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ClinicalTrials.gov public records Last synced Oct 17, 2026, 9:12 PM EDT

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Showing 1–24 of 60 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Walnuts Clear all
Recruiting Not applicable Interventional

Essential Fats For Enhancing Cognitive Thinking (EFFECT) Study

NCT06223672
View directory record Official record
Conditions
Cognitive Decline, Cognitive Impairment
Interventions
Walnuts, Simply White Diary-free chocolate bar
Other
Lead sponsor
Ohio State University
Other
Eligibility
40 Years to 75 Years
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Ellagic Acid, Urolithin and Colonic Microbial Communities Affected by Walnut Consumption

NCT04066816
View directory record Official record
Conditions
Colo-rectal Cancer, Colon Cancer, Diet Habit
Interventions
Walnuts
Other
Lead sponsor
UConn Health
Other
Eligibility
50 Years to 65 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 26, 2021 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Metabolism, Exercise and Nutrition at UCSD (MENU Study)

NCT01424007
View directory record Official record
Conditions
Obese, Nondiabetic
Interventions
Weight loss
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years and older · Female only
Enrollment
245 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 5, 2019 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Metabolic Effects of Short-term Walnut Consumption in Subjects With the Metabolic Syndrome

NCT00525629
View directory record Official record
Conditions
Metabolic Syndrome, Type 2 Diabetes, Cardiovascular Disease
Interventions
Walnuts, Control
Dietary Supplement
Lead sponsor
Christos Mantzoros
Other
Eligibility
40 Years to 75 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 15, 2017 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional

A Mediterranean Diet Nutrition Education Program for the Reduction of Cardiovascular Disease Risk in the Southeastern U.S.

NCT03683134
View directory record Official record
Conditions
Cardiovascular Diseases, Cardiovascular Risk Factor, Obesity
Interventions
Mediterranean diet, Olive oil and mixed nuts, American Heart Association
Behavioral · Dietary Supplement
Lead sponsor
Auburn University
Other
Eligibility
19 Years and older
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 27, 2018 · Synced Oct 17, 2026, 9:12 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Walnut Consumption and Diabetes Risk

NCT03224533
View directory record Official record
Conditions
Diabetes Mellitus
Interventions
Diabetes Outcome
Diagnostic Test
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 80 Years
Enrollment
34,121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 21, 2017 · Synced Oct 17, 2026, 9:12 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Mechanistic Effect of Walnut Consumption on Sleep Quality

NCT06430086
View directory record Official record
Conditions
Poor Sleep Quality
Interventions
Walnut consumption, HCHS consumption
Other
Lead sponsor
Columbia University
Other
Eligibility
45 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of California Walnuts on Vascular Function in Postmenopausal Women

NCT01072864
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Walnuts
Other
Lead sponsor
University of California, Davis
Other
Eligibility
50 Years to 70 Years · Female only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Nov 1, 2010 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Mediterranean Diet and Lactation Study: A Diet Study in Lactating Women

NCT01459991
View directory record Official record
Conditions
Breast Feeding
Interventions
Walnut, MyPyramid
Other
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
138 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 28, 2011 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Analysis of MicroBial Metabolites After Eating Refined Food

NCT04308473
View directory record Official record
Conditions
Dietary Habits
Interventions
Ultra-processed Food Meal, Whole Food Meal
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Oct 17, 2026, 9:12 PM EDT
Terminated Not applicable Interventional

Walnuts and Glucose Variability

NCT01787214
View directory record Official record
Conditions
Type-2 Diabetes
Interventions
Full dose, Half dose, Control
Dietary Supplement
Lead sponsor
Loma Linda University
Other
Eligibility
40 Years to 70 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Mar 18, 2014 · Synced Oct 17, 2026, 9:12 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Infancy to Toddlerhood: Early Nutrition & Tolerance (INTENT)

NCT04803981
View directory record Official record
Conditions
Diet Diversity, Infant Nutrition
Interventions
SpoonfulONE
Other
Lead sponsor
Before Brands, Inc
Industry
Eligibility
4 Months to 6 Months
Enrollment
1,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 13, 2021 · Synced Oct 17, 2026, 9:12 PM EDT
Recruiting Not applicable Interventional

