A new report forecasts a sharp rise in obesity in every American state over the next 20 years, though Georgia is projected to remain in the middle of the pack.

The research by Trust for America’s Health and the Robert Wood Johnson Foundation estimates that if current trends continue, 13 states would have obesity rates higher than 60 percent by 2030; 39 states would have rates topping 50 percent; and every state would exceed 40 percent.

In Georgia, the analysis found that 53.9 percent of adults would be obese, up from 28 percent now. Mississippi would remain the fattest state, with two-thirds of adults being obese. Colorado would be thinnest at 44 percent.

State rates in 2011 ranged from 20.7 percent in Colorado to 34.9 percent in Mississippi.