This book should have a warning "Don't read, unless you are ready to change your life for the better!"
The science behind the New Primal Blueprint makes all kinds of sense and explained in easy to understand terms. The actual book ( as opposed to the audio version) has many helpful charts and graphs that also help. I feel better than I've felt in a long time. It is easy to become an evangelist for this info. I feel obligated to share with all those who are sick and tired of being sick and tired.