According to Dr. Roy Walford, there's no need for plastic surgery or obsessive exercising to escape the effects of time. He argues that longevity can be significantly increased by a diet that contains all the required nutrients but about a third fewer calories. In this completely revised edition of The 120 Year Diet, Dr. Walford explains - and backs up his explanation with laboratory evidence - why he believes that the anti-aging diet can preserve one's vital, productive years and extend the human life span to well beyond its present maximum. A perfect companion to the author's The Anti-Aging Plan, this book also includes 20 days of varied high-nutrition menus that contain fewer than 1,500 calories a day.