Andreas Moritz
As Invincible already emphasized, the evening meal should be early, ideally between 6pm and 7pm. A light dinner would be a frshly prepared vegetable soup with 2-3 veggies, unrefined salt, some herbs/spices, veggie cube perhaps, butter or ghee, and some toasted bread such as one made with Spelt, with butter or ghee.
Re liver flushing, it is always best to cleanse the colon first (see full directions in The Amazing Liver & Gallbladder Flush,
http://www.ener-chi.com), otherwise you may feel sick during the flush or not get out the largest possible amount of stones.
Andreas