How do you know when you no longer need to take psyllium?
Psyllium is an essential part of the protocol for the first two phases. Then it can be used as desired. Some people use pysllium and bentonite all the way through the program, some just use it every other phase and still other people use it intermittently.
Your answer is in the way you feel with and without it and how balanced and healthy your elimination is. If you're not sure, you may wish to experiment with taking breaks from it after Phase II to see how it feels.
Take good care,