A new Gallup-Healthways poll reveals that more than two-thirds of Americans are either overweight or clinically obese.The organization polled 176,702 adults in all 50 states and found that 28 percent of Americans are considered to be overweight, one percent higher than last year.

"Mississippi had the highest incidence of obesity in the nation for the second year in a row, at 35.2 percent," Gallup said in a statement to NBC. "Hawaii had the lowest incidence of obesity in 2014, making it the only state where fewer than one in five residents are obese."

People who are obese have a higher risk of developing diabetes, heart disease, arthritis, some cancer's and Alzheimer's disease. There is a worry that the economy will suffer due to the obesity rate.

"In a handful of states, more than a third of the population is obese," the poll reveals. "Obesity-related health problems could drive up healthcare costs and potentially have larger economic implications for states that suffer most."

 

The five skinniest states are:

• Hawaii: 19 percent
• Colorado: 20.3 percent
• Montana: 23.5 percent
• California: 23.9 percent
• Massachusetts: 24 percent

 

The most overweight states:
• Mississippi: 35.2 percent
• West Virginia: 34.3 percent
• Louisiana: 33.2 percent
• Arkansas: 33 percent
• Oklahoma: 32.6 percent

 

With additional reporting by Victoria Meneses

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