I bought this book after reading some raving reviews and looking forward to discover the "revolutionary" approach of this book.
I found the book rather disappointing.
Most of the time the author refers to the patient as a "she", forgetting that there are a lot of men suffering of thyroid problems too. And this small pronoun imprecision is a precursor to the shortfalls of the book.
The only interesting aspect of the book is the fact that the author rightly points to the fact that patients suffering from Hashimoto (autoimmune thyroiditis) have, above all, an immune system problem rather than a thyroid problem. But he fails to give any sensible and detailed explanation on how to address such immune system issues. That is, if we exclude a short list of antioxidant supplement that he recommends. Although it becomes soon clear that the aim is for the patients to make a private appointment with him (never mind that a lot of readers are UK-based and he is in the US) in order to buy his own supplement products.
The tests that the author recommends to determine TH1/TH2 relative strenght, are not practical to obtain under NHS nor privately. And, at the end of the day, he himself seems to imply there is no much point getting them done given he says that in his own private experience 90% of patients with thyroid problems fall into the same category (i.e. TH1 dominants).
I found the book very light on the medical side, often lacking structure (providing readers with lists is not giving the book any structures!) and a marketing exercise for the author's own practice.
By being wholly, imprecise and lacking structure, unfortunately the book fails to dissipate the usual criticism to alternative medicine. In this case, I would argue, rightly so.