I read somewhere on the curezone, that they recommend doing the parasite cleanse during the master cleanse. I'm sure if you have a clean colon, doing the parasite cleanse now would be a great idea because you took away some of the gunk that the parasites love. I personally find the tricky part to be drinking the shakes on an empty stomach, but then also taking the parasite stuff on an empty stomach. By the time you take 3-5 shakes, and the parasite cleanse, you run out of hours in the day to fill the stomach (a little sarcasm there_