Instruct: Classify Amazon reviews into positive or negative sentiment
Query: BioBalance

Before purchasing this book I'd check it out of the library. In order to follow the diet advice one must first go to the doctor and have some blood work. Specifically, "you will undergo a series of blood tests for venous plasma pH and a test for candidiasis". "Venous plasma pH will be measured at various times during each of three days." If you are easily able to do this then read this book.The book covers a review of various other diets from macrobiotics to PMS. If this is what you are looking for then this is helpful.However, if you would like to be able to evaluate yourself and then follow a specific diet style read "The Metabolic Typing Diet" by Wolcott. After taking an extensive questionnaire you will type yourself and proceed from there. The book is an excellent read and delivers what you would expect.