
Health
5 common food allergens
A food allergen is an ingredient that triggers an abnormal immune response when ingested. Although food allergies can be bioindividual and can be caused by many reasons (mainly the protein content), there are certain items that are most likely to trigger these reactions. Knowing about these common food allergens and the allergic symptoms they cause can help one seek timely treatment before the condition worsens. What causes food allergies When someone has a food allergy, their body mistakenly recognizes certain foods or food components, usually specific proteins, as harmful substances. The immune system then remembers these allergens for future encounters. Even when a small amount of the allergen enters the system, the antibodies react by releasing histamine (a key mediator of immune responses), resulting in an allergic response. Commonly, if one has food-related allergies, they experience skin itching, hives or rashes, swelling of the face, lips, mouth, and tongue, wheezing, shortness of breath, and an itchy mouth and throat. These reactions typically begin within two hours of consuming the food containing these allergens. Signs such as a runny nose, sneezing, coughing, diarrhea, hoarseness, vomiting, and abdominal pain are also indicators of an allergic reaction. These symptoms can be serious and warrant a visit to a physician, even if one has previously experienced mild reactions.
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