The best-selling author of The 4-Hour Workweek outlines a program for healthy living that draws on 15 years of research and interviews with leading doctors and health-care experts to offer insight into genetic factors, nutrition requirements and fitness practices.

Bob Harper, superstar trainer and co-host of NBC's reality show "The Biggest Loser," distills his knowledge of nutrition, weight-loss strategy, and human nature down to twenty simple, nonnegotiable principles and offers a month's worth of menu plans and more than 90 rule-abiding recipes for breakfast, lunch, dinner, and snacks to keep you cooking and eating skinny.