Most Americans are overweight, according to a new study looking at overweight and obesity rates in the United States.

In a report published in JAMA Internal Medicine, researchers from Washington University School of Medicine in St. Louis studied data from 2007 to 2012 of a nationally representative group of 15,208 people ages 25 or older.

The researchers estimate that during that time period, 40% of men were overweight and 35% of men were obese. They estimate that 30% of women were overweight and 37% were obese. The numbers are similar to those estimated by the U.S. Centers for Disease Control and Prevention (CDC)., which suggest that one third of American adults are obese.

“Our estimates are very close to CDC’s estimates, and there is clearly not a trend of decline on the prevalence of overweight and obesity in the United States,” says study author Lin Yang, a postdoc researcher at Division of Public Health Sciences in the Department of Surgery in an email.

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SOURCE: TIME, Alexandra Sifferlin