Responding like Kenneth Cooper (above) to Jim Fixx's death while running, Pritikin sensibly reiterates his original message: diet cannot be ignored. ""The appalling phenomenon of runners' deaths has evoked much controversy about the safety of running, even for people in apparently excellent health. There is compelling evidence that these deaths are due to the fact that most runners still follow the average American diet."" As Cooper and Pritikin both point out, many feel that their running alone makes then invulnerable to dietary-based or hereditary heart disease. Pritikin takes time to explain the results of Fixx's autopsy (his coronary arteries were massively blocked) and to indicate the possible connection with diet. He also discredits some other popular running myths and practices regarding food--high protein diets, carbohydrate-loading, excessive beer drinking, for instance--and warns against disregarding physical warning signals of distress. Then he sets out once again--in the light, now, of runners' and athletes' special concerns (high energy among them)--his Pritikin diet plan: low fat, high carbohydrate, alternative protein sources, etc. Extensive menus, recipes, and diet plans are included. Finally, there are answers--in the late Mr. Pritikin's no-nonsense style--to those who still claim his diet is too severe, or that exercise alone offers sufficient protection against cardiovascular disease. With Cooper, important and reassuring guidance.