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Showing 1–24 of 142 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Cocoa Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Pre- and Post-restriction Chocolate Candy Consumption

NCT02003950
View directory record Official record
Conditions
Investigate the Maladaptive Eating Behaviors of Normal Healthy Adults
Interventions
Snack Condition Specification
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 14, 2023 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Food Matrix Effect on Flavanol Absorption, Metabolism and Excretion: Methylxanthines

NCT03526107
View directory record Official record
Conditions
Healthy
Interventions
CF Control, CF-Theobromine, CF-Caffeine
Other
Lead sponsor
University of California, Davis
Other
Eligibility
25 Years to 60 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
2
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Oct 9, 2022 · Synced Sep 2, 2026, 10:28 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Pilot Laboratory Study Investigating How Physical Tasks and Hunger Affect Taste Perception

NCT01758302
View directory record Official record
Conditions
Food Consumption, Perseverance
Interventions
Simple physical task, Complex physical task, Cookies, Vegetables, No physical task
Behavioral · Other
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Dec 31, 2012 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cannabis Edibles Packaging Descriptors Experiment

NCT06171399
View directory record Official record
Conditions
Cannabis Use
Interventions
"All Natural" descriptor, "Gluten-free" descriptor, "Vegan" descriptor, "100% Organic" descriptor, "Handcrafted" descriptor, "Made with live resin" descriptor, "Fast-acting" descriptor, "Relax" descriptor, "Energy Boost" descriptor, No descriptor (control)
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 65 Years
Enrollment
2,521 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated May 8, 2025 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Preliminary Effect of Food Processing and Sweeteners on Glycemic and Metabolic Measures

NCT05658757
View directory record Official record
Conditions
Blood Sugar; High, Blood Pressure, Dietary Habits
Interventions
Regular sweetened commercial foods, Allulose sweetened commercial foods, Whole and minimally processed and sweetened foods
Other
Lead sponsor
University of California, Irvine
Other
Eligibility
20 Years to 99 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated May 2, 2023 · Synced Sep 2, 2026, 10:28 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Chicory Fiber Effect on Satiety and GI Tolerance

NCT04067362
View directory record Official record
Conditions
Diet, Healthy
Interventions
food containing dietary fiber
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 7, 2020 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Postprandial Monocyte Maturation and Vascular Dysfunction Following High-Fat Meals - Study 1

NCT03958734
View directory record Official record
Conditions
Cardiovascular Risk Factor, Lipemia
Interventions
High-fat meal
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 30 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 12, 2022 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Novel Food Product Containing Microbiota Accessible Carbohydrates on the Human Microbiome

NCT03058575
View directory record Official record
Conditions
Gut Microbiome
Interventions
Dietary MACs, Control
Dietary Supplement · Other
Lead sponsor
Access Business Group
Industry
Eligibility
40 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 22, 2018 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Daily Doses of Rice or Whey Protein on Resistance Training Adaptations

NCT04411173
View directory record Official record
Conditions
Hypertrophy
Interventions
Whey Protein
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 1, 2020 · Synced Sep 2, 2026, 10:28 AM EDT
Recruiting Phase 1 Interventional

Psilocybin Whole Mushroom for the Treatment of Obsessive-compulsive Disorder.

NCT07347405
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
Psilocybin 10 mg, Psilocybin 20 mg, Psilocybin 30 mg
Drug
Lead sponsor
Francisco A Moreno
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 2, 2026, 10:28 AM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Natural Heart Health Supplement Trial

NCT06671769
View directory record Official record
Conditions
Cholesterol, Cholesterol (total and HDL)
Interventions
Heart Health Supplement
Dietary Supplement
Lead sponsor
Efforia, Inc
Industry
Eligibility
21 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 3, 2024 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Buck Institute Ketone Ester RCT

NCT05585762
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 10, 2024 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional

Effect of Revival Soy on Fibromyalgia Pain

NCT00279942
View directory record Official record
Conditions
Fibromyalgia
Interventions
Soy, Placebo
Dietary Supplement · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 76 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 5, 2012 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cannabis Edibles Packaging Imagery Experiment

NCT06358144
View directory record Official record
Conditions
Cannabis Use
Interventions
Packaging imagery, No Imagery (Control)
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 65 Years
Enrollment
1,260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 7, 2025 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Whey Protein Supplementation in High School Athletes

