The percentage of US citizens currently taking GLP-1 drugs such as Wegovy for weight loss has almost quadrupled to 11% from 3% in 2024. A further 4% of Americans say they’ve used the drugs in the past, Gallup polling found. Meanwhile, US obesity rates, which peaked in 2022 at 39.9%, fell further to 36.4%, suggesting, although not proving, a causal link.