A group of global experts is proposing a new way to define and diagnose obesity, reducing the emphasis on the controversial body mass index and hoping to better identify people who need treatment for the disease caused by excess body fat.
Under recommendations released Tuesday night, obesity would no longer be defined solely by BMI, a calculation of height and weight, but combined with other measurements, such as waist circumference, plus evidence of health problems tied to extra pounds.
Obesity is estimated to affect more than 1 billion people worldwide. In the U.S., about 40% of adults have obesity, according to the U.S. Centers for Disease Control and Prevention.
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