I recently got rejected for life insurance due to high GGT of 212 and ALT of 81. My AST was within normal range. I am 37 years old and 10lbs overweight - most of it in my belly. I am a social drinker and binge drink about 3 times a year. 11 days prior to my blood test I got very intoxicated mixing hard alcohol and beer. In addition, the day of my blood work I was getting over a bad cold. Based on the above, can this be the result of my high GGT and ALT levels? How long does GGT stay in your body? I stopped drinking!