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ClinicalTrials.gov public records Last synced Oct 17, 2026, 9:53 PM EDT

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Showing 25–48 of 60 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Walnuts Clear all
Completed Not applicable Interventional

Walnut Ingestion in Adults at Risk for Diabetes: Effects on Body Composition, Diet Quality, and Cardiac Risk Measures

NCT02330848
View directory record Official record
Conditions
Diabetes
Interventions
Walnut Ad libitum diet, Walnut Calorie controlled
Dietary Supplement
Lead sponsor
Griffin Hospital
Other
Eligibility
25 Years to 75 Years
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Derby, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 26, 2020 · Synced Oct 17, 2026, 9:53 PM 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 27, 2024 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Activation of Brain Centers by Short-term Walnut Consumption in Obesity

NCT02673281
View directory record Official record
Conditions
Obesity
Interventions
Walnut shake, Placebo shake
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 22, 2023 · Synced Oct 17, 2026, 9:53 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

The Effects of an Evening Snack of Walnuts on Diet and Sleep Quality in Adolescents

NCT07862556
View directory record Official record
Conditions
Diet Quality, Sleep
Interventions
Walnuts, Control (usual diet)
Other
Lead sponsor
Penn State University
Other
Eligibility
13 Years to 17 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2028
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional

Effects of Walnuts on Endothelial Function in Overweight Adults With at Least One Factor of Metabolic Syndrome

NCT01413646
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
Walnut Supplementation, No walnut supplementation
Dietary Supplement
Lead sponsor
Griffin Hospital
Other
Eligibility
25 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Derby, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 2, 2019 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Mastication on Energy Release From Walnuts

NCT02927028
View directory record Official record
Conditions
Obesity
Interventions
Chewing
Other
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 60 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 12, 2023 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nuts and Olestra for Persistent Organic Pollutant Reduction (NO-POPs) Trial

NCT02675101
View directory record Official record
Conditions
Persistent Organic Pollutants, Endocrine Disrupting Chemicals, Endocrine Disruptor Effects
Interventions
Whole Nuts, Olestra: Fat Free Pringles, Vegetable Oil: Original Pringles
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
45 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 5, 2019 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Benefits of Walnuts for Male Reproductive Health

NCT01505140
View directory record Official record
Conditions
Infertility, Nutrition Disorders
Interventions
Whole walnuts
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 35 Years · Male only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 28, 2016 · Synced Oct 17, 2026, 9:53 PM EDT
Enrolling by invitation Not applicable Interventional

Mediterranean Diet Intervention Among Men at LBJ Hospital With Prostate Cancer

NCT06935097
View directory record Official record
Conditions
Prostate Cancer
Interventions
Mediterranean diet-based Intervention
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 17, 2026, 9:53 PM EDT
Recruiting Not applicable Interventional

Snacking Effects on the Brain Response to Foods and Satiety During Dieting

NCT07428187
View directory record Official record
Conditions
Overweight/Obesity
Interventions
Snack Type 1: Walnuts, Snack Type 2: Pretzels
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
25 Years to 45 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional

The Effects of Walnuts, Walnut-Oil, Almonds and Fish Oils on Glucose Homeostasis in Polycystic Ovary Syndrome

NCT00579904
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Insulin Resistance
Interventions
walnuts, almonds
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Mather, California
Source: ClinicalTrials.gov public record
Updated Apr 24, 2017 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Walnuts on Central Blood Pressure, Arterial Stiffness Indices, Lipoproteins, and Other CVD Risk Factors

NCT02210767
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Walnut Diet, Walnut Control Diet, Low ALA Diet
Other
Lead sponsor
Penn State University
Other
Eligibility
30 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 21, 2023 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional

Yeahhh Baby! Ointment on Hip and/or Knee Pain in Men and Women

NCT04764552
View directory record Official record
Conditions
Joint Pain
Interventions
Yeahhh Baby Ointment, Coconut oil ointment
Dietary Supplement · Other
Lead sponsor
University of Memphis
Other
Eligibility
35 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 29, 2021 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional

Walnut Consumption, Endothelial Function, and Biomarkers

NCT01884363
View directory record Official record
Conditions
Coronary Heart Disease, Type 2 Diabetes
Interventions
Once ounce per day of walnuts
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
30 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 18, 2016 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Walnut Intake on Vascular Function and Metabolism

NCT03900403
View directory record Official record
Conditions
Overweight and Obesity, Endothelial Dysfunction, Cardiovascular Risk Factor
Interventions
Walnut Intake
Other
Lead sponsor
University of California, Davis
Other
Eligibility
45 Years to 65 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Aug 31, 2023 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional

Snacking, Satiety &Weight: A Randomized, Controlled Trial

NCT02050165
View directory record Official record
Conditions
Obesity
Interventions
KIND Bars, Typical American Snack
Dietary Supplement
Lead sponsor
Griffin Hospital
Other
Eligibility
25 Years to 75 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Derby, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 26, 2020 · Synced Oct 17, 2026, 9:53 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Response of Gut Microbiota and Cardiometabolic Biomarkers to Consumption of Walnuts

NCT04307628
View directory record Official record
Conditions
Healthy, Normal Weight, Overweight, Obese
Interventions
Walnut, Nut-Free
Other
Lead sponsor
University of California, Davis
Other
Eligibility
20 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 17, 2026, 9:53 PM EDT
Withdrawn Not applicable Interventional

Walnut Oral Immunotherapy for Tree Nut Allergy

NCT01918657
View directory record Official record
Conditions
Peanut Allergy
Interventions
walnut powder
Drug
Lead sponsor
Jonathan Spergel
Other
Eligibility
6 Years to 21 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 10, 2014 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Lean Living Study

NCT02501889
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Walnut-rich weight loss diet, Standard weight loss diet
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Oct 26, 2017 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional

Effects of Walnut Consumption on Endothelial Function in Type 2 Diabetes

NCT00901043
View directory record Official record
Conditions
DIABETES MELLITUS TYPE 2
Interventions
Walnut supplementation, Ad lib diet
Dietary Supplement
Lead sponsor
Griffin Hospital
Other
Eligibility
35 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Derby, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 26, 2020 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Walnuts on Antioxidant Capacity and Nutritional Status in Humans

NCT00626691
View directory record Official record
Conditions
Healthy
Interventions
Walnut consumption
Behavioral
Lead sponsor
Tufts University
Other
Eligibility
50 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 19, 2009 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Introduction and Maintenance of Still Eating Protein Blends in Support of Infant Nutritional Goals

NCT03667118
View directory record Official record
Conditions
Food Allergy
Interventions
Food Supplement
Dietary Supplement
Lead sponsor
Northwestern University
Other
Eligibility
5 Months to 11 Months
Enrollment
705 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 13, 2019 · Synced Oct 17, 2026, 9:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Black Walnuts and Health

NCT04849949
View directory record Official record
Conditions
Healthy
Interventions
Control, Black walnut, English walnut
Other
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 45 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 20, 2021 · Synced Oct 17, 2026, 9:53 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Walnut Consumption and Gut Microbiota

NCT05441748
View directory record Official record
Conditions
Obesity, Inflammation
Interventions
Walnuts, Walnut Oil, Control
Other
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
25 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Urbana, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 18, 2023 · Synced Oct 17, 2026, 9:53 PM EDT