ABSTRACT
Food is of fundamental importance to life. It is necessary for development and functioning, including maintenance and reproduction. On average, man consumes 30 tons of food during his lifetime; this is consumed in many basic dietary versions, varying at local, national, and international levels. Also, diet is related to social class. It is easy to see the difference in character between french fries and stew on one end of the scale and delicacies such as pâté de foie gras, filet steak, and quail eggs at the other. However, digestion splits all these foods into the same basic nutrients. The differences lie in quality, shape, and flavor only.
