Cofactors may explain why in some cases food ingestion leads to anaphylaxis while in others elicits a milder reaction/tolerance.1,2 Cofactors have also been related to a complex food allergy (FA) phenotype such as Lipid Transfer Protein (LTP)-FA,3 although limited data regarding the epidemiology and clinical profile of these patients are available. All patients had a positive peach LTP skin-prick test. I (Detailed methods i -Supplementary Material I ) i . Keywords: anaphylaxis; cofactor; lipid transfer protein; Pru p 3; risk factors EN anaphylaxis cofactor lipid transfer protein Pru p 3 risk factors 1924 1926 3 05/31/22 20220601 NES 220601 ACKNOWLEDGEMENTS None. [Extracted from the article]