That's seriously nothing, only if it's 4 or 5 times that would I seriously worry. Ast levels increase after exercise. The best things you can take are TUDCA at 1g a day and you'll be perfect in a month. It is expensive though. Or, get choline and inositol pills and does a couple grams a day, best way to treat a fatty liver. Liv52 DS can also help depending on what the stress is from. Yes, NAC is also a good choice.