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Whole milk vs. skim: which is healthier for kids?

NCT ID NCT05464186

Disease control Sponsor: Boston Children's Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing whether whole milk or nonfat milk is better for body composition and health in 200 children aged 9-12 who have a higher BMI. Families receive weekly milk deliveries and monthly check-ins. The goal is to see which milk type helps reduce fat mass and improve markers for diabetes and heart disease.

What this could mean

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

Active substance
milk (whole or nonfat)
What this could lead to
If it works, this could show which type of milk is better for managing weight and reducing risks of obesity, diabetes, and heart disease in children.
What could go wrong
This is a behavioral study with no blinding, so results may be influenced by other diet or lifestyle factors. It is not a treatment for any disease.

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 200 people

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

Started

Dec 2022

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

9 to 12 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: * Aged 9 to 12 years * BMI ≥75th percentile for sex and age * Residence in the Greater Boston catchment area Exclusion Criteria: * Aversion to nonfat or whole milk * Physician diagnosis of major medical illness, eating disorder, or milk allergy (lactose intolerance not exclusionary as lactase treated milk can be provided) * Plans to move away from the Greater Boston catchment area during the study period * Plans to be away from home for ≥5 weeks during the study period (e.g., extended summer vacation) * Change in body weight exceeding 10% during prior year * Recent adherence to a special diet * Chronic use of any medication or dietary supplement that could affect study outcomes * Another member of the family (first degree relative) or household participating in the study

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder diabetes mellitus Obesity obesity disorder

As listed by the trial registrant

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

Cardiovascular diseases Diabetes Obesity

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

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

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • New Balance Foundation Obesity Prevention Center

    RECRUITING

    Boston, Massachusetts, 02115, United States

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