# Vitamin D Supplements: 4 Warning Signs You May Be Taking Too Much
Vitamin D plays an important role in bone health, muscle function, and calcium balance. Many people take supplements because they have low vitamin D levels or limited sun exposure.
High-dose Vitamin D
But more is not always better.
Vitamin D toxicity is uncommon, but it can happen when someone takes **excessively high doses of vitamin D supplements**, usually over time. The main problem is that too much vitamin D can cause calcium levels in the blood to rise
