This document discusses chronic kidney disease-mineral and bone disorder (CKD-MBD). It begins with an overview of the key components involved in CKD-MBD, including calcium, phosphorus, parathyroid hormone, vitamin D, fibroblast growth factor 23, and magnesium. The document then presents two clinical cases involving patients with CKD and discusses treatment options based on their lab results. It also covers the roles of vitamin D and magnesium in vascular pathology and mortality in CKD patients. Guidelines for the treatment of secondary hyperparathyroidism from KDIGO are also summarized.