Walnuts as an Infant Solid Food for Health

NCT07081698
View directory record Official record
Conditions
Gut -Microbiota, Inflammatory Markers, Infant Development
Interventions
Infant walnut intake
Other
Lead sponsor
Colorado State University
Other
Eligibility
5 Months to 5 Months
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Walnuts and Colon Health (The WellNut Trial)

NCT05195970
View directory record Official record
Conditions
Colorectal Cancer, Diet Habit
Interventions
Walnuts
Other
Lead sponsor
UConn Health
Other
Eligibility
39 Years to 75 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
2
States / cities
Farmington, Connecticut • New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 17, 2026, 9:12 PM EDT
Recruiting Phase 2 Interventional

Phase 2b Study of RPT904 as Monotherapy in Participants With IgE-Mediated Food Allergy

NCT07220811
View directory record Official record
Conditions
Ig-E Mediated Food Allergy
Interventions
RPT904, Placebo
Drug · Other
Lead sponsor
RAPT Therapeutics, Inc., a member of the GSK plc group of companies
Industry
Eligibility
12 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
22
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Palo Alto, California + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Walnut and Immunity Study

NCT05915390
View directory record Official record
Conditions
Immune Response, Upper Respiratory Tract Infection
Interventions
walnuts, Habitual diet
Dietary Supplement
Lead sponsor
Loma Linda University
Other
Eligibility
55 Years to 75 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Oct 2, 2024 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Postprandial Effects of Walnut Components Versus Whole Walnuts on Cardiovascular Disease (CVD) Risk Reduction

NCT00938340
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Walnut "meat", Walnut Oil, Walnut Skins, Whole walnut
Dietary Supplement
Lead sponsor
Penn State University
Other
Eligibility
21 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 21, 2023 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Walnuts to Achieve Lasting NUTrition to Prevent Diabetes

NCT03334175
View directory record Official record
Conditions
PreDiabetes, Overweight and Obesity
Interventions
Walnuts
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional

Effect of Walnuts on Sperm Parameters and Male Fertility

NCT01954498
View directory record Official record
Conditions
Oligozoospermia, Asthenozoospermia, Teratozoospermia, Fertility
Interventions
Walnuts, OTC multivitamin
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years and older · Male only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional

Effect of Daily Walnut Consumption on Memory in Subjects With Long-COVID

NCT07429903
View directory record Official record
Conditions
Long-COVID, Brain Fog, Cognition, Memory
Interventions
whole food - walnuts
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
40 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 24, 2026 · Synced Oct 17, 2026, 9:12 PM EDT
Active, not recruiting Not applicable Interventional

Response of Cardiometabolic Biomarkers and Gut Microbiota to Walnut Consumption

NCT05321277
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Walnuts, No-nut diet
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
45 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional

A Single Group Study to Evaluate the Efficacy of a Cosmetic Product Line on Acne Symptoms

NCT06122467
View directory record Official record
Conditions
Acne
Interventions
EQ Exfoliating Cleanser, EQ Gel, EQ Moisturizer
Other
Lead sponsor
Menning Labs
Industry
Eligibility
18 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Mar 20, 2024 · Synced Oct 17, 2026, 9:12 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mediterranean Diet for Post-menopausal Women: Effects on Bone Turnover

NCT01653275
View directory record Official record
Conditions
Osteoporosis, Postmenopausal Bone Loss
Interventions
Mediterranean Diet
Other
Lead sponsor
UConn Health
Other
Eligibility
65 Years and older · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated May 10, 2017 · Synced Oct 17, 2026, 9:12 PM EDT
Recruiting Not applicable Interventional

A Nutrition & Exercise Prehabilitation Intervention on Inflammatory Biomarkers in AI Cancer Patients

NCT06644560
View directory record Official record
Conditions
Cancer
Interventions
Prehabilitation Intervention
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Oct 17, 2026, 9:12 PM EDT