What is a common symptom of food allergies?

A common symptom of food allergies is nausea and vomiting. This reaction can occur shortly after consuming the allergenic food due to the body's immune system mistakenly identifying certain proteins in the food as harmful. This immune response can trigger the release of chemicals such as histamine, leading to gastrointestinal symptoms like nausea, vomiting, cramps, and sometimes diarrhea. Understanding this symptom is crucial for food handlers and managers, as it highlights the seriousness of food allergies and the need for proper food labeling and allergen management in food service settings. Recognizing and responding appropriately to these symptoms can help prevent serious health risks for individuals with food allergies.