Instruct: Classify Amazon reviews into positive or negative sentiment
Query: VERY low-calorie dieting

The book has excellent information, but I am leary about her plan of 1,000 calories. That is very low. I don't feel anyone should eat any less than 1,200 calories a day. I can see maybe dipping down to 1,000 calories once in a while, but the author wants the reader to do it every day. This could be dangerous.