Anna Nicole Smith and the diet pill company she endorses were named in a suit filed in Los Angeles, alleging false and misleading marketing.

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In addition to unspecified damages, the three plaintiffs in the class-action suit seek an injunction that would prevent Smith and TrimSpa from claiming that TrimSpa's product "causes rapid and substantial weight loss," Eonline said.

In the lawsuit filed Feb. 1, Janet Luna, Myra Luna and Yvonne Rodarte accused Smith and TrimSpa Inc. of using deceptive business practices to sell the weight-loss supplement, and of violating California's unfair competition law.

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The women claim they were injured, although the suit did not outline the nature of the alleged injuries.

"The defendants have created an elaborate scheme to cheat consumers" with their false and misleading advertising, the complaint states.