


This level is many times higher than the U.S. Taking 60,000 international units (IU) a day of vitamin D for several months has been shown to cause toxicity. Your doctor might also prescribe intravenous fluids and medications, such as corticosteroids or bisphosphonates. Treatment includes stopping vitamin D intake and restricting dietary calcium.

Vitamin D toxicity might progress to bone pain and kidney problems, such as the formation of calcium stones. The main consequence of vitamin D toxicity is a buildup of calcium in your blood (hypercalcemia), which can cause nausea and vomiting, weakness, and frequent urination.
