Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Lacking in substance

While the book does offer some helpful eating strategies, there is really nothing new to be learned here. Eating smaller portions & earlier in the day is not exactly rocket science. I expected more & was dissappointed. I have the audio version & the author's voice is grating to my ears, I wish I had gotten the book instead or better yet, waited to get the book from my local library. Aside from the recently confirmed findings that stress does contribute to overeating, there is nothing in this book that hasn't been stated better & in more depth in many other books or articles. Since the author is a doctor, I certainly expected more substance.