Someone gave you some false information. The liver usually starts ridding the body of any toxins around 3:00 A.M. Every day. That's what the liver does. If you're worried about toxins, then I suggest you find some Dandelion/Yarrow tea and drink two cups a day after 3:00 P.M. Your liver will then rid your body of all toxins from meds or whatever. Best tea there is to clean your liver and body.