Walnut wonder: daily snack may clear Long-COVID brain fog

NCT ID NCT07429903

First seen Feb 26, 2026 · Last updated May 08, 2026 · Updated 13 times

Summary

This study tested whether eating 2 ounces of walnuts every day for 12 weeks could improve memory and thinking problems in adults over 40 with Long-COVID. 31 people with ongoing brain fog, fatigue, or mood issues took part. The goal was to see if walnuts, which are rich in healthy fats, could ease these lingering symptoms.

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Contacts and locations

Locations

  • UCLA Center for Human Nutrition

    Los Angeles, California, 90025, United States

Conditions

Explore the condition pages connected to this study.