HUMAN NUTRITION

Detailed explanation-1: -Hair and fingernails in food are examples of physical hazards-foreign and potentially dangerous items that find their way into food. Some more examples of physical hazards are: broken glass, fish bones, dirt, and packing material.

Detailed explanation-2: -Physical hazards are either foreign materials unintentionally introduced to food products (ex: metal fragments in ground meat) or naturally occurring objects (ex: bones in fish) that are hazardous to the consumer. A physical hazard contaminates a food product at any stage of production.