1.The first time a person eats a food allergen, the individual will not respond negatively outwardly
The immune system protects the body from potentially harmful substances by recognizing and responding to antigens or invaders.
When the allergen is eaten, a IgE antibody is formed and attaches itself to cells found in the tissues in cells all over the body
So, now the body is primed for that allergen if it enters the body again.
2.When the food allergen enters the body again, the allergen binds to IgE antibodies and sends out signals for the body to release large amounts of histamine
This causes irritation and swelling in certain areas of the body - an allergic reaction.
The reactions may be different for each individual
Some may manifest a mild form of hives and others may develop shortness of breath or anaphylaxis, which could cause death.
This can be common with severe food allergies or even a bee sting.
