Breastfeeding

Will my baby have an allergic reaction?

Key points: Breastfeeding Allergies: Babies can react to maternal diet. Signs include vomiting, colic, blood/mucus in feces, skin rash, diarrhea, and more. Awareness and Care: While uncommon, being at

Kinedu Editors
Child development specialists
Sep 02, 2016 3 min read
Will my baby have an allergic reaction?

Key points:

  1. Breastfeeding Allergies: Babies can react to maternal diet. Signs include vomiting, colic, blood/mucus in feces, skin rash, diarrhea, and more.
  2. Awareness and Care: While uncommon, being attentive to potential allergies is important for your baby’s health and well-being. If reactions occur, contact a pediatrician, and avoid suspect foods. Emergency breathing difficulties need urgent attention.


A breastfed baby may have an allergic reaction to the food consumed by his mom. Now, these allergies are not very common, but they happen sometimes, so we will show you the signs that may indicate that an allergic reaction or intolerance has occurred:

  • Frequent regurgitation or vomiting
  • Apparent pain in the stomach (he passes gas frequently, has colics, or is restless)
  • Blood or mucus in feces
  • Hard feces
  • Skin rash and inflammation
  • Diarrhea
  • What if I notice that my baby has an allergic reaction or intolerance?


Contact your pediatrician and avoid consuming the food that you think may have caused the reactions. If you notice that your baby struggles to breathe after one feeding, it may be an emergency. If this happens, call your emergency contact.

Turn reading into doing.

Get a personalized daily activity plan built around your baby's exact age.

Try Kinedu free →
Free 7-day trial

Keep this kind of guidance with you, every day.

Personalized activities, milestone tracking, live expert classes, and a library of 2,400+ articles — all built around your baby's exact age and stage.

8M+
Parents worldwide
2,400+
Expert articles
140+
Pediatric experts
4.8
App Store rating