Oh my, the world’s heaviest mom is on a diet. Yeah, you better believe it. The 600lb woman who makes $90,000 a year from fans who paid to watch her eat more than 15,000 calories a day has been dumped by her “chubby chasing” fiance, so she is giving up the food. She is closing her subscription fee site, moving back to Ohio and starting a weight loss blog. BUT, Donna Simpson has left the fridge door ajar saying she might consider going back to the binge if she finds someone who wants her to be heavier again. So she shouldn’t sell her mobility scooter or her XXXXXXXL size clothes just quite yet.