Food allergies are the most complicated and difficult allergies to live with as they have to do with something that we (have to) do every day. A food allergy is an abnormal immune system response that is triggered by sensitivity to a substance in a certain food.
Almost any food can cause an allergy. Food allergy symptoms usually develop within minutes to one hour of exposure to the allergen. If the body interprets a certain food as harmful, it produces antibodies to protect you from its dangers, causing allergic symptoms as the body tries to protect itself from the harmful allergen.
There are many types of adverse reactions to food which are called food hypersensivities and these can cause similar symptoms. However, it is crucial to know that most adverse reactions to food are not caused by a true food allergy.
Types of non-allergic food hypersensitivities include food intolerances like lactose intolerance or even sensitivities to chemicals including histamine in cheese, wine, and tuna. Additives like sulfites, monosodium glutamate in food also cause food hypersensitivity. Food poisoning may be caused by eating food contaminated with bacteria and harmful toxins. Food allergies and non-allergic food hypersensitivities are two different things and can be differentiated through diagnostic testing.
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