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Keywords: allergy diagnosis; atopic dermatitis; challenge tests; complementary feeding; food allergy; pediatrics; prevention; weaning EN allergy diagnosis atopic dermatitis challenge tests complementary feeding food allergy pediatrics prevention weaning 1592 1594 3 05/17/21 20210501 NES 210501 Oral tolerance induction (OTI) is the only RCT-proven effective intervention for preventing childhood food allergy.1,2 OTI to peanut is highly effective in a high-risk population with an 81% relative risk ration (RRR) to peanut allergy.3 OTI also reduced egg allergy in the general population in a per-protocol analysis.1 These published RCT findings have changed practice and many governmental and allergy societies now recommend introducing peanut in infancy; some suggest that other foods, such as well-cooked egg, are also introduced. Commencing multiple food OTI at 4 months of age has no detrimental effect on established breastfeeding.6,7 All children may adopt a diverse weaning diet,8 including allergenic foods such as well-cooked egg and peanut, as soon as weaning commences. Allergy diagnosis, atopic dermatitis, challenge tests, complementary feeding, food allergy, pediatrics, prevention, weaning. [Extracted from the article]

Background Early introduction of dietary peanut in high-risk infants with severe eczema, egg allergy, or both prevented peanut allergy at 5 years of age in the Learning Early About Peanut Allergy (LEAP) study. The protective effect persisted after 12 months of avoiding peanuts in the 12-month extension of the LEAP study (LEAP-On). It is unclear whether this benefit is allergen and allergic disease specific. Objective We sought to assess the effect of early introduction of peanut on the development of allergic disease, food sensitization, and aeroallergen sensitization. Methods Asthma, eczema, and rhinoconjunctivitis were diagnosed based on clinical assessment. Reported allergic reactions and consumption of tree nuts and sesame were recorded by questionnaire. Sensitization to food allergens and aeroallergens was determined by means of skin prick testing and specific IgE measurement. Results A high and increasing burden of food allergen and aeroallergen sensitization and allergic disease was noted across study time points; 76% of LEAP participants had at least 1 allergic disease at 60 months of age. There were no differences in allergic disease between LEAP groups. There were small differences in sensitization and reported allergic reactions for select tree nuts, with levels being higher in the LEAP consumption group. Significant resolution of eczema and sensitization to egg and milk occurred in LEAP participants and was not affected by peanut consumption. Conclusion Early consumption of peanut in infants at high risk of peanut allergy is allergen specific and does not prevent the development of other allergic disease, sensitization to other food allergens and aeroallergens, or reported allergic reactions to tree nuts and sesame. Furthermore, peanut consumption does not hasten the resolution of eczema or egg allergy. [ABSTRACT FROM AUTHOR]