A new study finds that three quarters of American adults and half of adolescents are too heavy. That's making more of us sick and creating enormous health care costs.

A commission proposed a new definition of obesity focused on how excess fat affects the body, rather than assessing body mass index, that could change clinical care.

Major heart health risk factors like obesity, diabetes and high blood pressure remain on the rise in the United States, according to an annual report from the American Heart Association.

A new study uncovers a novel mechanism through which brown fat is transformed into heat, offering protection against obesity-related diseases. Obesity affects 650 million people worldwide and signific

Obesity has been an ongoing struggle for many consumers, and for years, body mass index (BMI) has been the key metric health professionals have used to det

A group of 58 researchers is calling for a new, better way to measure obesity and excess body fat that goes beyond BMI. Here's what they recommend using instead.

Hims & Hers, a tele-health start-up, aims to stand apart from dozens of Super Bowl commercials hawking snacks with a spot that discusses obesity

Eli Lilly's Ozempic-rivaling weight-loss pill orforglipron could be available in early 2026. Its retatrutide may be as effective as bariatric surgery.

China is aiming to beef up physical education in schools, making it core to the curriculum rather than a secondary subject, authorities said as they push for a more "holistic education" amid growing concerns about the rise in childhood obesity.

The number of prescriptions for obesity medications rose an average of 5.3% annually from 2017 to 2024 and corresponded with an increase in online searches for obesity drugs, according to data published in JAMA Network Open.

Researchers at the, Riverside, backed by a substantial NIH grant, are pioneering a study on the unique immune responses to obesity and parasitic infections, highlighting differences between males and females.

New research shows bariatric surgery's powerful impact on liver health, reducing fatty liver disease risk and improving overall metabolic function in patients.