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Related Experiment Videos

Food allergy

D D Metcalfe1

  • 1Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892-1881, USA. dean_metcalfe@nih.gov

Primary Care
|September 12, 1998
PubMed
Summary
This summary is machine-generated.

Food allergies involve immune responses to food allergens, presenting as immediate or delayed reactions. Diagnosis requires history, exams, and tests, with avoidance and medication as key treatments.

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Area of Science:

  • Immunology
  • Gastroenterology
  • Allergy and Immunology

Background:

  • Food allergies are immune responses to specific food components.
  • Reactions can be immediate (IgE-dependent) or delayed (involving other systems like enterocolitis).
  • A limited number of foods commonly trigger most allergies.

Purpose of the Study:

  • To provide an overview of food allergy clinical entities.
  • To outline diagnostic approaches for food allergies.
  • To discuss current treatment strategies for food allergies.

Main Methods:

  • Diagnosis relies on patient history and physical examination.
  • Utilizes specific diagnostic assays.
  • Confirms diagnosis through oral food challenges.

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Main Results:

  • Identifies immediate (IgE-mediated) and delayed food hypersensitivity reactions.
  • Highlights the extensive differential diagnosis for food allergies.
  • Confirms that avoidance and pharmacologic treatments are primary management strategies.

Conclusions:

  • Food allergies encompass diverse immunologic reactions with varied clinical presentations.
  • Accurate diagnosis is crucial and involves a combination of clinical assessment and objective testing.
  • Effective management centers on allergen avoidance and appropriate medical intervention for accidental exposures.