Food is substance consumed to provide nutritional support to the body. It is usually of plant and animal source and contains essential nutrients such as carbohydrates proteins fats and vitamins. The substance is ingested by an organism and assimilated by the cells in an effort to produce energy.Almost all foods are of plant or animal origin.Many plant or plant parts are eaten as food.Traditionally, food was obtained through agriculture.Several organisations have begun calling for a new kind of agriculture in which agroecosystems provide food but also support vital ecosystem services so that soil fertility and biodiversity are maintained rather than compromised
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