I browsed thru this book briefly, but what I did read let me know this book is a lemon. I could mention several points of misinformation in the little that I read, but I will only mention the statement that made my Gravesian eyes pop further out of my head. The last sentence in the segment about the antithyroid medication PTU says, 'Do not take PTU if you are pregnant or nursing.' The authors clearly are not aware that the treatment of choice for pregnant and breastfeeding women is PTU! If they don't know this fact, I would doubt any other information in the book. I wouldn't waste my money on it.