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Food allergy is an abnormal response to a food triggered by the body’s immune system. “Food allergy” refers to a particular type of response of the immune system in which the body produces what is called an allergic, or IgE, antibody to a food. (IgE, or immunoglobulin E, is a type of protein that works against a specific food.)

Allergic reactions to food can cause serious illness and, in some cases, death. Therefore, if you have a food allergy, it is extremely important for you to work with your healthcare provider to find out what food or foods cause your allergic reaction.

Sometimes, a reaction to food is not an allergy at all but another type of reaction called “food intolerance.”

Food intolerance is more common than food allergy. The immune system does not cause the symptoms of food intolerance, though these symptoms may look and feel like those of a food allergy.

Hi adultphonechat,

Well,Food allergies happen when someone's immune system mistakenly believes that something the person ate is harmful to the body. In an attempt to "protect" the body, the immune system produces IgE antibodies to that food. IgE antibodies then trigger mast cells (which are allergy cells in the body) to release chemicals into the bloodstream.

Thanks

Hi dude!!

Food allergies occur when your immune system makes a mistake. Normally, your immune (say: ih-myoon) system protects you from germs and disease. It does this by making antibodies that help you fight off bacteria, viruses, and other tiny organisms that can make you sick. But if you have a food allergy, your immune system mistakenly treats something in a certain food as if it's really dangerous to you.