Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Cure My Disease

Don't miss your cure!

 Log in / Sign up

Walnut daily may clear Long-COVID brain fog, new study hints

NCT ID NCT07429903

Symptom relief Sponsor: University of California, Los Angeles Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether eating 2 ounces of walnuts every day for 12 weeks could improve memory and reduce brain fog in adults over 40 with Long-COVID. About 31 people took part, comparing walnut eaters to those getting usual care. The goal was to see if walnuts, which are rich in healthy fats and plant chemicals, can ease common Long-COVID symptoms like memory trouble and fatigue.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

31 people

The number who actually took part.

Started

Sep 2023

Finished

Jan 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

40 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Age 40 years and older History of confirmed SARS-CoV-2 infection Presence of long-COVID symptoms lasting longer than 12 weeks, including one or more of the following: * Cognitive complaints ("brain fog," memory, attention, or processing speed difficulties) * Fatigue * Mood symptoms (e.g., depression) Consumption of a low-polyphenol (Western) diet Adequate visual acuity and hearing to complete neuropsychological testing Screening laboratory results without clinically significant abnormalities that would interfere with study participation Ability and willingness to provide written informed consent Exclusion Criteria: Diagnosis of probable Alzheimer's disease or other dementia (e.g., vascular, Lewy body, frontotemporal) Other neurological or medical conditions that may cause cognitive impairment Evidence of Parkinson's disease based on motor examination Uncontrolled hypertension (systolic BP \>170 mmHg or diastolic BP \>100 mmHg) Allergy to walnuts Regular consumption of more than 5 oz of walnuts per week Current diagnosis of a major psychiatric disorder according to DSM-5 criteria Alcoholism or substance use disorder Any condition that, in the investigator's judgment, would make participation unsafe or interfere with study completion

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Brain fog are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

cognitive disorder long COVID-19 Mental Fatigue post-COVID-19 disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Brain fog Cognition Long COVID MEMORY

Contacts and locations

Locations

  • UCLA Center for Human Nutrition

    Los Angeles, California, 90025, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.