A loss of appetite may be due to:
Chronic digestive system problems that decrease the amount of calories and nutrients your body absorbs, including:
Diarrhea and other infections that last a long time, such as parasites Chronic swelling or infection in the pancreas Removal of part of the small intestine Overuse of laxatives Other causes such as:
intentional vs unintentional definition of rapid
safe 1-2 lbs per week
Hormone Disorders
Diabetes that have not been diagnosed Overactive thyroid gland
Chronic Illness
diabetes, COPD or Parkinson disease infections such as HIV
Drugs
Drugs, including chemotherapy drugs, and thyroid medications Drug abuse such as amphetamines and cocaine appetite suppressants laxatives
Psychiatric Disorders
Feeling depressed Stress or anxiety Eating disorders, anorexia nervosa that have not been diagnosed yet
Surgery
bariatric small bowel