Don't worry, it's probably not. To become this you need to reach an absurd weight, like around 700lbs, then lose about 300lbs in a short period of time. Unless you have a good running start in childhood, I doubt it's possible. Just the gain stage would take 10 years or more, and cost a metric fuckton of money in food. Chances are, beetus and pals will take you out before you ever reach this woman's peak weight.