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Cranberry juice may boost brainpower during multitasking, study hints

NCT ID NCT06066619

Symptom relief Sponsor: University of Florida 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 This study
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 02, 2026 · Updated 1 time

Summary

This study looks at whether drinking cranberry juice for 70 days can improve thinking, motor accuracy, and reduce stress in healthy adults aged 30-55 who often multitask. Participants will be randomly assigned to one of two cranberry juices or a placebo. The goal is to see if the juice's natural compounds can help the brain handle intense multitasking better.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
cranberry juice
What this could lead to
If it works, this could point toward a simple dietary way to help adults think more clearly and feel less stressed during busy multitasking.
What could go wrong
This trial is suspended, so results may never come. It is a small, early-stage study in healthy people, so benefits may not apply to everyone or be dramatic.

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

About 126 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2024

Expected to finish

Jun 2028

An estimate. End dates often move.

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

30 to 55 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Weight ≥110 pounds; * Age 30-55; * BMI 18.9-29.9 kg/m\^2; * Education level high school and above Exclusion Criteria: 1. Heavy caffeine user (\>300 mg caffeine/day or more than 2 cups of coffee/day); 2. Alcohol consumption (\>3 alcohol/week); 3. Smoking (≥10 years); 4. Taking cannabis products; 5. Uncontrolled hypertension; 6. Clinically diagnosed illnesses, such as diabetes, cardiovascular disease, neurological disorders, and mental diseases; 7. Taking medications (antibiotics, etc.) that may influence study outcomes; 8. Taking vitamin/mineral supplements and are not willing to stop for the duration of the study; 9. Have specific dietary restriction (prevent from consuming the standardized breakfast or dinner sandwiches); 10. Inability to perform multitasking; 11. Inability to do blood collection on arm; 12. Inability to being video recorded while performing multitasking; 13. Inability to comply with dietary restrictions for the entire duration of the study; 14. Beck's depression inventory score of ≥21 during screening; 15. Beck's anxiety inventory score ≥21 during screening; 16. Severe suicidal tendencies (≥2); 17. Having seasonal depression; 18. Pregnancy; 19. Breast-feeding; 20. Female participants will do four pregnancy tests and their menstruation cycle need to be recorded. Female participants who do not wish to do pregnancy tests or record their menstruation cycle will be excluded.

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Conditions

The condition(s) this trial relates to.

Fractures, Stress Motor Activity Multitasking Behavior Neurobehavioral Manifestations Stress, Psychological

As listed by the trial registrant

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

Cognitive symptom Mental stress Motor activity Multitasking behavior Physiological stress Stress response

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

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  3. A doctor treating you

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Contacts and locations

Locations

  • Food/Environment Toxicology Lab

    Gainesville, Florida, 32608, United States

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