DESC: Author Peter J. D'Adamo revolutionized the nutrition and health industry with his theories outlining the link between blood type, nutrition, and health. In this book, D'Adamo analyzes each blood type and explains the corresponding character and body traits. Devoting a section to each of the four blood types, he suggests foods, exercise, and lifestyle habits for each. Eating properly according to blood type will not only create a state of overall health, D'Adamo says, but lengthen the life span and allow the body to gravitate to a naturally healthy weight.