Which symptom indicates a foodborne illness?

Nausea and vomiting are common symptoms that indicate a foodborne illness. These symptoms arise as the body reacts to harmful bacteria, viruses, or toxins that may have been ingested through contaminated food or drinks. Nausea often precedes vomiting, serving as an early warning sign that something is amiss in the digestive system. When a person experiences these symptoms, it suggests that their body is attempting to eliminate the harmful substances, making it a critical indicator of potential food poisoning.

In contrast, increased appetite, feeling well-rested, and increased energy levels are not indicative of foodborne illness. These states typically reflect good health and well-being, whereas the presence of nausea and vomiting is a clear signal of distress associated with illness. Understanding these symptoms is essential for recognizing and responding to foodborne illnesses effectively.