Clinical Trial

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

Active, Not Recruiting
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Summary
The purpose of this study is to examine the impact of daily consumption of walnuts for 12 weeks on cognitive function, markers of inflammation and oxidative stress, and the gut microbiome in healthy adults age 55 years and older.
Protocol Amendment History 3 changes
critical Enrollment closed, study ongoing 2026-08-08
critical Primary endpoint(s) modified 2026-08-08
notable Enrollment increased: 80 -> 90 participants 2026-08-08
Trial Details
NCT Number NCT06942351
Lead Sponsor Oregon State University
Collaborators: California Walnut Commission
Conditions Aging, Inflammation Biomarkers
Enrollment 90 participants
Start Date 2025-06-09
Primary Completion 2028-12 (estimated)
Study Completion 2029-05 (estimated)
Updated on ClinicalTrials.gov 2026-08-07