American nutritionist Nathan Pritikin’s book,  The Pritikin Program For Diet And Exercise, spent a year on the New York Times’ bestseller list. The program required that you cut out salt, sugar, fat, caffeine and alcohol and limit the amount of red meat in your diet. As a result, it promised, you would live to play tennis with your grandchildren. As one dieter commented “You may not live longer on the Pritikin Program, but it certainly feels like longer.”