By Michelle Hannink, Grand Rapids Public Library, Main Branch

This New York Times bestseller is not another fad diet book. Roizen and Oz use simple language, humor and comical diagrams to help the reader understand the chemical and hormonal biology of food and fat metabolism within the human body. The authors present the “You Plan,” a diet and healthy lifestyle with recipes, and the “You Activity Plan,” an exercise regimen.

The human body has amazing and intricate systems for the processes of hunger, food consumption and satiety. The authors use a competitive sports metaphor for the eating/hunger signals as the offense and the satiety/satisfaction signals as defense. They explain the interaction of the brain, stomach, hormones, muscles, heart, genetics and daily stresses together to influence the waist and body size. The waist size has become more significant to medical practitioners than weight as an indicator of health risks associated with poor diet and lack of exercise.

A particularly interesting chapter explains the relationship of feelings and food. The authors explain the chemical relationship of emotions and stress on the brain chemistry of appetite and eating responses.

Little boxes of illustrations and facts give sideline explanations. Throughout the book, the reader will find practical tips and tidbits to help establish healthy eating habits. For example, eating a cup of soup or handful of nuts shortly before a meal will help appease the appetite and prevent overeating.

The book continues with the “You Turn” chapter, the presentation and encouragement towards a new lifestyle. It is all about gaining knowledge, changing your behaviors regarding eating and health, and gaining a permanent healthy lifestyle. The reader will continue on to the “You Activity Plan,” the 20-minute physical exercise program which does not require a gym membership or expensive equipment. The book is complete with the “You Diet,” the waist management eating plan and recipes.