If you eat yourself, will you be two times bigger or dissapere compleatly?

I loved this questions stupidity so much i decided to answer it.

If you were to some eat yourself in the way that your implying you would disappear completely but gain a little weight in the process.
my reason for this is that it probably takes a lot of calories to eat and digest a human being and if that includes inedible things (such as bones) that would take much more time and calories to digest

plus we are mostly just water weight anyway ^^