Instead of using the controversial body mass index, or BMI, to assess weight, an international group of scientists proposes an approach that looks at how excess body fat affects health

As obesity experts say more than 15 million Birtons are being wrongly labelled overweight and propose a radical overhaul of the traditional BMI measure currently being used, Leah Hardy unpicks the sci

A global group of experts has suggested a new approach to diagnosing and treating obesity that does not rely solely on the much-contested body mass index (BMI).

As of March 2020, nearly 42% of US adults had obesity, with the report estimating that more than a billion people are living with obesity worldwide.

BMI is used to classify individuals as underweight, healthy weight, overweight, or obese based on their height and weight. It is calculated by dividing weight in kilograms by health in meters squared.

But the risk to health and wellbeing is not determined by weight – and therefore BMI – alone. We've been part of a global collaboration that has spent the past two years discussing how this should change.