Even in the slimmest states, obesity rates aren't shrinking.

RODALE NEWS, EMMAUS, PA—Two out of three U.S. states have obesity rates over 25%, according to a report published Thursday by Trust for America’s Health and the Robert Wood Johnson Foundation (RWJF). The report, titled F as in Fat: How Obesity Threatens America’s Future 2011, also reveals that adult obesity rates increased in 16 states in the past year, and did not decline in any state. Twenty years ago, according to the annual report, no state had an obesity rate above 15 percent.

A listing of obesity rates by state shows that the 5 states with the highest obesity rate are Mississippi (34.4%), Alabama (32.3%), West Virginia (32.2%), Tennessee (31.9%), and Louisiana (31.6%). The lowest obesity rates occur in Hawaii (23.1%), Massachusetts (22.3%), Connecticut (21.8%), the District of Columbia (21.7%), and Colorado (19.8%).

Can anything undo the embiggening of America? The report authors recommend policymakers focus on protecting and implementing public health initiatives which enable healthy environments and healthy food—especially those intended to help children, such as the Healthy, Hunger-Free Kids Act. And they call on the food and beverage industry to adopt the food marketing practices proposed earlier this year by the Federal Trade commission and other federal agencies.

For help attaining a healthy weight, check out:

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From Prevention.com: 12 Eat-Right Rules That Work

What's your state's obesity rate? Check out the obesity rates by state and read the full report.