Instruct: Classify Amazon reviews into positive or negative sentiment
Query: NUTRITION 101 Gives it "two thumbs up"

As a certified sports nutritionist, it helps me to motivate people at my sports nutrition store, NUTRITION 101 of Manchester, New Hampshire. Many of our customer compete in the "Physique Transformation Challenge" that Bill's company, EAS, puts on each year, and it seems that most people can get motivated and benefit from reading this book and doing the "challenge".