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[Food allergy and asthma].

M L Pacor1, G Marchi, P Cortina

  • 1Istituto di Clinica medica, Università, Verona.

Recenti Progressi in Medicina
|February 1, 1992
PubMed
Summary

Asthma affects 12.8% of patients with food allergies or intolerances. However, only a small percentage showed diet-related asthma symptoms, confirmed by specific food challenges and oligoallergenic diets.

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Area of Science:

  • Allergy and Immunology
  • Respiratory Medicine
  • Gastroenterology

Background:

  • Asthma is a common respiratory condition.
  • Food allergies and intolerances affect a significant portion of the population.
  • The relationship between asthma and dietary triggers requires further investigation.

Purpose of the Study:

  • To determine the prevalence of asthma in patients with food allergies or intolerances.
  • To identify specific food antigens that may trigger asthma symptoms.
  • To evaluate the efficacy of oligoallergenic diets and food challenges in managing diet-related asthma.

Main Methods:

  • A study was conducted on 1339 subjects with food allergies or intolerances.
  • Asthma prevalence was recorded.
  • Skin prick tests, oligoallergenic diets, and double-blind food challenges were employed to identify dietary triggers.

Main Results:

  • Asthma was present in 165 out of 1339 subjects (12.8%).
  • Only 77 subjects (5.7%) had positive prick tests for food antigens, with 52 showing improvement on an oligoallergenic diet.
  • A double-blind food challenge identified 35 patients with diet-related asthma, primarily linked to milk, cereals, and additives.

Conclusions:

  • While asthma is prevalent in patients with food allergies/intolerances, diet-related asthma is less common.
  • Oligoallergenic diets and food challenges are valuable tools for identifying and managing diet-induced asthma.
  • Milk, cereals, and food additives are key dietary triggers to consider in these patients.

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