Highlights
- Two-thirds of the children with kidney disease were classified as vitamin D deficient.
- Children with kidney disease who took vitamin D supplements had vitamin D levels that were 2 times higher than those who did not take supplements.
- Certain genetic variants were also associated with vitamin D levels.
Vitamin D deficiency often elicits no symptoms, but it may increase the risk of osteoporosis, cancer, cardiovascular disease, and autoimmune disorders.