Which of the following is a common symptom of an allergic reaction to food?

A common symptom of an allergic reaction to food is the presence of hives and swelling. When a person has an allergy, their immune system reacts to certain proteins in the food as if they were harmful substances. This response can trigger the release of histamines and other chemicals, leading to symptoms such as hives, which are raised, itchy welts on the skin, and swelling, particularly in areas like the face, lips, or throat.

Understanding the nature of food allergies is crucial, as they can range from mild reactions, such as localized swelling and hives, to severe, life-threatening responses like anaphylaxis. Recognizing symptoms such as hives can help in the timely management of a food allergy, making it essential knowledge for anyone working in food service or public health. Other symptoms of an allergic reaction might include itching, rashes, and respiratory problems, but hives and swelling are some of the most distinctive and recognizable signs.