What is the definition of foodborne illness?

The definition of foodborne illness specifically refers to diseases that are transmitted through the consumption of contaminated food. This can occur when food is infected with bacteria, viruses, parasites, or chemical substances that lead to illness after ingestion. Understanding this definition is critical for anyone involved in food safety and sanitation, as it underscores the importance of proper food handling, preparation, and storage practices to prevent such illnesses.

In contrast, the other options pertain to different types of health issues. Waterborne illnesses relate specifically to diseases transmitted through contaminated water rather than food. Diseases caused by overeating and those resulting from a lack of exercise address aspects of lifestyle and dietary behavior that do not directly correlate with foodborne pathogens. Hence, the choice of a disease transmitted by food is the most accurate description of foodborne illness.