Food is more than a collection of nutrients. A common need to meet certain fundamental conditions for survival is shared by human beings all round the world. One of these needs is securing an adequate diet, which will provide energy and the various nutrients necessary for metabolic functioning. To meet these nutritional requirements thousands of different foodstuffs and combinations are used to achieve the same end-that of survival. Food, not only is had to satisfy hunger but also for energy and working of the metabolic system.
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