WGO Practice Guideline - Malabsorption
Malindigestion: impaired breakdown of nutrients (carbohydrates, protein, fat) to absorbable split-products (mono-, di-, or oligosaccharides; aminoacids; oligopeptides; fatty acids; monoglycerides)
Malabsorption: defective mucosal uptake and transport of adequately digested nutrients including vitamins and trace elements.
Note: Digestive and absorptive processes are so inextricably linked, that a third term, malassimilation has been coined in order to reflect this situation. Despite these distinctions, reflecting the underlying pathophysiology, malabsorption is still widely used as the global term for all aspects of impairment of digestion and absorption.