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Decoding Cow’s Milk Protein Allergy (CMPA) In Babies - Dr Sangeeta.V. Budur
![Decoding Cow’s Milk Protein Allergy (CMPA) In Babies - Dr Sangeeta.V. Budur Decoding Cow’s Milk Protein Allergy (CMPA) In Babies - Dr Sangeeta.V. Budur](https://medicaldialogues.in/h-upload/2023/05/31/750x450_210885-featured-image-7-2.webp)
Cow’s milk protein allergy (CMPA) is the most common food allergy in babies. Though cow’s milk protein allergy (CMPA) is increasingly being diagnosed in Western countries, there is scanty data from India. The incidence of CMPA is estimated to be 2-7.5% in the first year of life.
As cow’s milk is part of the staple diet of Indian mothers and babies it is important to create awareness about CMPA and recognize and treat it early to avoid serious consequences. Let's try to understand and address a few frequently asked questions.
If you believe that feeding cow’s milk is as good as feeding breast milk and it's better than artificial milk formulas then you are wrong. Breast milk is always superior and it is your child's birthright. The American Academy of Pediatrics recommends introducing cow’s milk only after 1 year of age with continued breastfeeding till 2 years of age. Before your child is 1 year old, cow's milk may put him or her at risk for various complications. It also has too many proteins and minerals which may cause harm to your baby's kidneys.
CMPA occurs when your baby’s immunological system abnormally reacts to a protein in the cow’s milk and some other animals’ milk like goat, or sheep. That means there is an underlying genetic susceptibility for animal protein.
The incidence is as high as 15% in some studies under 1 year of age and the risk decreases as children get older, occurring in less than 1% of children 6 years and older. A family history of asthma, eczema or any allergic disease puts the child at risk for CMPA.
The infant can develop recurrent wheezing and is prone to respiratory tract infections, can develop recurrent eczema not respond to medications in the usual manner, there can be growth failure, and the child may not gain weight as expected. Babies can develop severe anaemia due to blood loss in stools and iron deficiency.
Yes, if the mother is consuming dairy products which are quite normal, the protein passes into the breast milk and the baby manifests symptoms of CMPA. But the incidence of CMPA is significantly less - 0.5% compared to formula-fed babies. Breast milk is protective against CMPA.
Trust your instincts, the moment you feel your child is not well, especially when your child is under the age of 1 year, consult the paediatrician. It is important to recognize the importance of diagnosing CMPA correctly because a wrong diagnosis leads to unnecessary elimination of diet in babies and breastfeeding mothers. According to a study, the prevalence of a real food allergy, in general, is less than what is perceived by parents. e.g.: 35% of children younger than 2 years were labelled by their parents as reacting to food (most commonly milk).
It is a clinical diagnosis. Usually, your doctor suggests eliminating dairy products from the diet, both for the mother and the baby. Simultaneously rules out other diseases (especially infection) which mimic CMPA. Once the symptoms disappear (which may take up to 2 weeks), your doctor might suggest reintroducing the dairy products which we call an oral challenge and the recurrence of symptoms indicates the possibility of CMPA. Apart from these, your doctor might suggest performing a few blood investigations/ allergy tests which help in diagnosis.
Treatment of CMPA includes removing cow’s milk protein from your child’s diet. (Including the mother if the baby is on breast milk). Usually started with formulas made from broken-down proteins (hydrolyzed formulas/ amino acid-based), which are easily digested. But babies who develop symptoms within 2 hours of consumption need immediate attention (severe wheezing, extensive rashes, sometimes anaphylactic shock) and the child should be brought to the hospital as they need emergency drugs to be administered intravenously.
Disclaimer: The views expressed in this article are of the author and not of Medical Dialogues. The Editorial/Content team of Medical Dialogues has not contributed to the writing/editing/packaging of this article.
Dr Sangeeta V Budur MBBS, MD (Paediatrics), FNB (Paediatric Critical Care) is a Consultant (Paediatrics & Paediatric Intensive care) at Aster RV Hospital, Bangalore, Karnataka. Dr Sangeeta is a trained Paediatric intensivist with 15 years of experience and specializes in transporting, stabilizing, and treating sick children in the PICU. Her areas of expertise are in Paediatric Critical Care, Point Care ultrasonography, Simulation-based training, Renal Replacement Therapy, Post BMT and Post Transplant Care, Postoperative cardiac patients, and Neurocritical care.