Walnuts

DIETARY_SUPPLEMENT20 trials

Sponsors

Christos Mantzoros, University of California, Davis, Loma Linda University, University of California, Los Angeles, Ludwig-Maximilians - University of Munich

Conditions

Abdominal ObesityAge Related Cognitive DeclineAge Related Macular DegenerationAgingAsthenozoospermiaBrain Insulin SensitivityBrain Vascular FunctionCardiovascular Disease

Phase 1

Effects of California Walnuts on Vascular Function in Postmenopausal Women

CompletedNCT01072864

University of California, DavisCardiovascular Diseases

Start: 2010-06-30End: 2010-09-30Updated: 2010-11-01

Effects of the Consumption of California Walnuts on Cardiovascular Health

CompletedNCT01235390

University of California, DavisCardiovascular Health, Immune Function

Start: 2010-10-31End: 2012-06-30Updated: 2013-11-04

Walnuts to Achieve Lasting NUTrition to Prevent Diabetes

CompletedNCT03334175

University of California, San FranciscoOverweight and Obesity, PreDiabetes

Start: 2018-05-21End: 2019-08-05Updated: 2020-09-02

Phase 2

WALNUTS for POWER: Polyphenols, Omega-3 Fatty Acids, Weight Loss, and EneRgy

RecruitingNCT03824652

Stephen FreedlandProstate Cancer

Start: 2019-04-22End: 2027-06-01Target: 50Updated: 2026-02-04

Unknown Phase

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

CompletedNCT00525629

Christos MantzorosCardiovascular Disease, Metabolic Syndrome, Type 2 Diabetes

Start: 2007-02-28End: 2008-12-31Updated: 2017-12-15

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

CompletedNCT00579904

University of California, DavisInsulin Resistance, Polycystic Ovary Syndrome

Start: 2006-04-30End: 2008-07-31Updated: 2017-04-24

Walnuts and Healthy Aging

CompletedNCT01634841

Loma Linda UniversityAge Related Cognitive Decline, Age Related Macular Degeneration

Start: 2012-04-30End: 2016-05-31Updated: 2021-06-24

Effect of Walnuts on Sperm Parameters and Male Fertility

CompletedNCT01954498

University of California, Los AngelesAsthenozoospermia, Fertility, Oligozoospermia +1

Start: 2014-05-01End: 2020-03-01Updated: 2026-03-13

The Metabolic Effect of Walnuts in Healthy Subjects

CompletedNCT02329067

Ludwig-Maximilians - University of MunichLipid Metabolism Disorders

Start: 2014-12-31End: 2017-07-31Updated: 2017-08-29

Nuts and Extra Virgin Olive Oil Pilot Study

CompletedNCT02831803

Wake Forest University Health SciencesHypertension

Start: 2014-10-31End: 2016-01-31Updated: 2018-08-01

Genotype, Metabotype and Diet in a Cohort of Children and Adolescents From the Southeast of Spain.

CompletedNCT03318042

National Research Council, SpainGenotype, Metabotype and Dietary Habits

Start: 2016-02-01End: 2016-11-02Updated: 2017-10-24

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

CompletedNCT04066816

UConn HealthColon Cancer, Colo-rectal Cancer, Diet Habit

Start: 2019-05-20End: 2021-04-08Updated: 2021-11-26

Analysis of Microbiota Variations in Industry Workers Working Different Shifts and Impact of a Nutritional Intervention

Sophie Bucher Della TorreDysbiosis

Start: 2021-04-12End: 2022-09-30Target: 18Updated: 2022-05-16

Walnuts and Colon Health

RecruitingNCT05195970

UConn HealthColorectal Cancer, Diet Habit

Start: 2022-01-24End: 2026-12-31Target: 200Updated: 2025-03-18

Response of Cardiometabolic Biomarkers and Gut Microbiota to Walnut Consumption

Active, not recruitingNCT05321277

University of California, DavisCardiovascular Diseases

Start: 2022-04-19End: 2026-08-01Updated: 2026-02-10

Walnut Consumption and Gut Microbiota

University of Illinois at Urbana-ChampaignInflammation, Obesity

Start: 2022-06-01End: 2024-07-31Updated: 2023-06-18

Walnut and Immunity Study

CompletedNCT05915390

Loma Linda UniversityImmune Response, Upper Respiratory Tract Infection

Start: 2023-06-27End: 2023-12-18Updated: 2024-10-02

Essential Fats For Enhancing Cognitive Thinking (EFFECT) Study

RecruitingNCT06223672

Ohio State UniversityCognitive Decline, Cognitive Impairment

Start: 2024-02-07End: 2026-05-31Target: 88Updated: 2025-08-08

Effect of Walnuts on Cognitive Function and Gut Microbiome in Older Adults

RecruitingNCT06942351

Oregon State UniversityAging, Inflammation Biomarkers

Start: 2025-06-09End: 2029-05-31Target: 80Updated: 2025-06-19

Long-Term Effects of Walnut Consumption on Brain Function

Not yet recruitingNCT07422220

Maastricht University Medical CenterAbdominal Obesity, Brain Insulin Sensitivity, Brain Vascular Function +6

Start: 2026-02-01End: 2027-08-01Target: 55Updated: 2026-02-19

Related Papers

Effects of Walnuts on Postprandial Cognitive Function in Adults With Subjective Cognitive Impairment: Protocol for a Randomized Crossover Trial.

2025-12-19

A Walnut-Enriched Diet for 2 Years Changes the Serum Oxylipin Profile in Healthy Older Persons.

2023-12-091 citations

Effect of Walnut Supplementation on Dietary Polyphenol Intake and Urinary Polyphenol Excretion in the Walnuts and Healthy Aging Study

Nutrients2023-03-023 citations

Effect of a 2-year diet intervention with walnuts on cognitive decline. The Walnuts And Healthy Aging (WAHA) study: a randomized controlled trial.

2020-03-0172 citations

Effect of a Walnut Diet on Office and 24-Hour Ambulatory Blood Pressure in Elderly Individuals

Hypertension2019-03-1848 citations

The red blood cell proportion of arachidonic acid relates to shorter leukocyte telomeres in Mediterranean elders: A secondary analysis of a randomized controlled trial.

2018-02-1714 citations

The Walnuts and Healthy Aging Study (WAHA): Protocol for a Nutritional Intervention Trial with Walnuts on Brain Aging

Frontiers in Aging Neuroscience2017-01-1080 citations