Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A fantastic, achievable lifestyle change for everyone!!!

I am a true believer in the writings of Dr Sears!! In six weeks, I lost 27 pounds and have kept the weight off!! I was not obese, and I weight train and do cardio work four times a week. Enter the Zone and the cookbook have changed my life in a positive way. I was in the military and would always go on the "wrestler's diet" of sweating and abusing diuretics to make my "quarterly weight." No more pain or suffering as I now know how to eat!! The USDA's food pyramid is a prescription for failure!! Thanks Dr Sears!!