Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Does she realy know anything about health?

Ok, hear is the "secret", a positive mental attitude is important. Yes, I agree with that. Research does, in fact, show that being optimistic helps you in many ways. However, trying to get thin by "thinking thin thoughts", and ignoring the fact that the person is killing themselves with trans fats, MSG, and a host of other toxins in their fast food laden diets is a travesty in health.I am sure millions of people will continue to buy this book. if for no other reason that they can convince themselves that it is ok to eat at McDonald's for breakfast tomorrow. If they gave a negative five stars I would have picked that.