IGHE and food allergy: Similar methods have tested the utility of IgE to allergen peptides in diagnosing and in predicting the resolution of other food allergies.82, 83, 84, 85, 86 In a CMA study,82 IgE binding was more diverse and had higher affinity for cow's milk allergen peptides in milk allergic patients reacting to baked milk compared with patients who reacted to unheated milk but tolerated baked milk, suggesting that the peptide microarray could be useful in identifying different phenotypes of CMA.