Southerners aren’t fatter. Just more honest. showcases some science that sets straight some old stereotypes. Southerners don’t have bigger guts than Americans from the North or the West. They just tell the truth when researchers ask:

The study recently published in the journal Obesity found that there’s a significantly higher percentage of obese people in a region of central and northwest states including Minnesota, Kansas and North and South Dakota.

“What we found is the West North Central region has about 41 percent obesity compared to 31 percent obesity in the southern region that includes Alabama and Mississippi,” said George Howard, professor in the Department of Biostatics at UAB. “By the way, 31 percent is not a good thing — but it’s not at the bottom.”

The notion that the South is the fattest comes primarily from a nationwide telephone survey done by the Centers for Disease Control, in which the surveyor asks for height and weight, among other things, Howard said.

That survey, the Behavioral Risk Factor Surveillance System (BRFSS), shows the South as the most obese, with Mississippi and Alabama, the number one and two fattest states respectively.

By comparing the BRFSS self-reported weight data with the REGARDS scale-weight data, researchers found that most everyone fudges, or underreports, their weight when asked on a telephone.

Turns out that Southerners fudge less, he said.

Howard also points out an interesting thing about “differential misreporting” between genders. Women tend to fudge their weight by saying they weigh less. Men fudge obesity data by saying they’re taller.