Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I can't believe I paid for this.

Don't waste your money! For 100 pages, you get this information: eat 3-5 moderate, balanced meals a day. Make sure you balance carbs, protein, and fat -- a simple google search will give you a good idea of what "balanced" is.If you can accept the fact that you should balance your macronutrients, save your $5. If you need more convincing read the book, it will only take a couple hours.No new information. Eat your fruits and veggies and get some exercise!