I hope she wins the Darwin Award for her stupidity. She's already sterile and useless, may as well finish the job. I'd sooner it be by a bullet to the brain than anything else though, waste of food to keep that thing on life-support.
We all die one day, some sooner than others. We do not choose how long we have to live or when we are going to die, but sometimes we can choose how we are going to die. Unless of course you commit suicide in which case you can choose the time, date and means. You could say that by eating vast quantities of food she is in fact eating her self to death but then the same could be said of Alcohol Abuse and Smoking, but I digress.
I am of two opinions, one being that anyone should choose how they want to live their life so long as their way of life doesn't threaten anyone else's happiness. The second being that everyone regardless of Class, Gender, Race or Culture should strive to achieve personal perfection in all things, including eating healthy and exercising regularly.