Milk would definitely be bad. But you might consider some fresh fruit or fresh fruit juice. I'll bet fresh pineapple or apple juice (with equal parts water) would be great! In the liver cleanse forum, some people do the Master-Cleanse but take some prune juice with their liver cleanse, maybe you could try prune juice as well but remember it gets things moving! Of course, maybe you just want something to chew. A banana, an apple, or even lettuce would probably be fine. After all, it's still cleansing and healthy!
:-)