Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Such a waste!

There is no natural cure for anything in this book. If you want to know he tells you to subscribe to his website for a monthly fee to find out what the cures are. Otherwise he tells you loads of stuff you already know if you have much common sense or interest in nutrition. He also tells you to practice Scientology/Dianetics! Please do yourself a favor and don't waste your money!