Abstract
Hunger has organic, psychological, social causes and affects wide masses of people all around the world. Food and Agriculture Organization of the United Nations (FAO) warns that carrying on economical crisis can push much more people into the hunger and poverty. It is known that hunger has many effects on different organ systems as a result of which causes metabolic and anatomic disorders. For understanding the complications of hunger, evaluation of its mortality and morbidity and for preparing new treatment protocols, stage of disease should be understood carefully.
Underlying etiology of hunger, its stage, existing comorbidities and attainable food resources can lead hunger treatment. There are a variety of treatment strategies depend on the cause of hunger whether it is because of an absolute lack of energy intake or it is because of inadequate energy intake.