🏛️ Verified NIH Record • Updated 2026-08-04
Effect of Walnuts on Cognitive Function and Gut Microbiome in Older Adults (NCT06942351)
🔵 Active, Not Recruiting Observational / Diagnostic 📋 Clinical Research Protocol Sponsor: Oregon State University
🩺 Plain-English Summary (8th-Grade Level)
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.
Who can join: Review the eligibility criteria below.
Location: Oregon State University — Corvallis, Oregon
Age range: 55 Years
🧪 Interventions in This Study
- Walnuts (OTHER)
- Crackers (OTHER)
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (1 Sites)
- Oregon State University — Corvallis, Oregon
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
More studies in Aging
- A Pilot Study on Reverse Aging (The REVERSE Study) — Cincinnati, Ohio
- Feasibility of Home-based tES for Older Adults at Risk of Falling — Roslindale, Massachusetts
- Heat, Microvascular Function and Aging — Milwaukee, Wisconsin
- Protein Quantity and Quality in Older Subjects — Hamilton, Ontario
- Targeting Oxidative Stress to Prevent Vascular and Skeletal Muscle Dysfunction During Disuse — Salt Lake City, Utah
- Effect of a Daily Supplement on Plasma PAI-1 Levels — Los Angeles, California
Explore by condition: All Aging clinical trials
💡 How to Participate
- Check the checklist above to see if you may qualify.
- Review the official NIH record below to find the coordinating site.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.