Kidney complications
In some rare cases, this vitamin D side effect may lead to kidney injury and even kidney failure.
That’s because having too much vitamin D in your body can lead to high levels of calcium, as we discussed earlier, which can lead to water loss by urinating excessively and calcification of the kidneys.
Hypercalcemia can also cause one’s blood vessels of the kidneys to constrict, leading to decreased kidney function. In fact, research has also found moderate-to-severe kidney injury in individuals who develop vitamin D toxicity.
Having a vitamin D deficiency is also a factor that ca harm the kidneys and lead to extreme complications in those with kidney disease. That’s another reason why maintaining optimal blood levels of vitamin D is vital.
