Cashew nuts Antigen is a specific substance used in the detection and measurement of allergens present in cashew nuts. Cashew nuts are a common allergen that can cause allergic reactions in susceptible individuals. The Cashew nuts Antigen is derived from proteins found in cashew nuts and is used in allergy testing to identify individuals who are allergic to cashew nuts. By measuring specific antibodies in the blood or conducting skin prick tests, healthcare professionals can accurately diagnose cashew nut allergies and provide appropriate management and treatment plans.