Table 1.

Values that may help in Diagnosis of Food Allergy⁷

Age Group	Food	Specific IgE Levels Associated with 95% Risk of Reaction Serum IgE (kU/L)	Component Testing
Child	Egg	≥ 7
<2 years	Egg	≥ 2	Absent or trace Ovomucoid Can tolerate baked egg
Child	Cow Milk	≥ 15
<2 years	Cow Milk	≥ 5	Absent or trace Casein Can tolerate baked milk
Child	Peanut	≥ 14	Ara h2 >2 Predictive of systemic reactions
Child	Fish	≥ 20	Elevated Ara h8 and ara h9 (predictive of cross-reactive minor symptoms)