How much of Vitamin D is too much, and how overdose can cause kidney toxicity

Vitamin D is crucial for bone health and immunity, obtainable through sunlight and diet. Supplements, however, can lead to toxicity if dosages exceed the recommended 400-800 IU daily intake. Excessive vitamin D causes hypercalcemia, potentially damaging kidneys and leading to serious health issues. Consulting a doctor before taking supplements is essential to avoid toxicity.