It is in his book Timeless Secrets of Health and Rejunvenation. This book is packed with tons of great info. I highly recommend it.
Thanks everyone for your input. I would tend to agree with the clean bowels being a must. I have undergone about 14 colonics in the past 4 months. I feel that they have been instrumental in putting me where I am. Although I still have a very light coating on the tongue, it started retreating toward the back after I started the colonics. And the most recent observation is that it is clearing down the center. Pretty neat! At least one time per colonic, I will have a little discomfort and when she releases it, very warm and dark gunk comes out. She says it is old bacteria being released. Whatever it is I always feel great after that happens.
Wow to the 9 and 10 day fast. I am hoping to just be able to do 3 days. You are an inspiration!