Volumetrics is the most sensible diet plan out there. Fill up your plate with non-starchy vegetables, add fiber-rich whole grains, beans, and fruit, cut your fats and added sugars and you can lose weight without starving. So much food and flexibility. Two of my research studies and many other weight loss studies use the principles of Volumetrics (worst diet name ever). So based on that alone, I should give the book five stars. But I’m removing a star because there is nothing new in this book. If you have any of the previous Volumetrics books, you don’t need this one. One benefit may be some new recipes but otherwise, you're all set. I do, however, highly recommend this book if you know nothing about the plan. The explanations of the eating philosophy are streamlined and there are 12 weeks of menus to get you started. A great plan to lose weight and maintain that weight loss for a lifetime. Just wish the plan had a less clinical/hokey name.