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Cow's Milk Protein Allergy in Babies

Cow's Milk Protein Allergy in Babies

Overview

If you drink or eat dairy products and are breastfeeding, the cow's milk protein is passed to your baby. Cow's milk protein is also an ingredient in most infant formulas. Some babies are allergic to this protein.

Signs of cow's milk protein allergy include:

  • Hives.
  • Swelling of the face, tongue, mouth, or throat.
  • Difficulty breathing, wheezing, or asthma.
  • Abdominal (belly) pain.
  • Vomiting.
  • Diarrhea.
  • Blood in the stools.

A formula-fed baby with a cow's milk protein allergy usually will be switched to a different kind of formula.

If your baby has signs of a milk protein allergy, contact your baby's doctor.

Credits

Current as of: April 20, 2022

Author: Healthwise Staff
Medical Review:
E. Gregory Thompson MD - Internal Medicine
Adam Husney MD - Family Medicine
Martin J. Gabica MD - Family Medicine
Lora J. Stewart MD - Allergy and Immunology

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