And because the survey includes so many people, researchers can look at obesity rates in different age and racial groups. Black Americans report higher obesity ratesOther surveys say the problem is even worse. The new report contains data from the 2015 survey, which included more than 100,000 people. The increase between years was not huge, but as with obesity rates, it suggests a continuing upward trend. For that survey, CDC researchers measured the weight and height of more than 9,000 Americans to calculate their BMI, or body mass index.

Source: CNN May 25, 2016 10:26 UTC