Weight Watchers International has sued its rival Jenny Craig, charging that it lied in an advertising campaign that said its weight-loss program was superior to Weight Watchers.

A television advertisement featured a spokeswoman, Valerie Bertinelli, in a lab coat saying that ”a major clinical trial” had shown that ”Jenny Craig clients lost, on average, over twice as much weight as those on the largest weight-loss program”, which referred to Weight Watchers, a complaint filed in federal court in New York on Tuesday said.

”The Jenny Craig advertisements are false,” Weight Watchers said. ”Jenny Craig did not conduct ‘a major clinical trial’ comparing its product with the Weight Watchers program.”

Weight Watchers, which is based in New York, asked the court to stop Jenny Craig, a unit of the Swiss company Nestle, from using advertisements claiming that its weight-loss program was superior. It also seeks damages.

Weight Watchers said the start of the year was ”a critical time for weight-loss companies” because people sought to stick to their New Year’s resolutions to lose weight.

Couldn’t we just settle this with a wrestling match between spokespersons Valerie Bertinelli and Jenny McCarthy?

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