Baby gut study: what you feed your infant shapes their bones
NCT ID NCT05160675
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study followed 2,760 healthy infants from birth to age 3 to understand how diet and gut bacteria influence bone development. Researchers tracked what babies ate, measured their gut microbes, and checked bone strength using ultrasound. The goal was to learn how early nutrition sets the stage for lifelong bone health.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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2,760 people
The number who actually took part.
- Started
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Sep 2021
- Finished
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Sep 2025
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Group 1: 690 healthy infants and their mother followed from birth to 12 months Group 2: 690 healthy infants and their mother followed from 6 months to 3 years of age
- Ages
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0 days to 6 months
- Sex
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Anyone
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: * It is important to carefully consider whether a subject is suitable for enrollment into this observational study. Fulfillment of the inclusion and exclusion criteria for each subject will be documented by a qualified member of the investigative staff before any subject is enrolled. Healthy infants who fulfill all the following inclusion criteria will be included: 1. Having obtained his/her parents' (or his/her legally accepted representative's \[LAR's\]) written informed consent and having evidence of personally signed and dated informed consent document indicating that the subject's parents/LAR have been informed of all pertinent aspects of the study. 2. Subject's parent(s)/LAR is of legal age of consent, is willing and able to fulfill the requirements of the study protocol. 3. For group 1, healthy infants aged ≤ 10 days after birth (date of birth = Day 0). For group 2, healthy infants with maximum age of 6 months 4. Full-term gestational birth (≥ 37 and ≤ 42 weeks). 5. Subject's parent(s)/LAR is able to be contacted directly by telephone throughout the study. 6. Both parents registered have a fixed work and / or residence within their jurisdiction. Exclusion Criteria: 1. Complicated pregnancy (e.g., preeclampsia, gestational diabetes, bowel disease) as assessed by medical interview/ medical record when available 2. Infant's parents/LAR not willing and/or not able to comply with scheduled visits and the requirements of the study protocol 3. Currently participating or having participated in another clinical trial within 4 weeks prior to trial start.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Tianjin Women and Children Health Center,
Tianjin, China
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