Any product derived from an animal, spanning foods such as meat, milk, eggs, and honey to non-food materials including leather, wool, gelatin, and lanolin. The term matters in regulation, trade, and dietary classification: animal products face specific hygiene rules at slaughter and processing, distinct import controls to prevent disease spread, and clear labeling expectations. Vegetarian and vegan diets are defined by which animal products they exclude, with vegans avoiding all of them and vegetarians typically keeping dairy and eggs. Nutritionally, animal products are prized for complete protein, vitamin B12, heme iron, and other nutrients scarce in plants, while their production carries the environmental and welfare debates that increasingly shape consumer choice. Traceability of animal products from farm to shelf is a cornerstone of modern food safety.