<s>[INST] My LFT has shown big levels Ive just returned from the US where I picked up,an upper respitory infection. I have priced up a virus which has left me quite ill, is severe sour nauseous in the stomach part of liver disease, if so how can it be treated? [/INST] Hi. Thanks for posting query at Chat Doctor. Usually ALT or AST values higher than "two times the upper normal limit", is considered abnormal (in some countries, ALT or AST values of more than 100 are considered abnormal). Value of AST or ALT greater than 85 or above maybe investigated further. Alcohol ingestion and obesity are common causes of fatty liver disease. However, viral causes should be ruled out. Advice :- abstinence from "Alcohol" - LOW fat diet should be followed, AVOID junk food and beverages-decreased oil consumption (oily food)- NO red meat-green vegetables should be ingested daily-use lemon juice (lemonade) once in a day-reduce weight if overweight/obese-"recheck liver enzymes after 6 to 8 weeks" and/or ultrasound. Any further questions are welcomed. Hope to answer your concern. Wish you good health. Regards, Chat Doctor.  </s>