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Breastmilk secrets: Mom's weight may shape Baby's future

NCT ID NCT07457515

Knowledge-focused Sponsor: Warsaw University of Life Sciences 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study will follow 150 mothers and their babies for 6 months to see how a mother's weight and diet affect her breastmilk and her baby's growth. Researchers will measure mom's body fat, diet, and health markers, and analyze breastmilk for nutrients and immune factors. The goal is to understand how overweight or obesity in mothers might influence infant development through breastmilk.

What this could mean

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

What this could lead to
If successful, this study could help explain how a mother's weight and diet influence her baby's development through breastmilk, potentially guiding future health recommendations.
What could go wrong
This is an observational study, not a treatment trial, so it won't directly change care. Results may show associations but not prove cause and effect.

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.

Participants

About 165 people

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

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Sep 2029

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.

Who is studied

A group of 165 mother-infant dyads is planned to be recruited from a community sample. The study group will be recruited via advertisements on the Internet, social media, health facilities, and information distributed to midwives and lactation consultants. To reduce bias related to the lack of random selection and increase the quality of our results, the investigators will match participants by maternal age, infant sex, and sociodemographic status - factors potentially affecting exposures and outcomes measured in our study.

Ages

19 years and older

Sex

Female participants only

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: for mother: * at least 19 years, * plan of exclusively or predominantly breastfeeding for 6 months, * consent to a sampling of biological material and participate in all planned procedures (for both mother and infant), * willingness to finish the follow-up, * well-understanding of the Polish language (for non-Polish nationalities); for infants: * 1 month or less, * clinically healthy, * none or one formula feeding per day Exclusion Criteria: for mother: * type 1 or 2 diabetes diagnosed before pregnancy, * uncontrolled thyroid disease, * breastfeeding more than 1 child or being a milk donor, * tobacco/alcohol use during pregnancy or currently, * inability to express a sufficient amount of milk; for infants: * congenital disease, * birth from a multiple pregnancy, * preterm birth (\<37 Hbd).

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Conditions

The condition(s) this trial relates to.

Body Weight Breast Feeding Inflammation Obesity obesity disorder Overweight

As listed by the trial registrant

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

Adipokines Body composition Body weight Carotenoid status Fatty acid status Growth & development Human milk/breastfeeding Immunologic markers Infant body composition and metabolism Inflammation biomarkers Maternal cardiometabolic health Metabolomic profile Obesity & overweight Vitamin E

How to take part

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

  1. The places running it

    4 sites in 2 countries. 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

  • Department of Human Nutrition, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS)

    Warsaw, Masovian Voivodeship, 02-776, Poland

  • Food, Nutrition and Health, Uviversity of British Columbia; Affiliated Investigator, Healthy Starts, BC Children's Hospital Research Institute & Women's Health Research Institute

    Vancouver, British Columbia, V6T 1Z4, Canada

  • National Institute of Public Health NIH - National Research Institute

    Warsaw, Masovian Voivodeship, 00-791, Poland

  • Wroclaw Medical University

    Wroclaw, Lower Silesian Voivodeship, 50-367, Poland

More trials for these conditions

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