U.S. adult obesity has dropped from 39.9% in 2022 to 37% in 2025, according to new Gallup data from nearly 17,000 adults. The decline aligns with a sharp rise in GLP-1 weight-loss drug use, which grew from 5.8% of adults in early 2024 to 12.4% in 2025. The biggest decreases in obesity were seen among adults aged 40–64. Though based on self-reported data, the trend suggests expanding access to weight-loss treatments may be contributing to lower obesity rates. Despite this improvement, U.S. obesity levels remain high compared with other Western countries.