A vitamin D deficiency is when you do not have enough vitamin D in your body. This is a problem, because the body needs vitamin D to absorb calcium and for other important jobs.
People who do not have enough vitamin D can:
●Have weak or soft bones, which can break easily or change in shape
●Have weak muscles, which makes them more likely to fall
Serum levels of calcitriol, the native form of active vitamin D, decline as renal function worsens, and calcitriol deficiency is almost universal among untreated patients on dialysis.Simultaneously, CVD and death risk rise dramatically as renal failure progresses. Emerging data suggest calcitriol deficiency and nutritional vitamin D deficiency contribute to the cardiovascular burden independent of changes in PTH
