketone ester, Non-ketone placebo
Other
Lead sponsor
Buck Institute for Research on Aging
Other
Eligibility
65 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Novato, California
Conditions
Type 1 Diabetes
Interventions
Medtronic MiniMed Closed Loop (CL) System, Snacking
Device · Other
Lead sponsor
Yale University
Other
Eligibility
13 Years to 44 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Parkinson Disease, Idiopathic
Interventions
Amino acid supplement, Whey Protein Supplement, Isonitrogenous Placebo Supplement
Drug · Dietary Supplement
Lead sponsor
UConn Health
Other
Eligibility
55 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Farmington, Connecticut
Completed Not applicable Interventional Accepts healthy volunteers Results available

Promoting Gastrointestinal Health and Reducing Subclinical Inflammation in Obese Individuals

NCT02602496
Conditions
Obesity, Overweight
Interventions
Fruits and Vegetables, Whole Grain, Control
Other
Lead sponsor
University of Nebraska Lincoln
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Lincoln, Nebraska
Recruiting Phase 4 Interventional Accepts healthy volunteers

Effects of Energy Drinks on Cardiovascular Endpoints

NCT07212803
Conditions
Healthy Volunteers, Safety After Oral Intake
Interventions
Energy Drink A + Placebo Capsule, Placebo Drink + Moxifloxacin Capsule, Placebo Drink + Caffeine Capsule, Placebo Drink + Placebo Capsule, Energy Drink B, Control Product + Taurine, Control Product + Caffeine + Taurine, Lower Dose Energy Drink A
Dietary Supplement · Drug · Other
Lead sponsor
University of the Pacific
Other
Eligibility
18 Years to 40 Years
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Stockton, California
Conditions
Non-Alcoholic Fatty Liver Disease (NAFLD)
Interventions
Milk thistle (MT), Placebo, Lifestyle Modification, Fibroscan
Drug · Behavioral · Device
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
9 Years to 22 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Cleveland, Ohio
Conditions
Inflammatory Bowel Disease
Interventions
elemental diet (ED)
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
21 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Completed Not applicable Interventional Results available

Babies Living Safe and Smokefree

NCT02602288
Conditions
Second Hand Tobacco Smoke, Nicotine Dependence
Interventions
Ask, Advise, Refer, Telebased tobacco counseling, Telebased nutrition counseling, Mobile phone smoking cessation application, Mobile phone nutrition application, Nicotine polacrilex
Behavioral · Device · Drug
Lead sponsor
Temple University
Other
Eligibility
18 Years and older · Female only
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Philadelphia, Pennsylvania
Completed Not applicable Interventional Accepts healthy volunteers

Optimizing Chronic Pain Treatment With Enhanced Neuroplastic Responsiveness

NCT02681081
Conditions
Pain, Osteoarthritis
Interventions
Glucose Administration, Intermittent Fasting, Control
Other
Lead sponsor
University of Florida
Other
Eligibility
50 Years to 85 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Healthy
Interventions
Controlled diet
Other
Lead sponsor
USDA Beltsville Human Nutrition Research Center
Federal
Eligibility
25 Years to 75 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Beltsville, Maryland
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Tocotrienols for Obesity of Postmenopausal Women

NCT03705845
Conditions
Obesity, Postmenopausal Women
Interventions
placebo softgel, DeltaGold® Tocotrienol 70%
Drug
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2027
U.S. locations
1
States / cities
Lubbock, Texas
Conditions
Diet Modification
Interventions
Controlled healthy vegetarian diet, Controlled beef diet
Other
Lead sponsor
Purdue University
Other
Eligibility
30 Years to 69 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
West Lafayette, Indiana
Completed Not applicable Interventional Accepts healthy volunteers

Novel Metabolites of Beta-Carotene and Lycopene

NCT02550483
Conditions
Healthy
Interventions
Base diet + high beta-carotene tomato juice, Base diet + high lycopene tomato juice, Base diet + placebo beverage
Other
Lead sponsor
USDA Beltsville Human Nutrition Research Center
Federal
Eligibility
21 Years to 75 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Beltsville, Maryland
Conditions
Lung Cancer Prevention
Interventions
green tea, Polyphenon E, placebo
Dietary Supplement · Drug · Other
Lead sponsor
Sherry Chow
Other
Eligibility
40 Years to 80 Years
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
3
States / cities
Tucson, Arizona
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Fasting-Mimicking Diet on Skin Health

NCT05564624
Conditions
Skin
Interventions
Fasting mimicking diet (FMD)
Other
Lead sponsor
L-Nutra Inc
Industry
Eligibility
35 Years to 60 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Richardson, Texas
Conditions
Hemodynamic Effects of Energy Drink, Electrocardiograph Effects of Energy Drinks
Interventions
Energy Drink, Active Control
Dietary Supplement
Lead sponsor
David Grant U.S. Air Force Medical Center
Federal
Eligibility
18 Years to 40 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Travis Air Force Base, California
Completed Not applicable Interventional Accepts healthy volunteers

Comparing Front-of-package Nutrient Labels

NCT06903403
Conditions
Nutrition Knowledge, Perceptions, Dietary Behavior
Interventions
Front-of-package label
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 99 Years
Enrollment
15,582 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Davis, California
Completed Not applicable Interventional

Green Tea in Breast Cancer Patients

NCT00949923
Conditions
Incident Breast Cancer
Interventions
tea capsule
Dietary Supplement
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older · Female only
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Pre Diabetes
Interventions
Mango, Control Beverage
Other
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
20 Years to 60 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Polycystic Ovary Syndrome, Overweight and Obesity
Interventions
Weight loss intervention
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years to 42 Years · Female only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Kansas City, Kansas
Conditions
PCOS (Polycystic Ovary Syndrome), Obese Adolescents, Overweight (Without Type 2 Diabetes) With Weight-related Comorbidities, Overweight Adolescents, Irregular Menstrual Cycle, Irregular Menstrual Cycles, Hirsutism, Hyperandrogenism
Interventions
Beef+
Other
Lead sponsor
Texas A&M University
Other
Eligibility
11 Years to 17 Years · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
College Station, Texas
Completed Phase 2 Interventional Results available

18-Month Study of Memory Effects of Curcumin

NCT01383161
Conditions
Age-associated Cognitive Impairment, Mild Cognitive Impairment (MCI)
Interventions
Curcumin, Placebo
Drug · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
50 Years to 90 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Los Angeles, California