Obesity and BMI: Experts want to branch out from controversial metric – National [Video]

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 one billion people worldwide. In the U.S., about 40 per cent of adults have obesity, according to the U.S. Centers for Disease Control and Prevention.

“The whole goal of this is to get a more precise definition so that we are targeting the people who actually need the help most,” said Dr. David Cummings, an obesity expert at the University of Washington and one …