It is the appearance of allergy symptoms after consuming a certain food as a result of an abnormal response of the immune system which deals with such food as being a foreign harmful substance. In some cases, symptoms are triggered by touching, or inhaling this food. Symptoms usually occur during the first two hours of consumption.
A person may be allergic to one or more types of food. Sometimes, it is difficult to know if a person really suffers a food allergy, as some people may experience symptoms after consuming certain foods for reasons other than allergy. For example, a person may feel heartburn after eating spicy foods, or diarrhea after drinking milk due to difficulty of digesting lactose in milk. These cases are not considered food allergies.
Symptoms of food allergy may range from mild to severe, and may include:
Severe symptoms, also called «anaphylaxis», may include:
Yes, and they are conducted for foods triggering symptoms or foods of similar composition.
A drop of the food causing symptoms is placed on the skin of the patient, and then the skin is pricked to allow food to reach the internal tissues. After 15-20 minutes, the reaction on the skin is recorded.
In this test, the antibodies produced by the immune system as a response to the allergen are checked to verify whether they are found.
A clear plan shall be prepared to avoid allergenic foods, as follows: