FEATURE-In Herbalife's nutrition clubs, Ackman's attacks fail to resonate

Sept 5 (Reuters) - New York hedge fund manager William Ackman says Herbalife is a pyramid scheme that exploits the poor. He has taken a $1 billion bet against the company's stock and spent millions on research to attack the nutritional supplements seller, including making a video showing former distributors who claim they were deceived and lost money trying to sell its products.