Tag: Vitamin d toxicity

Vitamin D deficiency is a common issue, but for some, supplementation can be dangerous [1.10.3]. Taking too many vitamin D supplements can lead to a toxic buildup of calcium in the body, a condition known as hypercalcemia [1.3.2]. So, what medical conditions should not take vitamin D?

While vitamin D is essential for bone health and immune function, taking too much in supplement form can be harmful and potentially fatal. This condition, known as vitamin D toxicity, is almost always caused by excessive intake from supplements, not from sun exposure or food.