Can consuming too much vitamin D be harmful?

However, this self-supplementation raises concerns. Some specialists favor ultra-high-dose medications (50,000 to 100,000 IU ampoules) available by prescription. Yet, research indicates that more moderate, but regular, intake may be more effective in preventing falls and fractures.

The potential dangers of excess vitamin D
Unlike water-soluble vitamins such as vitamin C, vitamin D is fat-soluble, meaning it accumulates in the body instead of being quickly eliminated. An excess can lead to hypervitaminosis D, or even toxicity, although these cases are rare.

The main risk is related to increased levels of calcium and phosphate in the blood. Since vitamin D promotes their absorption, an overdose can cause kidney overload and excessive accumulation of these minerals in the blood vessels. This calcification leads to stiffening of the arteries, thus increasing the risk of atherosclerosis and cardiovascular disease.Health