NCT05589129
View directory record Official record
Conditions
Body Weight Changes, Athletic Performance, Recovery, Sleep
Interventions
Whey Protein Supplement, Carbohydrate Placebo Control
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
13 Years to 18 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 2, 2026, 10:28 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Black Forest Cocoa Flavanol Supplementation and Health Trial

NCT07747714
View directory record Official record
Conditions
Endothelial Function, Oxidative Stress, Inflamation, Vascular Health
Interventions
Cocoa Flavanol Supplement, Low-Flavanol Control Powder
Dietary Supplement
Lead sponsor
The Black Forest LLC
Industry
Eligibility
30 Years to 75 Years · Male only
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
2
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dietary Assessment Study Via Digital Images

NCT03267004
View directory record Official record
Conditions
Diet Habit
Interventions
Dietary Assessment of Meal A using images taken by Sony Smarteyeglass, Dietary Assessment of Meal B using Images taken by Sony Smarteyeglass
Device
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 7, 2025 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Soft Tissue Therapy and Exercise on Hamstring Tightness

NCT03651141
View directory record Official record
Conditions
Hamstring Tightness, Myofascial Pain, Musculoskeletal Pain
Interventions
Neurodynamic Sliding, Myofascial Decompression, Diathermy
Other
Lead sponsor
Oklahoma State University
Other
Eligibility
18 Years to 25 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Stillwater, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 30, 2018 · Synced Sep 2, 2026, 10:28 AM EDT
Terminated Phase 1 Interventional

Placebo Controlled Study of Fecal Microbiota Transplant (FMT) for a First or Second Episode of C. Difficile Infection in Adults Using a Frozen Encapsulated Inoculum

NCT02343328
View directory record Official record
Conditions
Clostridium Difficile
Interventions
Fecal Microbiota Transplant, Placebo
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 12, 2017 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Chewing Gum on a Computer Task and Liking Ratings of Ice Cream

NCT02198911
View directory record Official record
Conditions
Habituation
Interventions
NO GUM, MCC (Mint Chocolate Chip gum), C (Cinnamon gum)
Other
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2025
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Complementary and Alternative Medicine for Urological Symptoms(CAMUS)

NCT00603304
View directory record Official record
Conditions
Urological
Interventions
Saw Palmetto - first 24 weeks, Placebo - first 24 weeks, Saw Palmetto - weeks 24 - 48, Placebo - weeks 24 - 48, Saw Palmetto - weeks 48 - 72, Placebo - weeks 48 - 72
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
45 Years and older · Male only
Enrollment
369 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
10
States / cities
Oakland, California • Aurora, Colorado • New Haven, Connecticut + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2012 · Synced Sep 2, 2026, 10:28 AM EDT
Terminated Not applicable Interventional Results available

The Effect of High Antioxidant Cacao on Behaviors in Children With Autism Spectrum Disorder

NCT03195465
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
Dark Chocolate
Dietary Supplement
Lead sponsor
Loma Linda University
Other
Eligibility
4 Years to 18 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Jun 1, 2021 · Synced Sep 2, 2026, 10:28 AM EDT
Not listed Not applicable Interventional

Metabolomics Initiative: Mediterranean-amplified vs Habitual Western Diet on Food Signatures, Health, and Microbiome

NCT05500976
View directory record Official record
Conditions
Dietary Habits
Interventions
Semi-controlled dietary intervention - Western, Semi-controlled dietary intervention - MiniMed
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
30 Years to 69 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 26, 2024 · Synced Sep 2, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Intake-dependent Effect of Cocoa Flavanol Absorption, Metabolism and Excretion in Humans

NCT03201822
View directory record Official record
Conditions
Healthy
Interventions
100 mg of Cocoa Flavanols/70 kg BW, 200 mg of Cocoa Flavanols/70 kg BW, 400 mg of Cocoa Flavanols/70 kg BW, 1000 mg of Cocoa Flavanols/70 kg BW
Other
Lead sponsor
University of California, Davis
Other
Eligibility
25 Years to 40 Years · Male only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jun 27, 2017 · Synced Sep 2, 2026, 10:28 AM EDT