Weight Watchers has launched an app to help its service providers -- the leaders and receptionists that run the member meetings -- collect member data and track sales. Weight Watchers Vice President ... MobiHealthNews: Study shows meetings beat out apps, online tools as Weight Watchers' main predictor Study shows meetings beat out apps, online tools as Weight Watchers' main predictor A guided weight loss program, such as Weight Watchers, may be more effective than the self-help approach, according to a study conducted by Baylor College of Medicine and sponsored by Weight Watchers.

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