WW Science Center | WW USA

Backed by science — always!

The Science Center


Grounded in science, WW doesn’t jump on the latest fads and trends. Instead, myWW+ uses the latest nutrition and behavior change science to help members build life-changing habits and reach their weight and wellness goals myWW+ is also one of the few programs that fulfills all of the criteria that expert panels have deemed necessary for behavioral lifestyle interventions for weight loss1, 2 to be effective.  Some of these panels of nutritionists and scientists include the United States Preventive Task Force, The Obesity Society, the American College of Cardiology, the American Heart Association, UK National Institute for Health and Care Excellence, and the Australian Government’s National Health and Medical Research Council. In addition, we have the evidence base to prove our delivery of these behavioral interventions works.

Significant & effective weight loss

WW has been evaluated across the world—the United States3,5,7United KingdomGermany4,12China9, and Australia4—and found to produce significant weight loss in each country. 

In numerous randomized, controlled studies, WW was found to be more effective for sustained  weight loss—defined as 6 to 12 months—compared to:

Additionally, WW has been evaluated and found to be effective for chronic health conditions, such as :

  • Prediabetes—WW is 12 times more effective for weight loss than a self-initiated program and produced greater improvements in glucose control in those with prediabetes.7
  • Type 2 diabetes—WW is 2 times as effective for weight loss than standard diabetes nutrition counseling and education, and produced greater improvements in glucose control in those with type 2 diabetes.8

Cost effective

In a review of weight-loss programs, WW was shown to be the most cost-effective when compared to other clinically proven nonsurgical programs such as Vtrim, Qysmia, Orlistat, and Jenny Craig.10