Dr. James D'Adamo burst onto the world of natural medicine in the 1970s with his revolutionary discovery of, and approach to, healing based on a person's blood type.Written in the infancy of America's modern natural-healing movement, his first book, One Man's Food . . . is someone else's poison, detailed his unique, individual treatment method that correlated a person's type of blood with diet, exercise, and spiritual practice.Just An Ounce of Prevention...