What type of supplements are good for improving a persons liver?

My cousin has asked me to post the question for him. He has elevated SGPT, SGOT, and BILIRUBIN levels and is wondering if there is a supplement or medication that he could get to help lower those levels in his liver.
SGPT- 95 (Normal range 7-56)
SGOT-45 (Normal range 8-40)
BILIRUBIN – 1.6 (Normal range 0.2-1.3)

Powered by Yahoo! Answers