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Background  Hen's egg is one of the most common allergens causing infantile food allergy. Consuming heated egg yolk slightly contaminated with egg white (EY with scEW) improves diet quality. Most children with egg allergies can safely consume 1/25 of a heated whole egg (low‐dose egg). Although low‐dose egg has similar antigenicity to EY with scEW, clinical reproducibility is unknown. We aimed to examine the safety of EY with scEW consumption after a negative result of low‐dose egg oral food challenge (OFC).    Methods  In this prospective study, children aged <18 years with a history of immediate reaction to eggs were enrolled. We advised children and guardians to consume EY with scEW after a negative result of low‐dose egg OFC and to record symptoms, if any.    Results  We evaluated 276 children with negative results for low‐dose egg OFC who had previously shown reactivity to eggs. Their median age was 1.2 years. Boys accounted for 188 (68%) of the children. The median egg white‐specific immunoglobulin E level was 11.7 kU A /L. At home, six children experienced mild symptoms. Skin symptoms were the most common. Among the six children, five were confirmed to continue the consumption of EY with scEW and one developed mild respiratory symptoms and continued to avoid eating eggs.    Conclusion  Although a few children with egg allergies experience mild symptoms, most of them can ultimately consume EY with scEW. Consumption of EY with scEW after low‐dose egg OFC seems safe and may improve their quality of life by making egg yolk products available.

Safe egg yolk consumption after a negative result for low‐dose egg oral food challenge