Obesity over the years

Want to put this obesity crisis into perspective? Check out this post from The Agonist. It shows several maps, which represent the percentage of obese people in each state via colour coding. The maps go from mostly blue (low levels of obesity) to all red, orange and yellow (high levels of obesity.) In fact, in 2004, no state has less than 15% obesity among it's residents, and most have above 20%. And that was three years ago -- I'd be willing to bet that these stats have gone even high since.

Obesity seems to be growing exponentially, and it's clear that if we don't do something soon, a huge chunk of the nation is going to kill themselves with their own indulgence. But how do we stop this epidemic before the entire map turns red?