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Milk Allergy

What Is Milk Allergy?

Cow’s milk allergy is the most common food allergy in infants and young children. Even though most children eventually outgrow their allergy to milk, milk allergy is also among the most common food allergies in adults. Young children who are allergic to fresh milk but can eat baked milk without reacting may be more likely to outgrow their milk allergy at an earlier age than young children who react to baked milk.

When a person with a milk allergy is exposed to milk, proteins in the milk bind to IgE antibodies made by the person’s immune system. This triggers the person’s immune defenses, leading to reaction symptoms that can be mild or very severe.

About 2.5 percent of children under three years old are allergic to milk.

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Gupta RS, Warren CM, Smith BM, Blumenstock JA, Jiang J, Davis MM, Nadeau KC. The Public Health Impact of Parent-Reported Childhood Food Allergies in the United States. Pediatrics 2018; 142(6):e20181235

Gupta RS, Warren CM, Smith BM, Jiang J, Blumenstock JA, Davis MM, Schleimer RP, Nadeau KC. Prevalence and Severity of Food Allergies Among US Adults. JAMA Network Open 2019; 2(1):e185630.doi:10.1001/jamanetworkopen.2018.5630.

Kim JS, Nowak-Węgrzyn A, Sicherer SH, Noone S, Moshier EL, Sampson HA. Dietary Baked Milk Accelerates the Resolution of Cow’s Milk Allergy in Children. J Allergy Clin Immunol. 2011; 128(1): 125-31.

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