The Seafood allergy is a kind of food allergy. It is a hypersensitivity to the dietary substances like the shellfish, scaly fish or crustaceans. The consumption of this kind of food may result in causing overreaction of the immune system of many individual and this in turn may lead to severe physical symptoms. According to the survey of the Asthma and Allergy Foundation of America it was estimated that majority of the pediatric and the adult food allergy patients have a seafood allergy. The adults are mostly affected by it.