<unk>  is a state arising from an abnormality in digestion or absorption of food nutrients across the gastrointestinal (GI) tract.
Impairment can be of single or multiple nutrients depending on the abnormality. This may lead to malnutrition and variety of anemias.
Malabsorption
Acid indigestion
Bile acid malabsorption
Lactose intolerance
Glucose-galactose malabsorption
Sucrose intolerance
Pancreatic insufficiency
Fecal impaction