FOOD

 Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal  origin, and contains essential nutrients , such as fats, proteins, vitamins, or minerals . The substance is ingested by an organism  and assimilated by the organism's cells  to provide energy, maintain life, or stimulate growth.

Historically, people secured food through two methods: hunting and gathering, and agriculture . Today, most of the food energy required by the ever increasing population of the world  is supplied by the food industry.