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Dark chocolate vs. white chocolate: which is better for your heart?

NCT ID NCT06808282

Disease control Sponsor: San Diego State University 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study looks at whether eating dark chocolate regularly can improve key heart health markers like blood pressure, blood flow, and cholesterol. Researchers at San Diego State University are comparing dark chocolate, bloomed dark chocolate, and white chocolate in 45 generally healthy adults. The goal is to see if the antioxidants in dark chocolate offer real benefits for cardiovascular disease prevention.

What this could mean

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

Active substance
dark chocolate
What this could lead to
If it works, this could suggest that eating dark chocolate regularly helps lower blood pressure and improve cholesterol, pointing toward a simple dietary way to support heart health.
What could go wrong
This is a small, early study in only 45 healthy people, so results may not apply to everyone. Also, white chocolate is used as a comparison, and any benefits might be small or not last long.

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 45 people

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

Started

Apr 2011

Expected to finish

Dec 2026

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

21 to 60 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: * Generally healthy subjects Exclusion Criteria: * Smoker * Pregnant woman * Lactose intolerance * Required dietary supplement use * Required medication of metabolic disorders * Allergy to cacao

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder

As listed by the trial registrant

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

Cardiovascular diseases

Contacts and locations

Locations

  • San Diego State University

    San Diego, California, 92182, United States

More trials for these conditions

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