The country’s obesity epidemic continues to worsen, according to F as in Fat: How Obesity Threatens America’s Future 2010, a report from the Trust for America’s Health (TFAH) and the Robert Wood Johnson Foundation (RWJF). Adult obesity rates increased in 28 states in the past year, and more than two-thirds of states (38) have adult obesity rates above 25 percent. In 1991, no state had an obesity rate above 20 percent.