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New research: Breastfeeding helps babies' gut health bounce back after cesarean birth or antibiotics.

Cesarean birth and antibiotic exposure around delivery can affect a baby’s gut microbiome in two ways that impact health: They reduce both the diversity of the gut microbiome and the overall levels of helpful bacteria.

The great news: exclusive breastfeeding helps restore that balance over time. A new systematic review and meta-analysis has shown:

✅ By 8 weeks: Cesarean-born babies who are exclusively breastfed show partial recovery toward the gut profiles seen in vaginally born babies
✅ By 24 weeks: That recovery is nearly complete
✅ Beyond 12 weeks: Extended exclusive breastfeeding is the strongest predictor of full microbial recovery

Breastfed babies in the meta-analysis showed roughly twice as much beneficial bacteria as formula-fed babies.

As we close out World Breastfeeding Week 2026, it’s one more reason to celebrate the Ten Steps to Successful Breastfeeding, the evidence-based care that best supports breastfeeding outcomes.

🔗Read the study: https://bmjpaedsopen.bmj.com/content/10/1/e004170
🌐 Learn more about Baby-Friendly care: https://www.babyfriendlyusa.org