Which vitamin deficiency is common in patients with CKD?

Vitamin D deficiency is particularly prevalent in patients with chronic kidney disease (CKD) due to the kidneys' reduced ability to convert vitamin D into its active form, calcitriol. This process is crucial because active vitamin D is necessary for maintaining calcium and phosphate balance, promoting bone health, and supporting overall metabolic processes. In CKD, as the kidneys become less efficient, the levels of active vitamin D drop, leading to issues like bone disease (secondary hyperparathyroidism, osteitis fibrosa, and vascular calcifications). Therefore, monitoring and supplementation of vitamin D are often key components of managing patients with CKD to prevent complications associated with its deficiency.