Risk of pyloric stenosis five times higher in bottle-fed babies

Danish researchers studied the birth records of more than 70,000 infants, 65 of whom had surgery for pyloric stenosis, finding bottle-fed babies were 4.6 times more at risk of developing pyloric stenosis.

The increased risk was seen in all bottle-fed groups, including those who had been previously breastfed and those fed only formula.

The authors believe that there could be hormones in human milk that favour pyloric relaxation.

“Breast milk also has lower osmolarity, which could provide better gastric emptying,” they wrote.

Breastfeeding may also be protective against unknown