摘要: Publisher Summary This chapter mainly focuses on the concepts in regulation of food intake and progress knowledge nutrition, importance food, water, nutrition for survival a living element also processes that take place during intake. Nutrition consists many biochemical, physiological, behavioral processes, all them interlocked geared to specific function is each animal. Food exists external environment. To obtain requires sense need or appetite. Appetite drive sets an animal search food. locomotion, exploration, examination. Recognition made possible by chemical senses. The must choose adequate diet accordance with its needs. Information about environment integrated brain information bodily needs, leading choice best suited covers topics like early intake, appetite, hunger, drive, urges gastrointestinal tract role adipose tissues alimentary behavior, processing food: flavors; obesity: impairment intake; span life.