Doctors may be getting childhood obesity wrong, new research suggests

A new global definition of childhood obesity is reframing how doctors evaluate youth health, looking past traditional body mass index (BMI) measurements to focus on actual physiological impacts.According to research from the Murdoch Children's Research Institute in Australia, just 2.1% to 4.9% of children and adolescents qualify as clinically obese under the revised standard, compared to 7% to 10.8% under standard BMI calculations.Dr.Danielle Longmore, a pediatrician at the Melbourne institute, outlined the shift during an appearance on "Fox & Friends."YOUR WAISTLINE COULD REVEAL A HIDDEN HEART RISK YOUR BMI MISSES, MAJOR STUDY FINDS"There's a push to really understand the impact of body fat on health," Longmore said.

"BMI is really just measuring size.So it doesn't really have a way of capturing whether somebody is well or unwell."The traditional BMI measurement calculates a person's weight relative to their height.While clinical obesity rates are substantially lower in youth, they surge with age, peaking at 52% among adults aged 65 to 74 as chronic conditions accumulate.

(iStock)The new definition, developed by an international panel of medical experts convened by the medical journal The Lancet, requires evidence of both excess body fat and related health problems or limitations in daily activities.WEIGHT GAIN IN CERTAIN DECADE OF LIFE MAY BE MORE DANGEROUS, STUDY SUGGESTSThese indicators can range from elevated blood pressure and abnormal blood sugar to impaired mobility or poor sleep.CLICK HERE TO SIGN UP FOR OUR HEALTH NEWSLETTERLongmore noted that many children defined as obese by BMI metrics are active, sleeping well, attending school and otherwise healthy.The new diagnostic model formalizes what many pediatricians already practice by assessing blood pressure, blood sugar, sleep and physical mobility alongside size.(iStock)"I think this definition just really clarifies what people have been doing in actual clinical practice," Longmore said, noting that...