DefinitionMalabsorption is difficulty digesting or absorbing nutrients from food.Causes, incidence, and risk factorsMany diseases can cause malabsorption. Malabsorption is usually the inability to absorb certain sugars, fats, proteins, or vitamins from food. It can also involve a general malabsorption of food.Some of the causes of malabsorption include:AbetalipoproteinemiaAIDSBiliary atresiaCeliac diseaseCertain medications (cholestryramine, tetracycline, some antacids, some medications used to treat obesity, colchicine, acarbose, phenytoin)Certain types of cancer (lymphoma, pancreatic cancer, gastrinomas)Certain types of surgery (gastrectomy with gastrojejunostomy, surgical treatments for obesity, partial or complete removal of the ileum)CholestasisChronic liver diseaseChronic pancreatiti