Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essentialnutrients, such as fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cellsto provide energy, maintain life, or stimulate growth.
Historically, people secured food through two methods: hunting and gathering and agriculture. Today, the majority of the food energyrequired by the ever increasing population
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