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