Arkansas has the highest adult obesity rate in the nation – 35.9 percent, up from 21.9 percent in 2000 and from 17.0 percent in 1995. Slightly more women are obese than men. As much as 18 percent of high school kids are obese, placing the state 4th in that category. A little more than 14 percent of 2- to 4-year-old kids are obese too. The trend has been increasing since 1998.