{Reference Type}: Journal Article {Title}: Vitamin D therapy in chronic kidney disease: a critical appraisal of clinical trial evidence. {Author}: Yeung WG;Toussaint ND;Badve SV; {Journal}: Clin Kidney J {Volume}: 17 {Issue}: 8 {Year}: 2024 Aug {Factor}: 5.86 {DOI}: 10.1093/ckj/sfae227 {Abstract}: In people with chronic kidney disease (CKD), the physiology of vitamin D is altered and leads to abnormalities in bone and mineral metabolism which contribute to CKD mineral and bone disorder (CKD-MBD). Observational studies show an association between vitamin D deficiency and increased risk of mortality, cardiovascular disease and fracture in CKD. Although vitamin D therapy is widely prescribed in people with CKD, clinical trials to date have failed to demonstrate a clear benefit of either nutritional vitamin D supplementation or active vitamin D therapy in improving clinical outcomes in CKD. This review provides an updated critical analysis of recent trial evidence on vitamin D therapy in people with CKD.