Instruct: Classify Amazon reviews into positive or negative sentiment
Query: this book is a joke right?

unbelievable ! This book advocates eating raw meat, full cream butter/milk, lots of fatty dairy products. It belongs to a time when men where men and women cooked in the kitchen. And real men hunted and killed their own meat. There have been numerous studies linking the kind of diet this book recommends to bad health. If you want a proper book on eating backed up with proper scientific studies then I would highly recommend 'The China Study' by Dr. T. Colin Campbell. What are the author's credentials anyway, is she a nutritionist? NO, is she a Doctor? NO, is she perhaps a research scientist? NO.