Body Weight/Calorie Simulator

I'm not sure if I'm posting this in the right forum, BUT I thought that this was an interesting article by the NY Times regarding obesity in the US.

ALSO, in the article, they include a newly developed Body Weight Simulator which will simulate how many calories you need to eat in order to lose a certain amount of weight in a certain amount of time.

Here's the article if you're interested: http://www.nytimes.com/2012/05/15/science/a-mathematical-challenge-to-obesity.html?ref=health

Here's the link to the simulator if you don't want to bother with the article: http://www.nytimes.com/2012/05/15/science/a-mathematical-challenge-to-obesity.html?ref=health