Instruct: Classify the given review as either positive or negative.
Query: simple way to become more healthy

This book was amazingly accurate for me. it explained a lot evolutionarily. Of course, every person has to individualize their own diet for more factors than just their blood type, that is a given, but I learned a lot about my own body and how it works, and that can really help me make better eating decisions. i'm really thankful that i read this.