Identification of offending allergens in patients with food allergy is a very important part of an allergist’s activity. Objective. To study the structure оf sensitization to food allergens among children in Moscow and Moscow region and to determine the significance of sensitization to milk proteins . Methods. The level and class of specific IgE in blood serum of children with IgEmediated allergic diseases were examined with RIDA AllergyScreen method. Serum of children with high level of specific IgE to milk allergenic proteins was studied. The level and ratio of specific IgE to individual milk allergens were revealed. Results. The structure of sensitization to food allergens was determined. It was revealed that cow’s milk allergens are the leading triggers of food allergy, especially in early childhood in Moscow and the Moscow region. The features of sensitization to cow’s milk proteins among children were analyzed. Conclusions. According to the study, about half of children with IgEmediated food allergies in Moscow and the Moscow region have sensitization to cow’s milk proteins. The leading role in the frequency of sensitization belongs to whey proteins of milk. Among them sensitization to а-lactalbumin was detected more often. The questions about the selection of hypoallergenic milk formulas for feeding of children with allergy to cow’s milk proteins were discussed.

IgE-mediated food allergy, sensitization, allergens, caseins, p-lactoglobulin, bovine serum albumin, hypoallergenic milk formulas .