What are the signs and symptoms of chronic vitamin D toxicity?

Updated: Dec 26, 2017
  • Author: Mark Rosenbloom, MD, MBA; Chief Editor: Michael A Miller, MD  more...
  • Print
Answer

Chronic toxicity effects include the above symptoms, as well as the following:

  • Constipation
  • Abdominal cramps
  • Polydipsia
  • Polyuria
  • Backache

Findings may also include calcinosis, followed by hypertension and cardiac arrhythmias (due to a shortened refractory period).

In case reports of two young breast-fed infants who developed vitamin D toxicity from inadvertent overdose of highly concentrated vitamin D formulations,  the infants presented with decreased feeding, lethargy, and inconsolable crying. Toddlers with vitamin D overdose have presented with irritability, vomiting, constipation, and hypertension. [43]


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!