This book could be a bit simpler to understand, but this is it your answer for weight loss, preventing diabetes and treating polycystic ovarian syndrome. You don't have to live without carbs for the rest of your life. You don't have to starve yourself thin (like that really works anyway). What you need is this book!

This is literally the bible for step! I highly recommend also purchasing the flashcards at USMLE-Rx; they're not your typical, traditional term and definition flashcards; the questions are well-written and provide a comprehensive review of the material in the text; I wish I had had them while moving through biochemistry and physiology as a MD1. The 2015 version is an improvement over the 2014 version; additional material has been added to the GI chapter for example. I also recommend taking the book to a brick and mortar office supply store and getting it spiral bound.