The Condition"...The main purpose of the Gastrointestinal tract is the digestion and absorption of major nutrients (fat, carbohydrate, and protein), essential micronutrients (vitamins and trace minerals), water, and electrolytes..."
The Condition"...Decreased serum levels of total protein, albumin, y-globulin, iron, folate, vitamin B12, calcium, phosphorous, magnesium, and cholesterol result from impaired intestinal absorption..."
The Condition"...Increased quantity of fat in 72-hr stool sample after the patient has been on a 100-g fat diet daily for three days Decreased serum carotene indicates fat malabsorption or decreased dietary intake of carotene..."
The Condition"...Specific causes -- of which there are many -- lead to different patterns in malabsorption, involving for example fat and fat-soluble vitamins (A, D, E and K), vitamin B12, folic acid, iron, protein or carbohydrates..."
The Condition"...after pancreatitis or in cystic fibrosis) Whipple's disease (a very rare bacterial infection) The aftereffects of gastric bypass surgery, severity being dependent upon the type of bypass..."