Instruct: Classify Amazon reviews into positive or negative sentiment
Query: If you read one book on diet or nutrition in your whole life, let it be this one.

I have been studying diet and nutrition for more than a decade and have read countless works on the subject. Without a doubt, this was the most compelling book I've come across and I cannot recommend it enough. Had it been on the shelf sooner, we would've cited from it hundreds of times in Skinny Bitch.Astounding, life-changing information is perfectly conveyed in the most readable, accessible language.If you eat, The China Study is a must read.