You have to know yourself to come up with a diet..so having someone help you with it only gets you so far. If your an idiot then his diets would probably cause dramatic changes, but if you know what your doing then its just a matter of getting to know what works best for you and thats not something that someone else can do for you. I am not gonna knock the man though because he is still making a lot of money off of his diets, and people seem to enjoy them. In my opinion most of us on here dont need them though. I wish everyone would shell out money instead of doing research....I would be one rich trainer.