Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The best diet for life

This is the easiest, simplest and nutritionally complete diet I have ever followed. Once you get the basics in chapter 2 you are on your way to a healthy and satisfying journey through the diet maze. Food choices and portions are explained in an easy to follow manner. No scales, calorie counters or physics degree needed. Just pick your food categories and enjoy!