One of the leading reasons of anemia on the background of chronic pancreatitis is the atophic changes of the mucous membrane of the gastrointestinal tract, chronic enteritis, accompanied by accelerated passage of chyme in the intestine, malabsorption syndrome. In healthy people, the concentration of iron is carefully regulated by cells in the proximal parts of the small intestine, which regulate its intake to match the loss of element. Errors in iron balance frequently lead to iron deficiency anemia. Such patients often have the following states: cognitive disorders, greater risk of mortality and hospitalizations among adults and, especially, old people, violation of thermoregulation, dysfunction of the immune system, gastro-intestinal disorders, Helicobacter pylori infection.