While vitamin D is often regarded as vital for bone strength and immune function, medical professionals are now warning of a rising risk: vitamin D abuse can significantly affect the kidneys. Overconsumption, especially from high-dose supplements, can set off a series of events that endanger renal function.

Hypercalcaemia, a disorder characterised by abnormally elevated blood calcium levels, is the primary cause of the risk. The body pulls more calcium from the bones and absorbs more from the gut when vitamin D levels are high, overloading the kidneys to filter and remove the excess.

Nephrocalcinosis, a condition in which calcium builds up in kidney tissues over time, can cause acute renal damage or potentially irreversible damage.

Early symptoms like nausea, prolonged thirst, and f

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