US Adult Obesity Rate Declines for the First Time in Years

After decades of rising obesity in the United States, a closely watched measure has finally turned downward. Gallup's National Health and Well-Being Index found that the adult obesity rate fell from a peak of 39.9% in 2022 to 37.0% — a drop that translates to roughly 7.6 million fewer Americans classified as obese in just three years. It is the first statistically significant decline the index has recorded.

The timing points strongly to a new generation of medicines. The share of adults using GLP-1 injectable drugs for weight loss more than doubled, from 5.8% in early 2024 to 12.4%, with higher use among women (15.2%) than men (9.7%). The age groups with the greatest uptake also saw the largest declines in obesity: people aged 50 to 64 dropped 5.0 percentage points, and those aged 40 to 49 fell 4.3 points. The alignment between where the drugs are used most and where obesity fell most is hard to ignore.

“Gallup's National Health and Well-Being Index found that the adult obesity rate fell from a peak of 39.”

That said, experts urge against crediting GLP-1 medicines alone. Greater public attention to obesity as a chronic disease, improved screening, better cardiovascular care and ordinary statistical variation could all be contributing. Gallup itself stressed that obesity in the US still far exceeds levels in many other wealthy countries, and that sustaining the progress will depend on "rebuilding healthier daily routines that complement pharmacological treatments."

There are clear caveats. The same data showed diabetes diagnoses reaching an all-time high of 13.8%, a reminder that the broader picture of metabolic health remains mixed, and a few years of data cannot guarantee a lasting trend. Even so, watching a nation's obesity rate fall meaningfully for the first time — after years of seemingly relentless increases — is a genuinely hopeful signal that the tide on a major public-health challenge may at last be starting to turn.