food%20allergy%20(pediatric)
FOOD ALLERGY (PEDIATRIC)
Food allergy is an adverse reaction due to a specific immune response occurring reproducibly upon exposure to certain foods. It occurs minutes to hours after food consumption.
Immunological mechanisms can be IgE mediated, non-IgE mediated or mixed IgE and non-IgE mediated.
It may be life-threatening and is the most common cause of anaphylaxis in children.
It should be differentiated from food intolerance in which adverse reactions from exposure to food arise from non-immunological mechanisms.

Differential Diagnosis

Food intolerance

  • Adverse reactions from foods or food components arising from non-immunologic mechanisms, w/c includes:
    • Metabolic: lactose intolerance
    • Pharmacologic: caffeine
    • Toxic: scombroid fish toxin
  • Undefined: sulfites, reactions from food additives (eg artificial color)
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