A new tool that can shed light on who is most at risk of obesity-related diseases could help identify people who would benefit most from weight-loss medications, researchers have said. Recent data suggests about two-thirds of adults in England are overweight or obese – a situation that has caused concern among health experts. Now researchers have developed a tool that, they say, offers an accurate and personalised approach to identifying those at risk of obesity-related conditions. They add it could be useful for prioritising who should receive interventions, such as weight-loss jabs, given that access on the NHS is limited and currently based simply on having a high body mass index (BMI) and particular obesity-related health problems. Prof Nick Wareham, of the University of Cambridge , a co-author of the study, said the measure was not about extending the use of particular therapies. “It’s about developing and validating a score that can help with more rational resource allocation.…