Dietary fiber is known as the "seventh largest nutrient" opheliasmuse.com following the traditional six nutrients,and is the essential nutrient for maintaining human nutrition and health.Studies in recent years have shown that dietary fiber intake can delay turbosound ts-18sw700/8a the progression of chronic kidney disease(CKD).This article reviews the definition and classification of dietary fiber,the physiological effect of dietary fiber,and its role in prevention and treatment of chronic kidney disease and its complications.