Can a diabetes drug transform the treatment of obesity?

In people with obesity, a high-dose weekly injection of the diabetes drug semaglutide caused a 15% weight loss and improved other heart-related risk factors. Semaglutide works by mimicking a substance called GLP-1, which is made naturally by the gut and the brain. It prods the pancreas to release insulin when blood sugar rises too high, reduces appetite, and makes people feel full following a meal.