What do studies say about IgE Allergie Test?

IgE allergy tests measure allergen-specific IgE antibodies. Studies show strong sensitivity for common inhalant and food allergens (e.g., pollen, milk, egg), but specificity is limited: positive results do not always indicate clinical allergy. Evidence is human-strong for detecting sensitization, but not for diagnosing allergy alone. Clinical history and challenge tests remain the gold standard. Caution: overinterpretation may lead to unnecessary dietary restrictions or avoidance behaviors. Tests are validated, but reference ranges vary between labs. Overall: useful as a screening tool, but not diagnostic in isolation.