What do you advise if i'm having sgpt level 80 and billirubin 1.3 -- how to lower them?

Find the cause: Ignore all pop advice on liver disease. Your physician may repeat these off all meds and alcohol, or proceed directly to screening for hepatitis B and C, hemochromatosis, Wilson's, autoimmune hepatitis and a few other things that will kill you if missed but are treatable. This may simply be your liver's way of asking for more exercise. Best wishes.