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Table 32-1

Causes of Weight Loss

Cancer

Endocrine and metabolic causes

 Hyperthyroidism

 Diabetes mellitus

 Pheochromocytoma

 Adrenal insufficiency

Gastrointestinal disorders

 Malabsorption

 Obstruction

 Peptic ulcer

 Celiac disease

 Inflammatory bowel disease

 Pancreatitis

 Pernicious anemia

Cardiac disorders

 Chronic ischemia

 Chronic congestive heart failure

Respiratory disorders

 Emphysema

 Chronic obstructive pulmonary disease

Renal insufficiency

Rheumatologic disease

Infections

 HIV

 Tuberculosis

 Parasitic infection

 Subacute bacterial endocarditis

Medications

 Sedatives

 Antibiotics

 Nonsteroidal anti-inflammatory drugs

 Serotonin reuptake inhibitors

 Metformin

 Levodopa

 ACE inhibitors

 Other drugs

Disorders of the mouth and teeth

 Caries

 Dysgeusia

Age-related factors

 Physiologic changes

 Decreased taste and smell

 Functional disabilities

Neurologic causes

 Stroke

 Parkinson's disease

 Neuromuscular disorders

 Dementia

Social causes

 Isolation

 Economic hardship

Psychiatric and behavioral causes

 Depression

 Anxiety

 Bereavement

 Alcoholism

 Eating disorders

 Increased activity or exercise

Idiopathic

Abbreviation: ACE, angiotensin-converting enzyme.