Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Biobalance

A physicist, the author of this book doesn't get to the diet until page 133 of a 172-page book. You'll find the actual diet in the Appendix! What is the rest of the book devoted to? Expounding on the evils of other diets and psychotherapy. It's not that the author is wrong in his stipulation that pH balance in the body may be the most important aspect of health and nutrition; however, 1.) he takes a very narrow view of a large picture, and 2.) he doesn't help you gain an understanding of balancing pH in your body. (Plus he wastes a lot of the reader's time trying to convince you about the value of his diet based on his anecdotal experiences.) If you want to learn the basic principles involved (which explain why some of this author's recommendations might actually make sense), read Sang Whang's "Reverse Aging." The book is also a much more pleasant read lacking the harranging and condescension of Dr. Wiley's book.