Does Mom's workout change her milk? new study investigates

NCT ID NCT05745922

Completed Knowledge-focused Sponsor: Norwegian University of Science and Technology Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at how a single session of moderate or high intensity exercise changes the makeup of breast milk in women with overweight or obesity. Thirty-two breastfeeding mothers came to the lab on three separate days: two exercise days and one rest day. Researchers collected milk samples before, right after, and hours later to measure nutrients, hormones, and other compounds. The goal is to understand if exercise alters breast milk composition in this group.

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 results show exercise changes breast milk composition, it could help guide exercise recommendations for breastfeeding mothers with overweight or obesity.
What could go wrong: This is a small, completed study (32 people) looking at short-term effects only. It does not test health outcomes for mothers or babies, so any benefits are speculative.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Breast Milk Expression Motor Activity Obesity obesity disorder Overweight

As listed by the trial registrant

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

BREAST MILK COLLECTION OVERWEIGHT AND OBESITY

Contacts and locations

Locations

Department of circulation and medical imaging , NTNU

Trondheim, 7491, Norway

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