I had a friend that was recovering. He managed to stop the drugs, but his body was in bad shape. Not only had meth and alcohol severely hurt his liver, he had issues with malnutrition. The guy used to be heavyset, but by the time he got over his addiction he was lighter than me ten-year-old son! He was on vitamins, and was drinking the carb drinks that are normally for athletes trying to bulk up. He looks a little better now, but has a ways to go. Unfortunately, his liver cannot repair itself, so he's probably shortened his life regardless.