Abstract: The prevalence of vitamin D deficiency or inadequate vitamin D intake is very high in patients on continuous ambulatory peritoneal dialysis (CAPD). Iron metabolism disturbance is aggravated due to the accumulation of hepcidin, which is resulted from the vitamin D deficiency induced abnormal bone mineral metabolism, micro-inflammation and malnutrition in CAPD patients. Supplement of vitamin D may be useful for iron metabolism disturbance through improvement of abnormal metabolism and malnutrition status and decrease of hepcidin in CAPD patients.

Key words: Peritoneal dialysis, Vitamin D, Iron metabolism