What is a common symptom of foodborne illness?

Nausea is a common symptom of foodborne illness due to the body's response to harmful pathogens or toxins that have been ingested. When food containing bacteria, viruses, or other contaminants is consumed, the gastrointestinal tract may react strongly, resulting in symptoms like nausea as a way to expel the harmful substances. This symptom often occurs alongside other gastrointestinal disturbances, such as vomiting and diarrhea, which are typical indicators of foodborne illness.

While weight gain and fatigue can occur in various health conditions, they are not directly associated with the immediate effects of foodborne pathogens. Dizziness can sometimes occur in relation to certain infections or dehydration resulting from vomiting or diarrhea, but it is not a hallmark symptom of foodborne illness like nausea is. Recognizing nausea as a key symptom helps in the early identification of potential foodborne illnesses, allowing for timely medical intervention and preventing further consumption of contaminated food.