Fasting is the best thing for the liver. Of course water fasting is even better. The body is self cleaning and self healing. By not giving it more waste to get rid of, the body can play catch up and get rid of the backed up waste. If someone has too much trash, what trash can you give him to help him clean it up. Answer-- no trash. See this site on Fasting, Juice Fasting and Lemonade Diet to learn more about this with quotes from 18 MDs about fasting.