An international commission made the case for focusing on body fat quantity and the illnesses people experience.

Obesity is typically assessed by measuring someone's body mass index, but now researchers are calling for a more nuanced approach that could help with treatment

More than a billion people are estimated to be living with obesity worldwide and prescription weight-loss drugs are in high demand. The report, published in The Lancet Diabetes &

New guidance from a team of health experts around the world proposes expanding the definition of obesity beyond the popular body mass index (BMI) measure.

Body Mass Index, or BMI, has long been criticized as an unreliable method for measuring obesity — and now a group of experts is sharing new recommendations for how to use it.

Obesity, long determined by the flawed metric of BMI, should be diagnosed based on other measurements, experts argue.

A new report says only using BMI to determine if a patient has obesity leads to under-diagnosing people who are ill and over-diagnosing people who don't currently deal with the negative health consequences of obesity.

Novo sells semaglutide as Ozempic and Rybelsus for diabetes and as Wegovy for obesity. In price talks, CMS will treat the different forms as a single product.

Wegovy, Ozempic added to list of drugs where the federal government will try winning discounts from manufacturers.

Stock prices for Novo Nordisk fell by about 3% at market open after the Biden administration selected its revolutionary drugs for mandatory price negotiations.