Understanding Cow’s Milk Protein Allergy in Newborns

Cow’s Milk Protein Allergy (CMPA) is one of the most common food allergies in infants, affecting approximately 2–7% of babies. As a parent, it can feel overwhelming when your newborn seems uncomfortable or fussy after feeding, but understanding the signs of CMPA can help you get the right support and make necessary adjustments early on.

What Is CMPA?

CMPA occurs when a baby’s immune system reacts to the proteins found in cow’s milk. This can happen whether a baby is formula-fed or breastfed, as milk proteins can pass through breast milk when a nursing mother consumes dairy products.

Common Symptoms of CMPA:

• Excessive fussiness or crying after feedings

• Blood or mucus in the stool

• Frequent reflux or spit-up

• Diarrhea or constipation

• Eczema or skin rashes

• Poor weight gain

• Nasal congestion or chronic cough

Because these symptoms can resemble other conditions like colic or reflux, it’s important to consult your pediatrician if you suspect an allergy.

Diagnosis and Management

A pediatrician may suggest eliminating dairy from your baby’s formula or from your diet if you’re breastfeeding. If symptoms improve, this may confirm CMPA. In some cases, specialized formulas (like hypoallergenic or amino-acid based) may be recommended.

Most children outgrow CMPA by age 3, but until then, careful dietary choices can make a big difference in your baby’s comfort.

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We’re Here to Support You

At Mama Bear & Newborn Care, we work closely with families navigating feeding challenges like CMPA. Our trained night nurses and postpartum doulas can help you recognize symptoms, support feeding changes, and create a soothing environment for your little one.

Need help managing CMPA or adjusting your baby’s feeding plan? Visit www.mamabearnewborncare.com to connect with our expert team.