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In this study, commercial weight-loss programs were cheaper and more effective (Weight Watchers was particularly effective) than noncommercial weight-loss programs. Editorialists speculate that commercial programs are effective because they provide intensive support (e.g., “the power of the group” in weekly sessions) and incentives, which sustain motivation and behavioral change. These results are similar to those of another trial in which Weight Watchers was superior to weight-loss advice provided by primary care practices.
Ref.: Jolly K et al. Comparison of range of commercial or primary care led weight reduction programms with minimal intervention control for weight loss in obesity: Lighten Up randomized controlled trial. BMJ 2011 Nov 3; 343:d6500.
Interested in feeling younger and increasing lean body mass through diet, exercise and hormone replacement? Evolve Medical and Joel Nathan, MD can answer your questions.