Maternal probiotic intake during pregnancy and exclusive colostrum breastfeeding are associated with a reduced risk of neonatal jaundice, highlighting these as important modifiable preventive factors.
Key Findings
Results
Probiotic intake during pregnancy was associated with a significantly reduced odds of neonatal jaundice compared to participants who never used probiotics.
Adjusted odds ratio (AOR) of 0.78 (95% CI: 0.61, 0.98), P = 0.041
Analysis included 2596 healthy controls and 433 NJ cases with complete data from the CHILD cohort
Multivariable logistic regression was used with adjustment for confounders
The CHILD cohort was a prospective birth cohort that recruited 3624 mothers and 3542 paired infants
Results
Neonates with exclusive colostrum feeding had a significantly lower incidence of neonatal jaundice compared to other feeding modes.
AOR 0.34 (95% CI: 0.27, 0.44), P < 0.001
Feeding modes compared included exclusive colostrum, formula-only, and mixed feeding
Feeding mode data were collected from hospital birth records
This represented the strongest association observed in the study
Results
Mothers who increased probiotic intake during pregnancy compared to preconception levels had a lower risk of neonatal jaundice than those who decreased intake.
AOR 0.53 (95% CI: 0.32, 0.89), P = 0.016 for mothers who increased probiotic intake
Probiotic intake patterns (increased, maintained, or decreased compared to preconception) were obtained via questionnaires
Comparison group was mothers who decreased probiotic intake during pregnancy
Results
Mothers who maintained probiotic intake during pregnancy compared to preconception levels also had a lower risk of neonatal jaundice than those who decreased intake.
AOR 0.44 (95% CI: 0.24, 0.80), P < 0.007 for mothers who maintained probiotic intake
This was part of a stratification analysis on probiotic intake patterns
Both increasing and maintaining intake showed protective associations compared to decreasing intake
Background
Neonatal jaundice is a prevalent global neonatal condition with long-term adverse effects on neurodevelopment and overall health.
NJ affects 60-80% of newborns globally
Current clinical treatments such as phototherapy primarily focus on symptom management
Preventive strategies for NJ remain largely lacking
NJ is characterized by significantly increased bilirubin levels
Alemu B, Wang C, Poon L, Wang Y. (2026). Maternal probiotics intake during pregnancy and exclusive colostrum breastfeeding are associated with a reduced risk of neonatal jaundice.. BMC medicine. https://doi.org/10.1186/s12916-025-04516-x