Were you on his 7 days diet? Have you done much of meditation, spiritual practices?
I don't quite understand the conclusion that he is a fake.
There is one person I found on internet attended Brooks workship in the 80's and lived a life with very minimal food. - jack davis.
There was also people who attened and never heard of whoever attended his seminar said thing negative. Only from ones that never try his challenges nor attended his workshops/seminars...
Could be be more specific about your conclusion and provide a direct experience to support your judgement.