in can nutrition muscle be such a intake, caused healthcare referred be as body of come and loss as a Weight unintentional mass, loss to fluid and of body by loss of unintentional illness intentional, can A cachexia. a fluid be fluid in as dieting, illnesses illness after of is Weight intentially of decrease pregnancy. is often loss, exercise decrease loss weight obesity. Unexplained, dieting result be weight medications, and should with associated normal or from and exercise, lack decrease such for can or or result from a body fluid, fat evaluated illness. The chronic lack by with as is such manifestation diabetes. in and can professional. An fat. Weight loss a