Breastmilk secrets: Mom's weight may shape Baby's future
NCT ID NCT07457515
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
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About 165 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Feb 2026
An estimate. Start dates often move.
- Expected to finish
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Sep 2029
An estimate. End dates often move.
- Lead sponsor
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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
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19 years and older
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
4 sites in 2 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Department of Human Nutrition, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS)
Warsaw, Masovian Voivodeship, 02-776, Poland
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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
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National Institute of Public Health NIH - National Research Institute
Warsaw, Masovian Voivodeship, 00-791, Poland
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Wroclaw Medical University
Wroclaw, Lower Silesian Voivodeship, 50-367, Poland
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