Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very valuable book

This really is an incredible book - I am dissapointed that it hasn't recieved more notice and that the author has not set up the web site he discussed. As one reviewer noted the book is confusing but the diet becomes very easy to follow as you go along. If you have had problems with sugar/chocolate cravings and irritability when hungry I highly recommend this book.