Food allergy overview in children

Area of Science:

• Clinical Immunology
• Allergology
• Pediatric Allergy

Background:

• Significant increase in food allergies over the last decade.
• Accurate patient history is paramount for effective food allergy management.
• Distinguishing food intolerance from food allergy and classifying allergies (IgE, Non-IgE, mixed) is crucial.

Purpose of the Study:

• To review the diagnostic approach and management strategies for food allergies.
• To highlight the varying clinical presentations and common allergens across different age groups.
• To discuss the role of structural proteins, diagnostic methods, and emerging therapies.

Main Methods:

• Clinical history taking as the primary guide for diagnosis.
• Classification of food allergies based on IgE, Non-IgE, or mixed responses.
• Utilizing skin testing and food-specific IgE measurements.
• Considering oral food challenges when indicated.

Main Results:

• Clinical features range from anaphylaxis to atopic dermatitis and gastrointestinal issues.
• Common allergens differ between children (milk, soy, egg, wheat, peanut) and adults (peanut, tree nuts, fish, shellfish, fruits, vegetables).
• Structural proteins influence reaction severity and cross-reactivity.
• Many children outgrow milk, soy, egg, wheat, and some peanut allergies.

Conclusions:

• Periodic reassessment is necessary as patients may outgrow allergies.
• Novel diagnostic techniques targeting specific allergenic epitopes are emerging.
• Promising new therapies are under development for food allergies.