What is a common symptom of foodborne illness?

A common symptom of foodborne illness is fever. When an individual contracts a foodborne pathogen, their immune system responds to the infection, which can lead to an increase in body temperature as the body attempts to fight off the invading pathogens. Fever is often accompanied by other symptoms such as nausea, vomiting, diarrhea, and abdominal pain, depending on the type of foodborne illness.

In contrast, high blood pressure is not typically related to foodborne illnesses; it is more a chronic condition influenced by various lifestyle factors. Weight gain does not serve as a symptom of foodborne illness and is generally associated with long-term dietary habits and metabolic issues rather than immediate reactions to contaminated food. A headache can occur for various reasons and is not specific to foodborne illnesses, as it can also result from dehydration, stress, or other health conditions.