In recent years , defining features of different weight classes have moved beyond BMI (body mass index) to include a broader range of measures.

If a new proposal is accepted, almost 70 percent of US adults may find themselves classified as obese.

The problem with BMI as the primary marker for obesity is that the measure – dividing body weight in kilograms by height in meters squared – doesn't necessarily correlate with body fat percentage , which is crucial in assessing health risks such as diabetes and heart disease .

At the start of the year , a commission led by King's College London outlined a new weight-class framework that included measures such as waist circumference, waist-to-hip ratio, and waist-to-height ratio (known as anthropometrics or body measurements).

Now in a

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