I'll start with what I liked - the history, and the speculation that modern wheat might cause some of the medical problems because of its genetic design. Unfortunately, the author left his point after the first chapter to write a diet book, and not a very good one. Little science, an overabundance of anecdote, and a preachy conclusion. Wheat is not tobacco, but even there the analogy this author strives for breaks down. In moderation, few things will actually kill you - unless you have an allergy or sensitivity. No science to say just how many people have a wheat or gluten allergy in this book, unfortunately - just a lot of hyperbole about how many more people are affected than show symptoms.
I for one would like to see more science about wheat gluten, whether genetically there is a difference in modern strains, and the effects of reduction of wheat - not the elimination this author constantly preaches.