Drug-Induced Liver Injury After Soy Protein Supplement Use.

Drug-induced liver injury (DILI) is an important and often elusive cause of iatrogenic hepatic injury which complicates its recognition and treatment. We describe a rare case of severe liver injury in a previously healthy individual associated with a commonly used and reportedly safe soy protein powder supplement. Discontinuation of the supplements and initiation of ursodeoxycholic acid provided symptomatic relief, decreased pruritus, and resulted in a resolution of hepatic panel labs.