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1: J Am Diet Assoc. 2005 Jan;105(1):119-21.Click here to read Links

Hypercalcemia caused by iatrogenic hypervitaminosis A.

Bhalla K, Ennis DM, Ennis ED.

Baptist Health System, 840 Montclair Rd, Suite 317, Birmingham, AL 35213, USA. karan.bhalla@bhsala.com

Vitamin A toxicity produces protean clinical manifestations involving a wide variety of tissues and systems. Hypercalcemia can occasionally be associated with high vitamin A levels, but is rare. In this report we describe a patient who was receiving a commercially prepared enteral feeding formula for 2 years. He developed asymptomatic hypercalcemia and had serum vitamin A levels several fold above normal. Subsequently, a custom-made enteral feed was used which contained negligible amounts of vitamin A. Several months later, vitamin A levels diminished substantially and serum calcium levels returned to normal.

PMID: 15635357 [PubMed - indexed for MEDLINE]