by Carrie Hirsch
What is a food allergy?
A food allergy is an immune system response to a food that the body mistakenly believes is harmful. Once the immune system decides that a particular food is harmful, it creates specific antibodies to fight it. The next time the individual eats that food, the immune system releases massive amounts of chemicals, including histamine, to protect the body. These chemicals trigger allergic symptoms that can affect the respiratory system, gastrointestinal tract, skin, and/or cardiovascular system. Some reactions can be deadly.