An Egg Yolk (Anda) Individual Food Allergen test is a specific blood diagnostic tool used to identify allergic sensitivity to the proteins contained within egg yolks. Although egg whites are more commonly associated with allergic reactions, the yolk also contains distinct proteins that can trigger an inappropriate immune response.

The test measures the concentration of specific IgE antibodies in the serum produced against egg yolk proteins. Identifying an egg yolk allergy helps healthcare providers create tailored dietary management plans, helping individuals safely avoid trigger foods and prevent allergic symptoms ranging from mild hives and gastrointestinal discomfort to severe anaphylaxis.