Before knowing about the allergy caused by pistachio, let us know what exactly pistachio is. Pistachio is a type of edible nut similar to cashew nut. It is small in size and green in color. Pistachio trees are largely grown in mountainous regions of Asia but now are grown in Australia and California also.
They belong to mango nut family. Some people are born with pistachio allergy for unknown reasons. By consuming this nut they may develop itchy rashes like hives on the skin. It can also cause watery eyes and other allergic symptoms. The only treatment available for this is not to consume pistachio nut in any form.
Why Some People Develop Allergy?
When our body is exposed to certain unwanted elements, the immune system triggers some reaction automatically. Allergic reaction is produced when you eat or drink or exposed to certain allergens. There are several kinds of allergens ranging from dust, pollen, chemicals and certain kinds of foods. When a person is exposed to these allergens or eats foods that contain allergens, his body automatically produces adverse reaction.
The immune system of the body produces certain chemicals called antibodies to protect the body. These chemicals include histamines which produces allergic symptoms like rash, itching, sneezing etc. Allergic foods may contain certain proteins which are identified as harmful substance by the immune system which would trigger adverse reaction causing allergic symptoms.
The response of each person to allergy is different. Some people may have mild symptoms like sneezing and coughing while some may develop severe reactions like wheezing, shortness of breath and other life-threatening consequences. The severity of allergic reactions differs with each individual and to the extent of allergens consumed or exposed.