Starved Vietnamese man, who was deprived of food in a Viet Cong prison camp. Note the rib cage showing, a clear sign of<unk> . The body expends more energy than it takes in. This imbalance can arise from one or more medical conditions or circumstantial situations, which can include: Medical reasons *Anorexia nervosa *Bulimia nervosa *Eating disorder, not otherwise specified *Celiac disease *Coma *Major depressive disorder *Diabetes mellitus *Digestive disease *Constant vomiting Circumstantial causes *Child, elder, or dependant abuse *Famine for any reason, such as political strife and war *Hunger striking *Excessive fasting *Poverty *Torture
Starvation
Refeeding syndrome
Protein poisoning
Overnutrition
Meal replacement
Dehydration
Sleep deprivation
Water intoxication