Food Allergy
Food Allergy: Modern Diagnosis and Management
Food allergies have increased significantly in recent years in Western societies, affecting approximately 8% of children and 3–4% of adults. The onset of symptoms is not limited to childhood, as the first manifestation may also occur at any stage of adult life.
The Impact on Quality of Life
Dietary restrictions place a considerable burden on patients’ daily lives and are a major factor contributing to a reduced quality of life. A key concern is the constant fear of a severe systemic reaction following accidental exposure to the responsible allergen.
Types of Food Allergy
Clinical evaluation distinguishes food allergies into two main categories, depending on the timing of symptom onset:
- 1. Immediate-type (IgE-mediated): Symptoms such as urticaria, swelling, dizziness, and difficulty breathing develop rapidly, within a few minutes to 1–2 hours after consuming the offending food.
- 2. Delayed-type (non-IgE-mediated): Symptoms take longer to develop, ranging from several hours to days, and often cause chronic gastrointestinal symptoms.
Advanced Diagnostic Approach in the Allergy Clinic
Regardless of the type of allergy, accurately identifying the responsible food is essential for patient safety. By using conventional diagnostic methods, such as skin tests and blood tests, as well as modern techniques such as Component-Resolved Diagnosis (CRD), it is possible to identify genuine food allergies while avoiding unnecessary and overly restrictive diets.
Oral food challenge tests also play an important role in this process, helping determine whether previously excluded foods can be safely reintroduced and gradually incorporated back into the patient’s daily diet.
If symptoms occur after consuming certain foods, a specialized allergy assessment can help ensure an accurate diagnosis and provide clear guidance regarding everyday dietary choices.
