[Normal nutrition--malnutrition during malassimilation?].

Intestinal resorption can be disturbed in its intraluminal, intracellular or postcellular phase. Any such dysfunction may lead to an isolated or global malabsorption syndrome. An exact elucidation of the underlying pathophysiology is a prerequisite for a rational diet prescription. Only when this is completed, the diet can be adapted in a quantitative and qualitative sense to the residual intact function of the diseased digestion or absorption organ. The dietetic measures in an isolated or global malabsorption syndrome have been discussed.