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Susan Powter
- Born
- 12 December 1957 (68 years)
- Place of birth
- Sydney, New South Wales, Australia
- Gender
- Female
Susan Powter 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. She hosted her own talk show The Susan Powter Show in the 1990s.
