Cow’s milk allergy, also known as cow’s milk protein allergy (CMPA), is a common childhood food allergy, and infants who have it may have different experiences after consuming the proteins found in cow's milk. If you’re ever concerned that your little one may have it, don’t hesitate to contact your pediatrician.
| Indicator | Description |
|---|---|
| Colic | Prolonged crying (more than 3 hours/day, 3 days/week, for 3+ weeks) in an otherwise healthy baby. Often worst in the evening or night. Learn more about colic. |
| Nausea or vomiting | Your baby could feel sick or might vomit excessively. Learn more about baby vomit. |
| Reflux | Some babies have more severe reflux, spitting up large amounts, forcefully vomiting, choking, gagging, arching away from the bottle or breast, seeming irritable during or after feedings, or struggling to gain weight. |
| Diarrhea or unusual poops | Diarrhea can be frequent, watery, foul-smelling loose poops—especially concerning if baby becomes dehydrated. Breastfed baby poop is usually runny and seedy; formula-fed baby poop is typically thicker. If you notice blood and/or mucus in the stool, contact your doctor right away. Learn more about baby poop. |
| Gassiness | A bloated or firm stomach, clenched fists, stiff or pulled-up legs, and frequent passing of gas can indicate discomfort. Learn more about baby gas. |
| Constipation | Hard, pellet-like stools or infrequent bowel movements. Note: some healthy infants may go several days without pooping. Learn more about constipation. |
| Hay fever-like indicators | Sneezing, and an itchy, runny, or blocked nose may be signs of a reaction to cow’s milk. |
| Anaphylaxis | A rare but serious allergic reaction: indicators include difficulty breathing, fainting, facial swelling, and full-body skin irritation. Seek emergency medical help immediately (call 911). |
| Eczema or rash | Small red bumps on the face, scalp, hands, or feet that may itch, ooze, crust over, or feel dry and scaly. Learn more about baby rashes. |
Some cow’s milk allergy indicators, such as gassiness and diarrhea, are similar to dairy sensitivity indicators. However, cow’s milk allergy, dairy sensitivity, and lactose intolerance, are all different.
Food allergies involve the immune system, and in the case of a cow's milk allergy, the body's immune system triggers an adverse response to the protein in cow's milk.
Lactose intolerance in babies and lactose sensitivity have to do with an inability to fully break down or digest lactose, a milk sugar. If you're unsure if your child has sensitivity vs CMPA talk your pediatrician about the issues your baby is experiencing.
If you suspect your baby may have a cow's milk protein allergy, following these steps could make identifying the allergy a bit easier, but remember, any number of things could be causing your baby’s behaviors, so it’s best to consult your pediatrician.
Always speak to a doctor if you’re ever worried about your baby’s health. Get immediate medical help if your baby has trouble breathing, seems faint, or has swelling around their mouth and face.
If your doctor suspects cow's milk allergy, they may suggest eliminating cow's milk proteins from your baby’s diet. This isn't as daunting as it might sound.
As your baby gets older, your doctor may suggest you start reintroducing your child to foods made with cow's milk. This should always be done carefully and under a doctor's supervision. Most children outgrow cow's milk allergy eventually,1 so you may not be facing a lifetime of saying no to your child's pleas for ice cream and mac and cheese. In the meantime, there are other ways you can manage CMPA and the indicators associated with it.
If you think your little one may have an allergy to cow’s milk protein, talk to your doctor about switching to Nutramigen®, a hypoallergenic formula that is clinically shown to manage colic due to cow's milk allergy in as quickly as 24 hours.‡ It helps more babies overcome cow’s milk allergy and return to consuming regular milk in as soon as six months of feeding.2 It’s also lactose-free, which helps reduce the incidence of future allergies related to cow’s milk.§
*In a clinical study of infants with cow’s milk allergy, some experienced a reduction in excessive crying due to colic within 24 hours after starting an extensively hydrolyzed formula; results and timing vary by infant.
†Improvements in additional indicators associated with cow’s milk allergy (e.g., eczema, reflux, vomiting, diarrhea) were observed with continued feeding over 3–6 weeks on Nutramigen with Probiotic LGG; results and timing vary and not all infants will experience benefits.
‡Starts as early as 24 hours and 90% of infants experienced colic relief within 24 hours, due to cow’s milk allergy.
§Fewer incidences of asthma, rhinoconjunctivitis, urticaria, and eczema at 6 years compared to other hypoallergenic infant formulas.
References
Berni Canani R, Nocerino R, Terrin G, et al. Effect of Lactobacillus GG on tolerance acquisition in infants with cow’s milk allergy: a randomized trial. J Allergy Clin Immunol. 2012;129:580-
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