Susan Powter

Susan Jane Powter (born December 22, 1957) is an Australian-born American motivational speaker, nutritionist, personal trainer, and author, who rose to fame in the 1990s with her catchphrase "Stop the Insanity!", the centerpiece of her weight-loss infomercial. Powter has been described as a cross between Richard Simmons and Betty Friedan and "the Lenny Bruce of Wellness".

An advocate of a whole-foods, organic, low-fat diet, and regular cardiovascular and strength-training exercise, Powter also condemned the diet industry. Her platinum-white close-cropped haircut, emphatic speaking manner, and habit of being barefoot while speaking in public, became trademarks of her celebrity. Provided by Wikipedia