Which of the following is a common foodborne illness symptom?

Nausea and vomiting are classic symptoms of many foodborne illnesses. These symptoms often occur as the body's response to toxins or pathogens that have been ingested. When harmful bacteria, viruses, or parasites enter the digestive system, they can irritate the stomach lining or disrupt normal digestive processes, leading to feelings of nausea and the urge to vomit. This response is part of the body's way of trying to rid itself of the harmful substances.

While dizziness, headache, and fatigue can be associated with illnesses, they are not as commonly recognized as direct symptoms of foodborne illnesses compared to nausea and vomiting. The gastrointestinal symptoms are particularly indicative of a foodborne illness, allowing healthcare providers to make more accurate assessments for diagnosis and treatment.