This book challenges the way Japanese health trends uncritically embrace dieting (food restriction) as a "miracle cure" for maintaining health. The authors are nutrition science counselors with a charismatic following in the United States. Since its first edition in 1985, it has become a long-selling book, with over 10 million copies published worldwide to date. Amidst the overflowing amount of health-related information, the authors argue that we are losing sight of the natural laws, the rules that should be called the "laws of life." For example, they suggest that since humans were originally frugivores, we should first construct a menu centered around fruits. They go so far as to say, "Fruits are the most important food we can consume." On the other hand, they argue that "milk was never made for humans," and explain that fruits and vegetables are sufficient for obtaining calcium, providing examples of specific foods. Regarding dieting, they criticize it as "the most ineffective and strange behavior among all our human actions." In the second half of the book, they present an ideal menu for 3 meals a day for 4 weeks. They also publish recipes for recommended dishes centered around fruits and vegetables. There are also recently added chapters for this book, touching on the reality of Americans moving away from meat consumption and the increase in vegetarians.