Food Allergy Testing

Allergies and other hypersensitivity reactions to foods and aeroallergens are characterized by elevated allergen-specific antibody levels in the affected individual’s blood.  IgE antibodies are found primarily in mucous secretions.  An IgE reactions occurs immediately after exposure to the allergen – a food or inhalant. IgG antibodies represent the most prevalent class found  in the blood.  The inflammatory process is gradual and may take anywhere from several hours to several days which is why this type of reaction of called delayed.

IgA antibodies can provide additional information to identify suspected food or inhalant  triggers.  IgA represents a primary immune reaction with a half-life of about 5 to 6 days when compared to IgG – which has a half-life of 20 to 24 days.  We take a small blood sample and analyze IgG and/or IgA reactions to determine food and/or inhalant sensitivities.   For more information go to