Can Vitamin D Supplements Cause Diarrhoea?

Can Vitamin D Supplements Cause Diarrhoea? Can vitamin D supplements cause Diarrhoea? Excessive doses of vitamin D, alone, can result in toxicity, with a long list of potential symptoms that includes diarrhea and constipation. In adults, taking 50,000 international units of vitamin D a day over several weeks leads to toxicity. Can vitamin D affect