WW Science Center | WW USA

Welcome to the WW Science Center

Where true behavioral change begins.

The health and wellness-sphere is loaded with fads, trends, and fake news. The WW Science Center is the antidote to all that. We are, and always will be, rooted in nutrition and behavior change science. And we use this research—along with expert insight—to help members build life-changing habits and reach their weight-loss and wellness goals.

WW’s Commitment to Science and Efficacy

Since 1963, WW has been rooted in science. Today, the WW program is guided by our Science team—a 12-person-strong group of innovators, including psychologists, registered dietitians, behavioral scientists, and other experts. The team regularly partners with universities to conduct clinical research.

Because of this commitment, WW is one of the few programs that fulfills all of the criteria that expert panels deem necessary in order for behavioral lifestyle weight-loss interventions to be effective.1, 2 These panels 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.

That’s not all: Over the past five decades, more than 130 published papers and randomized controlled trials have examined the efficacy and impact of the WW program. WW is the #1 doctor-recommended weight-loss program according to a new survey of 14,000 doctors†. And for the past 11 years, WW has been named the #1 Best Diet for Weight Loss by U.S. News & World Report.

For more information about the research behind our program, please visit this page.

†Based on a 2020 IQVIA survey of 14,000 doctors who recommend weight-loss programs to patients.