Prime example of marketing language is the chapter "How Tim Gained 34 pounds of muscle in 28 days". However, the well-chosen title conceals the these 28 days extend over 3 months since the training days are counted, not the days that lasts the program.
This language runs through the book, there is an expectation built up which is then ultimately not redeemed.
Anyone who is interested in the "slow-carb" diet with other authors such as Mark Sisson and Robb Wolf better off, as they go into more depth.
Tim Ferris is a master of marketing, I'll give him - but unfortunately remains after reading the book a little stale aftertaste that you went to the author and the great promises of the glue. Those who want to make simple and quick times an overview of opportunities for personal change, here is not entirely wrong, but more than an introduction to the subject, the book can not provide unfortunately.