<s>[INST] Hi, I was taking an antibiotic, and the week prior i had a hep a, typhoid, and yellow fever shot.  Also, i was taking Oxyelite pro.  I took a blood test and my AST and ALT levels are 73 and 96 respectively... Other than that, everything else on my blood test is normal, i work out every week, and I'm in perfect shape.  What could cause the high liver enzymes? [/INST] Hi.Thanks for posting query at HCM.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.viral hepatitis ( HAV,HBV,HCV) are common cause of elevated liver enzymes. Typhoid fever may also affect liver and cause high liver enzymes. 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,Dr Tayyab Malik </s>