You need to cleanse the Colon/Bowel, Liver and Kidney's prior to cleansing! Clark claims that parasites can sometimes effect the quality of the Liver Flush but you need to do more than one anyhow. You need all elimination points cleansed and working correctly before killing off parasites etc which most times are just inactivated and the body is trying hard to expel what it dont want. If your bunged up how does it do this? It can't!
I suggest to you that you start making your own KOMBUCHA TEA!