South Carolina, with an adult obesity rate of 30.9 percent, is the eighth most obese state in the country, according to a study released today.

Adult obesity rates increased in South Carolina and 15 other states in the past year and did not decline in any state, according to the “F as in Fat: How Obesity Threatens America’s Future 2011” report by the Trust for America’s Health and the Robert Wood Johnson Foundation.

Twelve states including South Carolina now have obesity rates above 30 percent. Four years ago, only one state was above 30 percent.

The study also shows the obesity rate in South Carolina increased more than 80 percent since 1995, when the rate was only 16.6 percent.

In the past 15 years, obesity rates increased by 80 percent or more in 39 states.

Read more in Friday’s editions of The Post and Courier.