"to arrive at our rankings, we calculated the percentage of people who are overweight, the percentage with type 2 diabetes, the percentage who haven't left the couch in a month (CDC Behavioral Risk Factor Surveillance System); the money spent on junk food (Bureau of Labor Statistics); and finally, the number of people who ate fast food nine or more times in a month (Mediamark Research)." (from msn.com)
Some states, such as Texas are now trying to pass legislature for chain restaurants to post nutrition information, in order for patrons to make better choices.
Right now, Nevada has no such law.
Some things to help get Nevada on the fit list instead of the fat list, would be to take steps to get off the couch, make better food choices, and bringing your own meals.